DAELIM BESDI 125 - SERVICE, Service Manual

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5-2
FUEL SYSTEM
TROUBLESHOOTING
The vehicle does not start.
No gasoline in fuel tank.
Fuel is not coming out of carburetor.
Too much fuel is flowing into cylinder.
No spark emitted from spark plug.
Air cleaner is blocked.
Suction system is experiencing secondary intake of air.
Using low quality gasoline.
Starter is damaged.
Throttle cable is working improperly.
Fuel tank is functioning improperly.
Idle is unstable and engine turns off after starting.
Starter is damaged.
Ignition system is damaged.
Using low quality gasoline.
Suction system is experiencing secondary intake of air.
Idle is adjusted improperly.
Air screw is adjusted improperly.
Compression pressure is low.
Air/Fuel mixture is either too lean or rich.
Carburetor is blocked.
Mis-firing occurs when driving at high speeds.
Ignition system is damaged.
Mixture is too lean.
Back firing
Ignition system is damaged.
Mixture is too lean.
Insufficient power and high fuel consumption.
Air cleaner is blocked.
Ignition system is damaged.
Mixture is too rich.
Air/Fuel mixture is extremely lean
Fuel jet is blocked.
Float valve is damaged.
Oil level is low.
Bad ventilation of air in tank cap.
Fuel strainer screen is blocked.
Fuel tube is bent, creased or blocked.
Suction system is receiving secondary suction of air.
Air/Fuel mixture is extremely rich.
Air jet is blocked.
Float valve is damaged.
Oil level is too high.
Starter is damaged.
Air cleaner is blocked.