Service Manual

Governor Assembly
1. Lubricate and install the thrust washer on
the flyweight shaft. Lubricate and install the
flyweight assembly. Push it down on the
shaft until it snaps in place.
2. Place a small amount of grease on the
governor plunger and thrust washer. Install
them on the flyweight shaft. See Fig. 4-52.
Figure 4-49
Camshaft and Followers
1. Install the cam followers. They are both the
same, it makes no difference in which of the
two openings they are installed. Oil before
you insert them. See Fig.
4-50.
Figure 4-52
Figure 4-50
2. If the governor arm has been removed,
lubricate it and install it at this time.
3. Lubricate and install the camshaft. Make
sure the timing marks on the cam gear and
crankshaft gear are in line. See Fig. 4-51.
Figure 4-51
32
Crankcase
1. Place a new gasket on the block assembly.
2. Put a piece of protective tape over the
crankshaft keyway; lubricate the shaft.
3. Install the sump assembly on the block. You
may have to turn the crankshaft slightly to
get the camshaft gear and governor gear to
engage.
Do not force the fit as damage to
the nylon governor gear may occur. Take
care that the governor plunger does not
drop into the block assembly.
4. Tighten the seven sump screws to .4-.7 kg-m
(3.0-5.0 ft-lbs).
Oil Pump
1. Lubricate and install the center drive gear of
the gerotor set. You may have to turn the
gear to get it to properly engage with the
drive pin on the camshaft.
2. Lubricate and install the outer gear of the
gerotor set. Put the gears back into the
engine the same way they came out. This
will maintain any wear pattern that may
have developed in the gear set. See Fig.
4-53.
3. Install the “0” ring and cover plate. Torque
the three screws to
.4-.7 kg-m (3.0-5.0
ft-I bs).