2009 Yamaha F40 Outboard Service Manual, Page 311Get this manual
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Bracket unit
No17 18 19 20 21 Part name Damper Gasket Drain bolt Rubber seal Rubber seal
27 Nm (2.7 kgfm, 19.9 ftlb)
27 Nm (2.7 kgfm, 19.9 ftlb)