2005 Yamaha F90TR 90HP Outboards Factory Service Manual, Page 158Get this manual
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Upper case 20 (2.0 kgf m, 14.8 ft Ib)
S6D87050
No1 10 11 12 13 14 15 16 17
Part name Bolt Upper mount Plate Washer Washer Bolt Bolt Muffler assembly Gasket Drain bolt D