Arctic Cat DVX 250 2007, Service Manual

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11-5
11
Drive
Fuel System
Problem: Power not transmitted from engine to wheels
Condition Remedy
1. Rear axle shaft serration worn - broken 1. Replace shaft
Problem: Starting impaired
Condition Remedy
1. Starter jet obstructed 1. Clean jet
2. Starter jet passage obstructed 2. Clean passage
3. Starter body - carburetor leaking air 3. Tighten - adjust - replace gasket
4. Starter valve not operating properly 4. Check - adjust valve
Problem: Idling or low speed impaired
Condition Remedy
1. Slow jet obstructed - loose 1. Clean - tighten jet
2. Slow jet outlet obstructed 2. Clean outlet
3. Low speed fuel screw setting incorrect 3. Adjust screw
4. Starter valve not fully closed 4. Adjust valve
5. Float height incorrect 5. Adjust float height
Problem: Medium or high speed impaired
Condition Remedy
1. High RPM “cut out” against RPM limiter 1. Shift into higher gear - decrease RPM speed
2. Main jet obstructed 2. Clean main jet
3. Needle jet obstructed 3. Clean needle jet
4. Throttle vacuum piston not operating properly 4. Check piston operation
5. Filter obstructed 5. Clean filter
6. Float height incorrect 6. Adjust float height
7. Starter valve not fully closed 7. Adjust valve
Problem: Overflow and fuel level fluctuations
Condition Remedy
1. Float valve worn - damaged 1. Replace valve
2. Float valve spring broken 2. Replace spring
3. Float not working properly 3. Adjust float height - replace float
4. Float valve dirty 4. Clean valve
5. Float height too high - too low 5. Adjust float height
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