DAELIM a.four User Manual

9-1
9. TRANSMISSION/CRANKSHAFT/CRANKCASE
SERVICE INFORMATION
GENERAL SAFETY
● This section describes how to remove the crank case and to maintain the transmission and the crankshaft.
● Always use special tools to change the drive shaft. Fix the bearing inner race, andn install the shaft.
● The following parts must be removed prior to removing the crank case. Follow the removal procedure specified in each
section.
-OIL PUMP (
SECTION 4 )
-CARBURETOR (
SECTION 5 )
-ENGINE (
SECTION 6 )
-CYLINDER HEAD/ CYLINDER/ PISTON (
SECTION 8 )
-AC GENERATOR (
SECTION 13 )
-DRIVE PULLEY (
SECTION 7 )
-CLUTCH/DRIVEN PULLEY (
SECTION 7 )
-REED VALVE (
SECTION 5 )
● The following parts must be removed prior to changing the L. crank case. Follow the removal procedure specified in
each section.
-TRANSMISSION (
SECTION 9 )
-REAR BRAKE (
SECTION 12 )
● To assemble the crank case and crankshaft, set the special tool to the inner race of the crankshaft bearing, and push and
assemble. Remove the bearing from the crankshaft during disassembling work, and insert a new bearing in the case.
Install the oil seal after the case is assembled.
SPECIFICATIONS
TROUBLESHOOTING
Engine Noise
● Clearance in the connecting rod large end portion/small end portion bearing.
● Clearance in the crankshaft bearing.
9
SERVICE INFORMATION 9-1
TROUBLESHOOTING 9-1
TRANSMISSION 9-2
CRANKSHAFT REMOVAL 9-5
CRANKCASE BEARING REMOVAL 9-6
CRANKSHAFT INSTALLATION 9-7
0.15~0.55mm
0.010~0.02mm
0.03mm
0.05mm
0.60mm
0.04mm
0.15mm
0.10mm
ITEM
CRANK
SHAFT
Large end side clearance
Connecting rod large end right angle direction clearance
Crank shaft shaking
Right
Left
STANDARD VALUE SERVICE LIMIT

DAELIM a.four Specifications

General

Brand	DAELIM
Model	a.four
Category	Scooter
Language	English