2. Clearance measurement must be within 0.008-0.024".
GEN-0036
MEASURING CRANK PIN/
CONNECTING ROD CLEARANCE
1. Measure the crank pin diameter. Measurement must
be at least 1.102".
GEN-0037
2. Measure the connecting rod big end bore inside diam-
eter. Measurement must be within 1.1023-1.1029".
GEN-0038
3. Measure the crank pin/connecting rod clearance.
Measurement must be within 0.0002-0.0008".
GEN-0039
CRANKSHAFT BEARINGS
0744-992
Removing
1. Using a flat-blade screwdriver, carefully work the oil
seal from side-to-side out of the crankcase and cover.
2. Using a suitable press and with the crankcase or
crankcase cover secured into position, carefully heat
the case; then press the bearings out of the case.
NOTE: Thoroughly clean the bearing areas of the
crankcase and crankcase cover and inspect for any
nicks or imperfections of the bearing bosses of the
case.
Installing
1. Secure the crankcase and press the new bearing into
the boss of the crankcase and crankcase cover.
2. With the bearings installed and using a suitable seal
driver, install the oil seals with the spring side of the
seal facing the bearing; then coat the wear surfaces of
the seals with a film of grease.
CARBURETOR INSULATOR PLATE
1. Inspect for cracks, scoring, pitting, imperfections, or
warping.
CAUTION
Never reuse the crankshaft bearings. If the bearings
have been pressed out of the crankcase or crankcase
cover, they must be discarded.
CAUTION
When installing the new bearings, always press against
the outside race of the bearing.
