Service Manual

Figure 4-15
Valves
1. The valve keepers may be removed by hand.
Support the bottom of the valve with your
fingers and push down and back with your
thumbs on the keeper. See Fig. 4-16.
Figure 4-16
2. The valves may now be withdrawn from the
head. The valve springs and keepers are
identical and interchangeable. See Fig.
4-1
7.
Oil Pump
1. Turn the engine upside down and remove
the three screws retaining the oil pump
cover. Use a 10 mm wrench or socket. See
Fig. 4-18.
PCOVER
Figure 4-18
2. Remove the oil pump cover and examine the
condition of the
“0” ring. The oil pump is a
two-piece gerotor type oil pump driven by
the camshaft. See Fig. 4-19.
Figure 4-19
3. When removing the gerotor set, note the
orientation of the parts
so they may be
reassembled in the same order.
Oil is drawn out of the crankcase through
the opening toward the top in Fig.
4-20 and
discharged through the opening in the
bottom and up through the center of the
camshaft.
Figure 4-17
25
Figure 4-20