2012 Kawasaki KX65 Owners Manual - Page 107

TROUBLESHOOTING GUIDE 105 head warped • Cylinder Cylinder gasket damaged • Reed valve damaged • Poor low-speed performance Spark weak Spark plug dirty, broken, or gap improperly adjusted Spark plug cap or high-tension wiring defective Spark plug cap shorted or not contacting properly Spark plug type incorrect Igniter defective Ignition coil defective Stator damaged head warped • Cylinder Cylinder gasket damaged • Reed valve damaged • Other defective • Igniter Transmission oil viscosity too high • Brake dragging • Poor or no high-speed performance Firing incorrect Spark plug dirty, damaged, or gap improperly adjusted Spark plug cap or high-tension wiring defective Spark plug cap shorted or not contacting properly Spark plug type incorrect Igniter defective Ignition coil defective Stator damaged Fuel-air mixture incorrect adjusting screw improperly adjusted • Idling Pilot jet or air passage clogged • Air cleaner • installed element clogged, poorly sealed, or not plunger stuck open • Starter Carburetor fuel level too high or too low • Fuel tank air vent obstructed • Carburetor holder loose • Air intake duct loose • Compression low plug loose • Spark head insufficiently tightened • Cylinder nut loose • Cylinder Cylinder or piston worn • Piston ring worn, weak, broken, or sticking • Piston ring side clearance excessive • Cylinder head gasket damaged • j Fuel-air mixture incorrect jet clogged or wrong size • Main Jet needle or needle jet worn • Jet needle clip wrong position • Carburetor fuel in level too high or too low • Air jet or air passage clogged • Air cleaner element clogged, poorly sealed or not • installed plunger stuck open • Starter supply to carburetor insufficient • Fuel contaminated with water or foreign matter • Fuel Fuel tank air vent obstructed • Carburetor holder loose • Air intake duct loose •