2001 Edition Yamaha F225A and LF225A Outboards Service Manual, Page 136Get this manual

2001 Edition Yamaha F225A and LF225A Outboards Service Manual, Page 136

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Power unit
Checking the timing chain
1 Check the timing chain for damage or wearReplace if necessary
S69J5970

Camshaft journal diameter c: 24.9624.98 mm (0.98270.9834 in