2007-2009 Yamaha F15/F20 Outboard Service Manual, Page 69Get this manual

2007-2009 Yamaha F15/F20 Outboard Service Manual, Page 69

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Periodic check and adjustment
1 Remove the gear oil check screw 1, and then install the vacuumpressure pump gauge

Checking the propeller

1 Check the propeller blades an