7-6 SERVICING INFORMATION
CARBURETOR
Complaint Symptom and possible causes Remedy
Starting difficulty.
1. Clogged starter jet.
2. Clogged starter jet passage.
3. Air leaking from joint between starter body and car-
buretor.
4. Air leaking from carburetor joint or vacuum hose joint.
5. Improperly working starter (enricher) plunger.
Clean.
Clean.
Tighten, adjust or replace
gasket.
Tighten or replace
defective part.
Adjust.
Idling or low-speed
trouble.
1. Clogged or loose pilot jet.
2. Clogged or loose pilot air jet.
3. Air leaking from carburetor joint, vacuum pipe joint, or
starter.
4. Clogged pilot outlet port.
5. Clogged bypass port.
6. Starter (enricher) plunger not fully closed.
Clean or tighten.
Clean or tighten.
Tighten or replace
defective part.
Clean.
Clean.
Adjust.
Medium-or high speed
trouble.
1. Clogged main jet.
2. Clogged main air jet.
3. Clogged needle jet.
4. Improperly working throttle valve.
5. Clogged fuel filter.
Clean.
Clean.
Clean.
Adjust.
Clean or replace.
Overflow and fuel level
fluctuations.
1. Worn or damaged needle valve.
2. Broken needle valve spring.
3. Improperly working float.
4. Foreign matter on the needle valve.
5. Incorrect float chamber fuel level.
Replace.
Replace.
Adjust or replace.
Clean or replace with
needle valve seat.
Adjust float height.
CHASSIS
Complaint Symptom and possible causes Remedy
Steering is heavy. 1. Overtightened steering stem nut.
2. Broken bearing/race in steering stem.
3. Distorted steering stem.
4. Low tire pressure.
Adjust.
Replace.
Replace.
Regulate.
Handlebar wobbles.
1. Loss of balance between right and left front forks.
2. Distorted front fork.
3. Distorted front axle.
4. Twisted tire.
Adjust or replace.
Repair or replace.
Replace.
Replace.
Front wheel wobbles.
1. Distorted wheel rim.
2. Worn front wheel bearing.
3. Defective or incorrect tire.
4. Loose front axle nut.
5. Loose front axle pinch bolt.
6. Incorrect fork oil level.
Replace.
Replace.
Replace.
Tighten.
Tighten.
Adjust.
To Next Page
Loading...
Need help?
General
