Yamaha VMX12H Supplementary Service Manual page 185

3-6 1
CRANKCASE ASSEMBLY
1. Apply:
Sealant (Quick Gasket@)
To the mating surfaces of both
NOTE:
DO NOT ALLOW any sealant to come in contact
with the oil gallery O-ring, or crankshaft bear-
ings. Do not apply sealant to within
(0.08 0.12 in) of the bearings.
2. Set
shift cam and transmission gears in
NEUTRAL position.
3. Install:
Upper crankcase
pins
To the lower crankcase.
NOTE:
Attach a length of wire to each cam chain and
place cam chains on timing gear sprockets.
Before tightening the crankcase bolts, check the
following points:
sure the gear shifts correctly while
turning the shift cam.
Be sure the balancer shaft gear is aligned so that
the dot mark lines up between the triangular
timing marks on the upper crankcase when
the No. 1 piston is a t TDC.
Balancer shaft mark
Triangular timing marks
4. Finger-tighten the several crankcase bolts,
preferably wide apart. Then, turn the crank-
case assembly upside down.
NOTE:
Be careful not to let pistons fall out of the
cylinders.
5. Install:
Rod caps
NOTE:
Be sure the letters on both components align
to form a perfect character.
I
case halves.
-
2
3
mm