25
Repair Manual PS-35
12 CYLINDER / PISTON / CRANKCASE
Remove and reinstall the circlip
7
with needle-
nose pliers.
Install the piston with the arrow marking
8
on
the outlet side of the crankshaft (piston ring
lock on the inlet side).
Before assembly, wet the cylinder path,
piston and needle bearing with oil!
Crankcase
Use a new crankcase gasket, cylinder base
gasket and radial seal rings.
Remove the radial seal rings with the puller
(Chap. 00 Item 15).
Fill new radial seal rings
5
with grease and
place in housing.
Crankcase
Crankcase CS
1
and MS
2
are replaceable as
separate parts, and are bolted with 3 bolts
3
(10 +/-0.5 Nm).
Insert crankcase gasket
4
dry.
The crankcase is bolted to the engine mount
with 4 bolts
6
(10 +/-0.5 Nm).
Ball bearing
Heat both crankcase sides CS and MS to 150-
160°C.
Wet deep-groove ball bearing evenly with
Loctite 601 and insert in hot housing without
using pressure.
Grease crankshaft
5
with two-stroke oil.
7
8
1
4
5
5
6
2
3
