HYOSUNG Prima Service Manual page 127

CHASSIS
Complaint
Handling feels
1. Steering stem nut overtightened.
too heavy.
2. Broken bearing/race in steering stem.
3. Distorted steering stem.
4. Not enough pressure in tires.
Wobbly handle.
1. Loss of balance between right and left front suspension.
2. Distorted front axle or crooked tire.
Wobbly front wheel.
1. Distorted wheel rim.
2. Worn front wheel bearings.
3. Defective or incorrect tire.
4. Loose nut on axle.
5. Loose nuts on the rear shock.
6. Worn engine mounting bushing.
7. Loose nuts or bolts for engine mounting.
Front suspension
1. Weakened springs.
too soft.
2. Oil leakage of shock absorber.
Front suspension
1. Not enough grease.
too stiff.
2. Worn suspension arm spacer.
Noisy front
1. Not enough grease.
suspension.
2. Loose nuts on suspension.
Wobbly rear wheel.
1. Distorted wheel rim.
2. Defective or incorrect tire.
3. Loose nuts on the rear shock absorber.
4. Worn engine mounting bushing.
5. Loose nuts or bolts for engine mounting.
Rear suspension
1. Weakened spring.
too soft.
2. Oil leakage of rear shock absorber.
Noisy rear
1. Loosen nuts on shock absorber.
suspension.
2. Worn engine mounting bushing.
BRAKES
Complaint
Insufficient brake
1. Leakage of brake fluid from hydraulic system.
power.
2. Worn pad.
3. Oil adhesion on engaging surface of pad.
4. Worn disc.
5. Air entered into hydraulic system.
6. Worn shoe.
7. Friction surfaces of shoes are dirty with oil.
8. Excessively worn drum.
9. Too much brake lever play.
Brake squeaking.
1. Carbon adhesion on pad surface.
2. Tilted pad.
3. Damaged wheel bearing.
4. Worn pad.
5. Foreign substance entered into brake fluid.
6. Clogged return ports of master cylinder.
7. Brake shoe surface glazed.
8. Loose front-wheel axle or rear-wheel axle nut.
9. Worn shoe.
Symptom and possible causes
Symptom and possible causes
SERVICING INFORMATION 7-4
Remedy
Adjust.
Replace.
Replace.
Adjust.
Replace.
Replace.
Replace.
Replace.
Replace.
Retighten.
Retighten.
Replace.
Tighten.
Replace.
Replace.
Refill.
Replace.
Refill.
Retighten.
Replace.
Replace.
Replace.
Replace.
Retighten.
Replace.
Replace.
Retighten.
Replace.
Remedy
Repair or replace.
Replace.
Clean disc and pads.
Replace.
Bleed air.
Replace.
Replace.
Replace.
Adjust.
Repair surface with sandpaper.
Modify and fitting.
Replace.
Replace.
Replace brake fluid.
Disassemble and clean master cylinder.
Repair surface with sandpaper.
Tighten to specified torque.
Replace.