Sheave Distance And Offset Adjustment - Yamaha VK540EF Service Manual

SHEAVE DISTANCE AND OFFSET ADJUSTMENT

ESS00055
SHEAVE DISTANCE AND OFFSET ADJUST-
MENT
1. Measure:
S Sheave distance a
Use the sheave gauge.
Out of specification ! Adjust.
Sheave distance a :
267 X 270 mm (10.5 X 10.6 in)
Sheave gauge:
90890-01702, YS-91047-3
2. Adjust:
S Sheave distance
Adjustment steps:
S Loosen the engine mounting bolts.
S Adjust the position of the engine so that the
sheave distance is within the specification.
S Tighten the engine mounting bolts.
Mounting bolt (front) 1 :
103 Nm (10.3 mSkg, 74 ftSlb)
Mounting bolt (front) (rear) 2 :
53 Nm (5.3 mSkg, 38 ftSlb)
3. Measure:
S Sheave offset b
Use the sheave gauge.
Out of specification ! Adjust.
Sheave offset b :
14.5 X 17.5 mm (0.57 X 0.69 in)
Sheave gauge:
90890-01702, YS-39506-5
4. Adjust:
S Sheave offset
Adjustment steps:
S Apply the brake to lock the secondary sheave.
S Remove the bolt (secondary sheave) and sec-
ondary sheave 1 .
S Adjust the sheave offset by adding or remov-
ing shim(s) 2 .
Adding shim ! Offset is increased.
Removing shim ! Offset is decreased.
2-16
INSP
ADJ