TGB Blade 250 ATV Quad Service Repair Manual, Page 48Get this manual
4FUEL SYSTEM Trouble Diagnosis
Poor engine start No fuel in fuel tank Clogged fuel tube Too much fuel in cylinder No spark from spark plug(malfunction of ignition systemClogged air cleaner Malfunction of carburetor chock Malfunction of throttle operation Mixture too lean
Clogged fuel injector Vacuum piston stick and closed Malfunction of float valve Fuel level too low in float chamber Clogged fuel tank cap vent Clogged fuel filter Obstructed fuel pipe Clogged air vent hose Air existing in intake system
Stall after started
Malfunction of carburetor chock Incorrect ignition timing Malfunction of carburetor Dirty engine oil Air existing in intake system Incorrect idle speed