KYMCO MXU 300 -, User Manual

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5
. FUEL SYSTEM
5-3
MXU 300/250
TROUBLESHOOTING
Engine cranks but won’t start Engine lacks power
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No fuel in tank
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Clogged air cleaner
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No fuel to carburetor
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Faulty carburetor
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Cylinder flooded with fuel
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Faulty ignition system
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No spark at plug
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Clogged air cleaner Lean mixture
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Intake air leak
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Clogged carburetor fuel jets
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Improper throttle operation
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Float level too low
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Intake air leak
Engine idles roughly, stalls or runs poorly
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Clogged fuel tank cap breather hole
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Excessively used choke
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Kinked or restricted fuel line
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Ignition malfunction
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Faulty carburetor Rich mixture
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Poor quality fuel
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Float level too high
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Lean or rich mixture
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Clogged air jets
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Incorrect idle speed
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Clogged air cleaner
Misfiring during acceleration
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Faulty ignition system
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Faulty carburetor
Backfiring at deceleration
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Float level too low
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Incorrectly adjusted carburetor
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Faulty exhaust muffler