Removing The Crankcase; Checking The Crankcase - Yamaha PW50W 2007 Service Manual

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CRANKCASE AND CRANKSHAFT

REMOVING THE CRANKCASE

1. Remove:
NOTE:
Loosen each screw 1/4 of a turn at a time, in
stages and in a crisscross pattern. After all of
the screw are fully loosened, remove them.
2. Separate:
1
a
a 95 mm (3.74 in)
NOTE:
9 Fully tighten the tool holding bolts, but make
9 As pressure is applied, alternately tap on the
3. Remove:

CHECKING THE CRANKCASE

1. Thoroughly wash the crankcase halves in
2. Thoroughly clean all the gasket surfaces
5-40
9 Crankcase screw
9 Crankcase (left)
Use the bolts (M8×1.25, length 95 mm
(3.74 in)) 1 and a flywheel puller 2.
Flywheel puller
90890-01362, YU-33270
sure the tool body is parallel with the case. If
necessary, one screw may be backed out
slightly to level tool body.
front engine mounting boss and transmis-
sion shafts.
9 Crankshaft
a mild solvent.
and crankcase mating surfaces.
ENG