KYMCO XCITING 500 Service Manual page 218

13
. CRANKCASE/CRANKSHAFT
SERVICE INFORMATION
GENERAL INSTRUCTIONS
• This section covers crankcase separation to service the crankshaft and balancer. The engine must
be removed for this operation.
• When separating the crankcase, never use a driver to pry the crankcase mating surfaces apart
forcedly to prevent damaging the mating surfaces.
• When installing the crankcase, do not use an iron hammer to tap it.
• The following parts must be removed before separating the crankcase.
Cylinder head (section 8)
Cylinder/piston (section 9)
Drive and driven pulley (section 10)
A.C. generator/starter clutch (section 12)
Starter motor (section 19)
Oil pump (section 4)
SPECIFICATIONS
Main bearing oil clearance 0.025 (0.001)～0.041 (0.0016)
Crankshaft Connecting rod big end side
clearance
Runout
TORQUE VALUES
Crankcase bolt
Cam chain guide bolt
Oil pipe bolt
SPECIAL TOOLS
Bearing puller
Oil seal & bearing driver
TROUBLESHOOTING
Excessive engine noise
• Worn connecting to small end
• Worn or damaged crankshaft bearings
Item
12 N•m (1.2 kgf•m, 9 lbf•ft)
20 N•m (2 kgf•m, 15 lbf•ft)
43 N•m (4.3 kgf•m, 31 lbf•ft)
E037
E014
Standard
0.05 (0.002)～0.5 (0.02)
⎯
XCITING 500
Unit: mm (in)
Service Limit
0.07 (0.003)
0.8 (0.031)
0.06 (0.002)
13-2