Dissassembling The Crankcase; Removing The Crankshaft Assembly - Yamaha YZ85W1 Service Manual

CRANKCASE AND CRANKSHAFT
×
M6 1.0
100 mm (3.94 in)
5-41
EAS00385

DISSASSEMBLING THE CRANKCASE

1. Remove:
• right crankcase
(with the crankcase separating tool
Crankcase separating tool
90890-01135, YU-1135-A
NOTE: NOTE:
• Fully tighten the tool holding bolts, but make
sure the tool body is parallel with the case. If
necessary, one screw may be backed out
slightly to level tool body.
• As pressure is applied, alternately tap on the
front engine mounting boss and transmission
shafts.
CAUTION:
• Turn the segment
in the figure so that it does not contact the
crankcase.
• Use soft hammer to tap on the case half.
Tap only on reinforced portions of case.
Do not tap on gasket mating surface. Work
slowly and carefully. Make sure the case
halves separate evenly. If one end "hangs
up", take pressure off the push screw,
realign, and start over. If the cases do not
separate, check for a remaining case
screw or fitting. Do not force.
EAS00388

REMOVING THE CRANKSHAFT ASSEMBLY

1. Remove:
• crankshaft
(with the crankcase separating tool
Crankcase separating tool
90890-01135, YU-1135-A
NOTE: NOTE:
Make appropriate bolts
by yourself and attach the tool with them.
CAUTION:
Do not use a hammer to drive out the
crankshaft.
ENG
)
to the position shown
)
as shown available