1995-2004 Kawasaki Lakota 300, Lakota Sport, KEF300 Service Manual, Page 243Get this manual
APPEN DIX 15-5
Poor Running or No Power at High Speed:
Firing incorrect: Spark plug dirty, broken, or maladjusted Spark plug cap or spark plug lead trouble Spark plug cap shorted or not in good contact Spark plug incorrect Pickup coil trouble IC ignitor trouble Ignition coil trouble Fuelair mixture incorrect: Main jet clogged or wrong size Jet needle or needle jet worn Air jet clogged Bleed hole of air bleed pipe or needle jet clogged Fuel level too high or too low Air cleaner clogged, poorly sealed, or missing Starter plunger stuck open Water or foreign matter in fuel Carburetor holder loose Air cleaner duct loose Fuel tank air vent obstructed Fuel line clogged Fuel tap clogged Compression low: Spark plug loose Cylinder head not sufficiently tightened down No valve clearance Cylinder, piston worn Piston ring bad (worn, weak, broken, or sticking) Piston ringgroove clearance excessive Cylinder head gasket damaged Cylinder head warped Valve spring broken or weak Valve not seating properly (valve bent, worn, or carbon accumulation on the seating surface) Knocking: Carbon built up in combustion chamber Fuel poor quality or incorrect Spark plug incorrect IC igniter trouble Miscellaneous: Throttle valve won't fully open Vacuum piston doesn't slide smoothly Brake dragging Clutch slipping Overheating Engine oil level too high Engine oil viscosity too high