Kymco MO X500 Service Manual - chap 13 (albero motore)
13. CRANKCASE/CRANKSHAFT
XCITING 500
13
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
13
CRANKCASE/CRANKSHAFT
__________________________________________________________________________________
SCHEMATIC DRAWING ------------------------------------------------- 13- 1
SERVICE INFORMATION------------------------------------------------ 13- 2
TROUBLESHOOTING----------------------------------------------------- 13- 2
CAM CHAIN/CAM CHAIN GUIDE REMOVAL --------------------- 13- 3
CRANKCASE SEPARATION -------------------------------------------- 13- 4
CRANKCASE ASSEMBLY ----------------------------------------------- 13-11
13-0
13. CRANKCASE/CRANKSHAFT
SCHEMATIC DRAWING
XCITING 500
13-1
13. CRANKCASE/CRANKSHAFT
m
d
XCITING 500
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 Unit: mm (in)
Ite
Main bearing oil clearance
Crankshaft
TORQUE VALUES
Crankcase bolt 12 N•m (1.2 kgf•m, 9 lbf•ft)
Cam chain guide bolt 20 N•m (2 kgf•m, 15 lbf•ft)
Oil pipe bolt 43 N•m (4.3 kgf•m, 31 lbf•ft)
SPECIAL TOOLS
Bearing puller E037
Oil seal & bearing driver E014
Connecting rod big end side
clearance
Runout
0.025 (0.001)～0.041 (0.0016) 0.07 (0.003)
0.05 (0.002)～0.5 (0.02) 0.8 (0.031)
Standar
⎯ 0.06 (0.002)
Service Limit
TROUBLESHOOTING
Excessive engine noise
• Worn connecting to small end
• Worn or damaged crankshaft bearings
13-2
13. CRANKCASE/CRANKSHAFT
CAM CHAIN/CAM CHAIN GUIDE
REMOVAL
Remove the starter driven gear (page 12-4).
Remove the cylinder (page 9-3).
Remove the cam chain from the right
crankcase.
Cam Chain
Cam Chain Guides
XCITING 500
Remove the bolts and cam chain guides.
INSPECTION
Cam chain guide
Inspect the cam chain slipper surface of the
cam chain guide for wear or damage.
Bolts
13-3
Slipper Surface
13. CRANKCASE/CRANKSHAFT
t
Cam chain
Inspect the cam chain for cracks or stiff.
Bolts
CRANKCASE SEPARATION
Remove the parts required for crankcase
separation (page 13-2).
XCITING 500
Remove the twelve bolts from left crankcase.
＊
Loosen the bolts in a crisscross pattern in
several steps.
Remove the bolt from right crankcase.
Place the crankcase assembly with the left
side down and separate the right crankcase
from the left crankcase.
＊
Separate the right crankcase from the left
crankcase while tapping them at several
locations with a soft hammer.
Bol
13-4
Loading...