2001-2003 Honda TRX500FA Factory Service Manual, Page 403Get this manual
TROUBLESHOOTING
ENGINE LACKS POWER
Possibl cause
1Raise wheel off th ground and spin by-Wheel do es not spin free ly-o Brake dra gging Worn dam aged axle wheel hand
bearings Wheel spins freely
2Check tire press ure-Pressure low
Pre ssure nor mal
Faulty ti re alve Punct ured tire
3Accelerat lig htly-Eng ine speed does not in cre ase - Fuela ir mi xture too ri ch or learn Clogged air cl eaner Restricted fue flow Eng ine spe ed increase Clog ged mu ff ler Rest ricted fuel tan br eath er tube
4Check ignitio timing- Incorrect-Fau lty eng ine con trol module (ECMI Faulty ignition pulse gen erator
Cor rect
5Test cy linder compression- -ow compression