48 / 71
Fig. 102
6
Compress Compression spring 12 [2] by pushing in
and holding Retainer [1] with 1R389 and 1R005. And
then, with a slotted screwdriver or the like magnetized
with 1R288, install Cotters [3] (Two Cotters are used
for each Valve).
Fig. 103
7
The ring end gaps of Piston ring [1] should be at 180
degrees to each other. The ring end gaps of the three
parts of Oil ring [2] should be at 120 degrees to one
another.
Tips
The orientation of Second ring matters. When the ring is
installed on Piston [3], the white paint mark should be
located on the right side of the ring end gap.
Fig. 104
8
Apply a small amount of 4-stroke engine oil to the
contact surface of Crankshaft [1] and Piston pin 11 [2]
before assembling Piston [3] and Crankshaft [1]
together by inserting Piston pin 11 [2].
Fig. 105
9
When installing Ring spring 11 [1], do not align the
ring end gap with the notch of Piston.
[1]
[1]
[2]
[3]
[2]
[3]
[1]
1R389
1R005
[3]
[1]
[2]
