Checking Timing Belt - Yamaha F40A Owner's Manual

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
ends.
NOTE:
602053
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.
EMU00381

CHECKING TIMING BELT

Inspect the timing-belt and replace it if
any of the following signs is observed:
8 Cracks in the back of the belt or in the
base of belt teeth.
8 Excessive wear at the roots of cogs.
8 Rubber portion swollen by oil.
8 Belt surfaces roughened.
206011*
8 Signs of wear on edges or outer surface
of belt.
cC
Consult your Yamaha dealer when replac-
ing or adjusting the timing-belt.
NOTE:
If the timing belt can be stretched by 10
mm (0.39 in) or more by pushing with
your finger in the middle between the pul-
leys, the belt tension needs adjust.
4-29
GB