This is the complete factory service repair manual for the YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978.

YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 SERVICE REPAIR MANUAL

This service manual comes in PDF format. We recommend to use Adobe PDF Reader, to be sure all images / graphics will display correctly. This Service Manual has easy-to-read text sections with top quality diagrams and instructions. They are specifically written for the do-it-yourselfer as well as the experienced mechanic. With step-by-step instruction & highly detailed exploded pictures & diagrams to show you how to complete the required job correctly & efficiently. Using YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Service Repair Workshop Manual covers every single detail on your machine. Provides step-by-step instructions based on the complete disassembly of the machine.
This YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 repair manual is an inexpensive way to keep your vehicle working properly.


Models Covers:

- YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978

This professional technical manual contains service, maintenance, and troubleshooting information for your YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978, covering All Models/Engines/Trim/Transmissions Types. This top-quality YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Workshop Repair Service manual is COMPLETE and INTACT as should be without any MISSING/CORRUPT part or pages. It is the SAME manual used in the local service/repair shop. YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 manual is guaranteed to be fully functional to save your precious time.

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YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 SERVICE MANUAL
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Keywords:
YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Horn YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Power Outlet YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Body Control System YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 LAN System YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Power Control System YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Charging System YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Power Supply, Ground and Circuit Elements YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Meter, Warning Lamp and Indicator YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Warning Chime System YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Sonar System YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Audio YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Visual and Navigation System YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Cruise Control System YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Servicing YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Clutch YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Transmission YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Cooling systems YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Fuel & Exhaust YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Ignition & electrical YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Wheels & tyres YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Steering YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Suspension YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Wiring diagrams YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Troubleshooting YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Care and Safety YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Routine Maintenance YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Attachments YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Body and Framework YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Electric YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 DTC Index YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 General Information YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Engine Mechanical YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Engine Lubrication System YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Engine Cooling System YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Engine Control System YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Fuel System YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Exhaust System.
YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Fuel Screen, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Ignition Coil, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Spark Plug Wires, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Alternator, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Alternator Pulley, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Starter, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Clutch Kit, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Clutch Slave Cylinder, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Clutch Master Cylinder, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Flywheel, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Axle Assembly, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Axle Shafts, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 CV Boots, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Hubs, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Bearings, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Cylinder Head, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Head Gasket, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Timing Belt, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Valve Cover, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Multi Rib Belt, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Oil System, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Serpentine Belt, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 AT Filters, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Gaskets, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Seals, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Shifters, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Components, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Engine Mount, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Transmission Mount, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Power Programmer, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Air Pressure Gauge, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Air Pressure, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Oil Pressure, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Ammeter, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Blower Pressure, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Gauge, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Gaskets, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Seals, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Grommets, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Orings, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 O-Ring, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 O-Rings, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Chassis Wire Harness, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Main Wire Harness, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Electrical Pin Connector, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Relay, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Bosch, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 K&N, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 American Condensers, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Eastern Catalytic, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Bosal Performance, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Alker, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Silla, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Denso, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 NGK, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Hastings, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Dayco, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Sachs, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 AC Delco, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Dorman, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Timken, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 AEM, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Airtex, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Apexi, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Bando, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Beck Amley, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Benchmark, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Bosal, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Champion, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 ContiTech, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 CSF, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 4-Seasons, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Bulbs, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Driving Lights, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Fog Lights, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Interior Lights, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Lighting, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Tail Lights, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Backup Lights, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Turn Signal, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Side Markers, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Brake Discs, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Brake Pads, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Brake System, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Shocks, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Struts, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Steering System, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Suspension, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Suspension System, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Floor Mat, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Cargo Liners, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Consoles, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Organizers, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Leather, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Glass, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Window, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Windshield, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Steering Wheel, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Shifter, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Pedals, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Lugs, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Lug Nuts, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Hub Caps, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Wheel Cover, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Rotate Tires, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Bumper, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Front Bumper, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Rear Bumper, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Fender, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Doors, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Emblem, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Fuel Cap, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Fuel Door, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Grilles, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Front Grille, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Hood, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Jack, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Hoist, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Lifting, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Stands, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Mud Guards, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Mud Flaps, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Headlight Relay, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Starter Relay, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Ignition Relay, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Valve Stem, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Window Regulator, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Door Handle, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Hood Hinge, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Hood Latch, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Wiper Blade, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Wiper Motor, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Washer Pump, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Fuel Tank Cap, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Courtesy Light, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Door Jamb Switch, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Door Lock, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Fuel Filler Neck, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Antenna, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Flush, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Electrical Wiring, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Diagrams, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Torque Specs, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Torque