kymco mo yup50 Instruction De Maintenance

Item

Standard (mm)

Service Limit (mm)

Axle shaft runout

æ

0.2

Radial

æ

2.0

Front wheel rim runout

Axial

æ

2.0

Front shock absorber spring free length

226.5

208

Brake disk thickness

35_

3.8

3.0

Brake disk runout

æ

0.30

Brake master cylinder I.D.

12.700_

12.743

12.75

Brake master cylinder piston O.D.

12.657_

12.684

12.64

Brake caliper piston O.D.

25.400_

25.405

25.45

Brake caliper piston I.D.

25.318_

25.368

25.30

TORQUE VALUES
Handlebar lock nut

4.0_

5.0kg-m

Front damper nut

1.5_

3.0kg-m

Steering stem lock nut

0.5~1.3kg-m

Front axle nut

5.0_

7.0kg-m

Steering top cone race

6~8kg-m

Brake arm bolt

1.0~1.4kg-m

SPECIAL TOOLS
Lock nut wrench

Driver handle A

Lock nut socket wrench

Outer driver, 37x40mm

Outer driver, 28x30mm

Pilot, 10mm

Rear shock absorber remover

Bearing puller

Rear shock absorber compressor 

Snap ring pliers (close)

Ball race remover

Damper compressor

• Contaminated brake disk or disk pad

• Excessively tightened steering stem top 

• Worn brake bushing

cone race

• Worn brake master cylinder piston oil seal

• Broken steering balls

• Clogged brake fluid line

• Insufficient tire pressure

• Deformed brake disk

• Unevenly worn brake caliper

• Broken clutch weight spring

• Bent front fork

• Bent rim

• Bent front axle or uneven tire

• Loose front axle

• Bent spoke plate

• Incorrectly adjusted brake

• Faulty tire

• Worn brake linings

• Improperly tightened axle nut

• Contaminated brake lining surface

• Worn brake cam

• Weak shock springs

• Worn brake drum

• Insufficient damper oil

• Poorly connected brake arm

• Slider bending

• Air in brake system

• Loose fork fasteners

• Deteriorated brake fluid

• Lack of lubrication