1985-1987 Honda TRX 250 Fourtrax 250 Service Manual, Page 231Get this manual
TROUBLESHOOTING
ENGINE LACKS POWER
Probab le Causa 1Raise wheels off ground and spin by hand
WHEEL SPINS FREELY
WHEEL DOES NOT SPIN -_ (11 Brake dragging FREELY (2) Worn or damaged wheel bearing (31 Wheel bearing needs lubrication (4Faulty final gear
2Check tire pressure with the gauge
PRESSURE TOO lOW11) Punctured tire 121 Faulty tire valve
PRESSURE NORMAL Check clutch slipping
CLUTCH SLIPS- -_ 1} Weak clutch spring
(2( Worn clutch disc lplate [3( Warped clutch disc plate
4 lightly accelerate engine
ENGINE SPEED INCREASED
5 Check ignition timing
ENGINE SPEED NOT-_ (1) Fuel air mixture oo rich or lean [2( Clogged air cleaner INCREASED SUFFICIENTLY [3( Restricted fuel flow vent (4( Clogged fuel tank cap breather hole (5( Clogged muffler