Values, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Tire Replacement, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Flat Repair, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Timing Belt Replacement, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Routine Maintenance, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Service Manual, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Repair Manual, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Instant Download, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Carb, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Intake, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Heads, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Camshaft, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Cam, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Valve Train, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Block, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Pistons, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Rings, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Rods, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Crankshaft, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Crank, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Oil Pump, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Pan, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Ignition, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Fasteners, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Gaskets, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Bearings, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Damper, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Machining, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Balancing, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Parts, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Lifter, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Distributor, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Spark Plugs, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Spark Plug Wires, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Oil Change, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Transmission Change, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Fluid Change, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 NOS, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Motor Mounts, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Clips, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Heat Exchanger, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Plug Wires, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Air Seals, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Timing, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Muffler, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Downpipe, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Cat, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Catalytic Converter, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Exhaust, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Headers, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Heat Wrap, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Fuel Pump, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Replacement, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Pushrod, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Pressure Plate, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Clutch, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Flywheel, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Seals, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Valves, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Valve Stems, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Tires, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Rotate, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Rotate Tires, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Alignment, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Timing Gear, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Crank Pulley, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Air Deflector, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Air Hose, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Clutch Hose, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Brake Hose, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Brakes, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Change Brakes, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Brake Pads, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Brake Shoes, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Rotor, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Rotor Replacement, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Clutch Lines, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Head Gasket, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Piston Ring, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Main Bearings, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Cam Bearings, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Timing Chain, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Valve Locks, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Freeze Plugs, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Freon, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Radiator, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Radiator Fan, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Oil Radiator, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Oil Cooling, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Push Rods, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Intake Valves, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Exhaust Valves, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Valve Guides, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Valve Springs, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Piston Pin Bushings, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Bushings, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Ring Set, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Axles, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Shift Linkage, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Short Shifter, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Shifter Cable, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Engine Harness, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Wiring Harness, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Wiring Diagrams, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Sensors, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Oil Sensor, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Pressure Sensor, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Oil Pressure Sensor, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Volt Meter, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Air Screw, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Body Plug, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Banjo Bolt, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Body Tappet, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Band Nut, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Cam Salai, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Cam Bolt, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Rotor Puller, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Wrench, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Rotor Bolt, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Balance Spring, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Cylinder, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Gasket, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Insulator, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Carburetor, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Muffler, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Exhaust Gasket, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Crankcase, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Pin, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Crank Shaft Seal, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Snap Ring, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Piston Ring, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Piston Pin, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Thrust Washer, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Clutch Shoe, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Clutch Case, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Transfercase, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Transfer Case, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Transfer Plate, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Plug Cap, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Grommet, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Spacer, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Recoil Assembly, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Ratchet, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Carburetor Assembly, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Diaphragm, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Pump, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Spring, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Inlet Valve, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Welch Plug, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Throttle Shaft, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Choke Shaft, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Choke Valve, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Air Filter, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Air Filter Replacement, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Fan Cover, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Filter Cover, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Filter Housing, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Sleeve, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Choke Lever, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Switch Assembly, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Assembly, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Recoil Starter, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Starter Replacement, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Battery, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Battery Replacement, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Fuel Pump Replacement, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Fuel Pump, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Fuel Filter, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Fuel Filter Replacement, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Fuel Pipe, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Puller Assembly, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Hinge, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Door Hinge, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Door Panels, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Dashboard, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Dash Replacement, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Air Bags, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 CD Player Replacement, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Factory Replacement, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Glovebox, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Center Console, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Console Replacement, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Interior Lighting, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Lights, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 HID, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Projector, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Headlight Replacement, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Taillight Replacement, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Bulb Replacement, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Fogs, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Foglight, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Foglight Replacement, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Third Brake Light, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Trim, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Trim Replacement, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Tun Signal, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Catalytic Converter, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Headers, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Manifold, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Oxygen Sensor, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Air Filter, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Cold Air Intake, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 PCV, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 AC Condenser, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 ACC Cabin Filter, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Heater System, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Cooling System, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Coolant Hose, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Fan Shroud, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Radiator, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Fuel Filter, YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 Fuel Injector.

YAMAHA 250-400CC 2-STROKE TWINS 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 SERVICE MANUAL