DAELIM S4 50cc, Руководство по обслуживанию

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FUEL SYSTEM
TROUBLESHOOTING
The vehicle does not start.
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No gasoline in fuel tank.
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Fuel is not coming out of carburetor.
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Too much fuel is flowing into cylinder.
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No spark emitted from spark plug.
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Air cleaner is blocked.
Idle is unstable and engine turns off after starting.
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Idle is adjusted improperly.
● Air/fuel mixture is either too lean or rich.
● Air cleaner is blocked.
● Suction system is experiencing secondary intake of air.
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Fuel system is blocked.
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Auto bystarter is damaged.
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Ignition system is damaged.
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Using low quality gasoline.
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Air screw is adjusted improperly.
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Carburetor is blocked.
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Compression pressure is low.
Miss-fire at speeding.
● Ignition system is damaged.
● Mixture is too lean.
Back firing
● Ignition system is damaged or works improperly.
● Mixture is too lean.
Insufficient power and high fuel consumption.
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Air cleaner is blocked.
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Ignition system is damaged.
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Mixture is too rich.
Air/Fuel mixture is extremely lean
● Jets of carburetor are blocked.
● Bad ventilation of air in tank cap.
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Fuel strainer screen is blocked.
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Fuel tube is bent, creased or blocked.
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Float valve is working badly.
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Oil level is low.
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Suction system is receiving secondary suction of air.
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Output capacity of fuel pump is insufficient..
Air/Fuel mixture is extremely rich.
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Float valve is damaged.
● Air jets are blocked.
● Oil level is too high.
● Auto bystarter is damaged.
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Air cleaner is blocked.