1986-1987 Honda Fortrax TRX70 Service Manual, Page 147Get this manual
TROUBLESHOOTING
ENGINE LACKS POWER
ProbalbM
1Raise wheels off ground and spin by hand
WHEELS 00 NOT SP1N
(1) Brake dragging
WHEELS SPIN FREELY
2 Check tire pressure with the gauge
(21 Worn or damaged wheel bearing (31 Wheel bearing needs lubrication 141 Drive chain too tight
PRESSURE TOO lOW
- (1) Punctured tire (21 Faulty tire valve
PRESSURE NORMAL
3 Check clutch slipping
CLUTCH SUPS
m Weak clutch spring
4 Ughtly accelerate engine
ENGINE SPEED INCREASED
(21 Worn clutch discplate (31 Warped lutch discplate
ENGINE SPEED NOT INCREASED SUFFICIENTLY
5Check ignition timing