2005 Yamaha F90TR 90HP Outboards Factory Service Manual, Page 84Get this manual

2005 Yamaha F90TR 90HP Outboards Factory Service Manual, Page 84

Power unit
S6D85390

NOTE: Apply engine oil to the driven sprocket bolts before installation Do not turn the camshafts when tightening the driven sprocket boltsS6D85380

Flywheel magnet holder: YB-06139

Checking the timing belt and sprockets
1Check the interior and exterior of the timing belt for cracks, damage, or wearReplace if necessary2Check the drive sprocket and driven sprockets for cracks, damage, or wearReplace if necessaryTR

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