KYMCO XCITING 500 Service Manual page 224

13
. CRANKCASE/CRANKSHAFT
MAIN BEARING INSPECTION
Inspect the bearing inserts for unusual wear,
damage or peeling and replace the crankcase
if necessary.
Main bearing oil clearance
Clean off any oil from the main bearing
inserts and crankshaft journals.
Measure and record the crankshaft main
journal O.D..
Measure and record the main bearing I.D..
Calculate the oil clearance by subtracting the
journal O.D. from bearing I.D..
Standard:
0.025 – 0.041 mm (0.001 – 0.0016 in)
Service limit: 0.07 mm (0.003 in)
Replace the crankcase if the service limit is
exceeded.
Select the replacement crankcase (page 13-7).
CRANKSHAFT INSPECTION
Measure the connecting rod big end side
clearance.
Service limit: 0.8 mm (0.031 in)
Measure the crankshaft runout.
Service limit: 0.06 mm (0.002 in)
BALANCER SHAFT INSPECTION
Inspect the balance shaft gear teeth.
Burrs/chips/roughness/wear → Replace.
Bearing
Runout Side Clearance
Journals
Balancer Shaft
XCITING 500
Runout
Bolts
13-8