KYMCO GRAND DINK 250 User Manual

11. CRANKCASE/CRANKSHAFT
11-2
GRAND DINK 250
SERVICE INFORMATION
GENERAL INSTRUCTIONS
• This section covers crankcase separation to service the crankshaft. 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 (
Ö
6-4)
Cylinder/piston (
Ö
7-3)
Right crankcase cover/drive and driven pulley (
Ö
8-3)
A.C. generator/starter clutch (
Ö
10-3)
Rear wheel/rear shock absorber (
Ö
15-4)
Starter motor (
Ö
19-3)
Oil pump (
Ö
4-4)
SPECIFICATIONS
Ite
m
Standard (mm) Service Limit (mm)
Connecting rod big end side clearance
0.150.35 0.6
Crankshaft Connecting rod big end radial clearance
0.0.008 0.05
Runout
⎯ 0.10
TORQUE VALUES
Crankcase bolt 7.810.8N-m
Cam chain tensioner slipper bolt 7.811.8N-m
SPECIAL TOOL
Gear remover
TROUBLESHOOTING
Excessive engine noise
• Excessive bearing play
• Excessive crankpin bearing play
• Worn piston pin and piston pin hole

KYMCO GRAND DINK 250 Specifications

General

Displacement	249.1 cc
Cooling System	Liquid-cooled
Fuel System	Electronic Fuel Injection
Transmission	CVT
Front Suspension	Telescopic fork
Rear Suspension	Dual shock absorbers
Front Brake	Disc
Rear Brake	Disc
Front Tire	120/70-12
Rear Tire	130/70-12
Seat Height	780 mm
Engine Type	4-stroke, Single-cylinder