Vento Phantom R4i Service Maintenance Manual page 87

5. Loose nuts or bolts for engine mounting.
6. Worn rear wheel bearing.
Rear
1. Weakened shock absorber spring.
suspension too
2. Oil leaks from rear shock absorber.
soft.
Noisy rear
1. Loose nuts on shock absorber,
suspension.
2. Worn engine mounting bushing.
3. Loose bolts on shock absorber
Complaint
Symptom and possible causes
Insufficient 1. Leakage of brake fluid from hydraulic
brake power.
2. Worn pads.
3. Oil adhesion on engaging surface of
4. Worn disc.
5. Air entered into hydraulic system.
6. Worn shoe.
7. Friction surfaces of shoes are dirty with
VENTO MOTORCYCLES
8. Excessively worn drum.
9. Too much brake lever play.
BRAKES
system.
pads.
oil.
Rev no.01/ page 87of 84
Replace.
Retighten.
Replace.
Replace.
Replace.
Retighten.
Replace.
Retighten.
Remedy
Repair or replace.
Replace.
Clean disc and pads.
Replace.
Bleed air.
Replace.
Replace.
Replace.
Replace.
Adjust.