KEEWAY 500ATV - Carburetor

14. Troubl
eshooting
14-5
Complaint Symptom and Possible Causes Remedy
Difficulty
or locked
gearshift
1. Broken drive or driven bevel gear teeth
2. Distorted shift fork
3. Worn shift cam
4. Improper gearshift rod
Replace
Replace
Replace
Adjust
2. Carburetor
Complaint
Symptom and Possible Causes
Remedy
Starting Difficulty
1. Clogged
starter jet
2. Clogged starter jet passage
3. Air leakage from joint between starter body
and carburetor
4. Faulty starting plunger
Clean
Clean
Clean, adjust or replace
gasket
Adjust
Idling or
low-speed
trouble
1. Clogged
slow jet
2. Clogged slow jet passage
3. Clogged air intake
4. Clogged bypass port
5. Starter plunger not fully closed
6. Improper set of idle screw
7. Improper float height
Clean
Clean
Clean
Clean
Adjust
Adjust
Adjust
Medium or
high
speed trouble
1. Clogged main jet
2. Clogged main air jet
3. Clogged needle jet
4. Faulty throttle valve
5. Clogged fuel filter
6. Improper float height
7. Starter plunger not fully closed
Clean
Clean
Clean
Adjust
Clean
Adjust
Adjust
Overflow and fuel
level fluctuation
1. Worn
or damaged needle valve
2. Damaged needle valve spring
3. Improper working float
4. Foreign matter in needle valve
Replace
Replace
Adjust or Replace
Clean
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