
4-2
2005 Buell P3: Fuel System
Table 4-4. Fuel System Troubleshooting
OVERFLOW TROUBLESHOOTING
Check for:
1.
Restricted fuel tank vent system.
2.
Loose float bowl screws.
3.
Damaged float bowl o-ring.
4.
Damaged or leaking float assembly.
5.
Particle contamination in fuel inlet fitting cavity.
6.
Worn or dirty inlet valve or seat.
7.
Improper fuel level in float bowl.
Remedy:
1.
Correct restricted hose. Replace vapor vent valve.
2.
Tighten screws.
3.
Replace o-ring.
4.
Replace float assembly.
5.
Clean and clear cavity and fuel supply tract.
6.
Clean or replace valve and clean seat.
7.
Adjust float tab for correct fuel level.
POOR IDLING
Check for:
1.
Idle speed improperly adjusted.
2.
Inlet system air leak (faster idling).
3.
Loose low speed jet.
4.
Contaminated or plugged low speed system.
5.
Enrichener valve not seated or leaking.
Remedy:
1.
Adjust operating idle speed.
2.
Correct as required.
3.
Tighten jet.
4.
Clean, clear and correct as required.
5.
Adjust, clean or replace.
POOR FUEL ECONOMY
Check for:
1.
Enrichener valve not seated or leaking.
2.
Dirty air cleaner filter element.
3.
Restricted fuel tank vent system.
4.
High speed riding style.
5.
Idle speed improperly adjusted.
6.
Loose jets.
7.
Fuel level too high.
8.
Plugged or restricted bowl vent.
9.
Worn or damaged needle or needle jet.
10. Vacuum piston assembly malfunction.
11. Plugged air jets or passages.
Remedy:
1.
Clean or replace.
2.
Replace as required.
3.
Correct restricted hose. Replace vapor vent valve.
4.
Modify riding habits.
5.
Adjust operating idle speed.
6.
Tighten jets.
7.
Adjust float tab for correct fuel level.
8.
Clean and clear passages.
9.
Replace needle or needle jet.
10. See
11. Clean, clear and correct as required.
POOR ACCELERATION
Check for:
1.
Throttle cables misaligned.
2.
Inlet system air leak.
3.
Restricted fuel tank vent system.
4.
Restricted fuel supply passages.
5.
Plugged bowl vent or overflow.
6.
Enrichener valve not seated or leaking.
7.
Worn or damaged needle or needle jet.
8.
Vacuum piston malfunction.
9.
Plugged jets or passages.
10. Fuel level too low.
Remedy:
1.
Adjust throttle cables.
2.
Correct as required.
3.
Correct restricted hose. Replace vapor vent valve.
4.
Correct and clear restriction.
5.
Clean and clear passages.
6.
Adjust, clean or replace.
7.
Replace assembly.
8.
9.
Clean and clear as required.
10. Adjust float tab for correct fuel level.
Summary of Contents for 2005 P3
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