Linhai LH400ATV-2B Owner's/Operator's Manual page 99

17. TROUBLESHOOTING
Ignition system Cooling system
Improperly spark plug gap Faulty thermostat
Improper spark plug heat rang Faulty thermo switch
Faulty igniter unit
Fuel system
Improper carburetor setting
Improper fuel level adjustment
Clogged air cleaner element
Compression system
Heavy carbon deposit build-up
Improperly adjusted valve timing
Improperly adjusted valve clearance
Engine oil
Incorrect engine oil level
Improper engine oil quality (High viscosity)
Low engine oil quality
Brakes
Dragging brake
Cooling system
Inoperative fan motor
Faulty thermostat
Faulty thermo switch
Incorrect coolant level (low coolant level)
Faulty radiator (Clogged, damage)
Faulty radiator cap
Impeller shaft gear malfunction (bent dowel pin, gear)
Damaged impeller shaft
Disconnected fan motor connector
FAULTY CLUTCH
17-6