Linhai ATV300-D T3b Owner's/Operator's Manual page 121

Carburetor
Deteriorated fuel or fuel containing Clogged air cleaner
Water or foreign material
Clogged pilot jet
Clogged air passage
Improperly set pilot air s crew
Clogged pilot air passage
Improperly sealed valve seat
Improperly adjusted fuel level
Clogged starter jet
Sucked-in air
COMPRESSION SYSTEM
Cylinder and cylinder head
Loose spark plug
valve
Loose cylinder head
Broken cylinder head gasket
Broken cylinder gasket
Worn, damaged or seized cylinder
Piston and Piston ring
Worn piston
Worn fatigued or broken piston ring Seized valve
Seized piston ring
Seized or damaged piston
17. TROUBLE SHOOTING
IGNTION SYSTEM
Battery
Improperly charged battery
Faulty battery
Fuse
Burnt out, improper connection
Spark plug
Improper plug gap
Worn electrodes
Wire between terminals broken
Improper heat range
Faulty spark plug cap
Ignition coil
OWNER'S/OPERATOR'S MANUAL
ATV300-D T3b
- 117 -
Air cleaner
element
Improper air cleaner
setting
Valve system
Improperly adjusted
clearance
Improperly sealed valve
Improperly contacted
valve and vale seat
Improper valve timing
Broken valve spring
Ignition system
Faulty ignitor unit
Faulty pick up coil
Broken magneto
woodruff key
Switch
Faulty main switch
Faulty ―ENGINE STOP‖
switch
Faulty brake switch
Wiring
Loose battery terminal
16.0