Tomberlin CrossFire 150 - Battery Charging and Installation

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CARBURETOR TROUBLESHOOTING

RICH MIXTURE

Symptoms: Fouls spark plug, black exhaust smoke, rough idle, skipping, poor performance, bog, backﬁ re.

Possible causes:

• Air ﬁ lter dirty or plugged

• Air intake restricted

• Choke plunger stuck

• Float level to high

• Faulty ﬂ oat needle valve

• Loose jets

• Worn jet needle or needle jet

• Dirt in air passages

LEAN MIXTURE

Symptoms: Hard starting, popping through intake, low power, runs hot, detonation, surging, idle speed erratic.

Possible causes:

• No fuel in tank.

• Fuel tank not venting.

• Carburetor vent restricted.

• Clogged jets or air passage.

• Float level to high.

• Air ﬁ lter not sealing.

• Intake leaking.

• Air mixture screw adjustment.