Yamaha 20C Manuel D'utilisation page 130

3) Install the spacer and washer. Tighten
the propeller nut to the specified
torque.
Tightening torque:
Refer to "SPECIFICATIONS" page 4-1.
4) Align the propeller nut with the pro-
peller shaft hole. Insert a new cotter
pin in the hole and bend the cotter pin
602053
ends.
NOTE:
If the propeller nut does not align with the
propeller shaft hole after tightening to the
specified torque, then tighten the nut fur-
ther to align it with the hole.
4-16
GB