Workshop Manual

104
8
502 71 26-01
504 90 90-01
Crankshaft and crankcase
Crankshaft
Dismantling
Remove the screw which holds the crank-
shaft’s bearing housing.
Lift up the crankshaft and bearing housing
from the crankcase.
Separate the bearing housing and crank-
shaft.
Remove the sealing ring and the oil pump
gear.
Pull off the ball bearings from the shaft
journals.
Check the tip of the screw which goes
against the oil pump. If the screw is worn
it should be replaced with a new one.
Crankshaft
Dismantling
The crankshaft’s bearing housing is
attached in the crankcase with a screw
placed to the side of the oil pump. It is
accessible from underneath the crank-
case.
Lift up the crankshaft and bearing housing
from the crankcase.
Separate the crankshaft and bearing
housing. If necessary give a few light taps
with a plastic mallet.
Remove the sealing ring on the clutch
side.
Fit extractor 502 71 26-01 and pull off the
oil pump gear.
Remove the sealing ring and washer on
the magneto side.
Pull off the ball bearings by means of
extractor 504 90 90-01.
Inspect the crankshaft as per the section
”Checking of crankshaft”.
Check the tip on the screw which goes
against the oil pump. If the screw is worn
it should be replaced with a new one.