3.13 Parting of engine housing halves
– Top ignition-gear upwards and remove all housing screws.
– Release engine mounting brackets on work stand.
– Lift left-hand housing half with suitable tools by on the bosses provided, or part
with a few light plastic mallet blows against the countershaft from the right-hand
housing half.
!
CAUTION
!
L
EVERING APART WITH A SCREW DRIVER OR SIMILAR TOOL MUST BE AVOIDED, SINCE THE SEAL
FACES ARE EASILY DAMAGED
.
N
OTE
: W
ATCH GEAR SHAFT STOP DISCS
1
TO PREVENT THEM STICKING TO INSIDE OF HOUSING
.
3.14 Shift mechanism, transmission
– Pull out the shift rails
2
and swing the shift forks aside.
– Pull the shift roller
3
out of the bearing seat.
– Remove the shift forks.
NOTE
: ALTHOUGH THE COUNTER SHAFT SHIFT FORKS ARE IDENTICAL THEY SHOULD BE REFITTED
IN THE SAME POSITION AS BEFORE IF REUSED
. THEREFORE MARK ACCORDINGLY UPON REMOVAL.
– Push drive shaft
4
approx. 30 mm upwards and remove countershaft
5
. It is
then possible to remove the mainshaft completely from bearing.
N
OTE: WATCH COUNTERSHAFT STOP DISC TO PREVENT IT STICKING TO THE HOUSING.
3.15 Crankshaft
– Pull crankshaft out of bearing seat (if necessary by tapping gently with a plastic
hammer).
– Take distance bushing
6
out of seal shaft ring and remove O-ring
7
.
– Clean all parts and check for wear, replace if necessary.
N
OTE: WHEN AN ENGINE IS COMPLETELY OVERHAULED IT IS RECOMMENDED THAT ALL GAS-
KETS, SHAFT SEAL RINGS AND O-RINGS ARE RENEWED.
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