Compression System; Ignition System - Coleman POWERSPORTS AT125-B Manual

COMPRESSION SYSTEM

Cylinder and cylinder head
·Loose spark plug
·Loose cylinder head
·Broken cylinder head gasket
·Broken cylinder gasket
·Worn, damaged or seized cylinder
Piston and cylinder head
·Worn piston
·Worn, fatigued or broken piston ring
·Seized piston ring
·Seized or damaged piston

IGNITION 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
·Broken or shorted primary/
secondary coil
·Faulty high tension cord
·Broken ignition coil body
Valve system
·Improperly adjusted valve
clearance
·Improperly sealed valve
·Improperly contacted
valve and valve seat
·Improper valve timing
·Broken valve spring
·Seized valve
Ignition system
·Faulty igniter unit
·Faulty pick up coil
·Broken magneto
woodruff key
Switch
·Faulty main switch
·Faulty "ENGINE STOP"
switch
·Faulty brake switch
Wiring
·Loose battery terminal
·Loose coupler connection
·Improperly grounded
·Broken wire harness
86