Kymco MO FILLY 50LX Service Manual - chap 11 (albero motore)

11. CRANKCASE/CRANKSHAFT

11-0

FILLY LX 50

11

11

11. CRANKCASE/CRANKSHAFT

11-1

FILLY LX 50

SERVICE INFORMATION

GENERAL INSTRUCTIONS

• This section covers crankcase separation to service the crankshaft. The engine must be removed

for this operation.

• The following parts must be removed before separating the crankcase.

-Cylinder head (!Section 7)

-Cylinder/piston (!Section 8)

-Drive and driven pulleys (!Section 9)

-A.C. generator (!Section 14)

-Carburetor/air cleaner (!Section 5)

-Rear wheel/rear shock absorber (!Section 13)

-Starter motor (!Section 16)

-Oil pump (!Section 4)

SPECIFICATIONS

Item

Standard (mm)

Service Limit (mm)

Connecting rod big end side clearance

0.10_ 0.35

0.55

Crankshaft

Connecting rod big end radial clearance

0-0.008

0.05

Runoutæ0.10

TORQUE VALUES

Crankcase bolt 0.8~1.2kgf-m
Cam chain tensioner slipper bolt 0.8~1.2kgf-m

TROUBLESHOOTING

Excessive engine noise

• Excessive bearing play

• Excessive crankpin bearing play

SERVICE INFORMATION

......................

11-1 CRANKSHAFT

......................................

11-3

TROUBLESHOOTING

.............................

11-1 CRANKCASE ASSEMBLY

...................

11-4

CRANKCASE SEPARATION

..................

11-2

11. CRANKCASE/CRANKSHAFT

11-2

FILLY LX 50

CRANKCASE SEPARATION

Remove the cam chain tensioner slipper bolt
and cam chain tensioner slipper.

Remove the crankcase attaching bolt.
Separate the left and right crankcase halves.

Remove the gasket and dowel pins.

Remove the crankshaft from the left
crankcase.
Remove the cam chain.

Cam Chain T ensioner Slipper Bolt

Cam Chain

• Do not damage the crankcase

gasket surface.

• Never use a driver to pry the

crankcase mating surfaces apart.

＊

Dowel Pins

Crankcase Bolt