Fuel and exhaust system malfunctions

Excessive fuel consumption

• Air filter element dirty or clogged (Section 1).
• Carburetor misadjusted or worn (Section 1 or 4).
• Throttle not adjusted correctly or stuck (Section 4).
• Incorrect ignition timing (Section 1).
• Weakly inflated tires (Section 1).

Fuel leak and/or fuel smell

• Damaged or corroded fuel tank, pipes or connections (Section 1).
• Carburetor float chamber flooding (Section 4).

Excessive noise or smoky exhaust

• Leak at exhaust or manifold connections (Section 1 or 4).
• Rusted or damaged mufflers or exhaust pipe (Section 1).
• Broken mounting brackets (Section 1).