2009 Yamaha F40 Outboard Service Manual, Page 213Get this manual
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Power unit
10 11 12 13 14 12
18 20 23 22
Remarks
13.5 Nm (1.35 kgfm, 9.96 ftlb)
No1 10 11 12 13 14 15 16 17
Part name Intake valve Exhau