For your consideration is a Yamaha oem Service Manual pdf download:
Manual # LIT-18616-02-51_2004-2011 F150 4-stroke_LF150 Left 4-stroke models ---306 pgs
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This Downloadable PDF Manual Covers The Following Machines:
1998 YAMAHA 150HP 2-STROKE SALTWATER SERIES OUTBOARDS
1998 YAMAHA 200HP 2-STROKE SALTWATER SE......