2005-2011 Honda FourTrax Foreman TRX500 FE/FPE/FM/FPM/TM Service Manual, Page 542Get this manual
26TROUBLESHOOTING
ENGINE DOES NOT START OR IS HARD TO START 26-2 ENGINE LACKS POWER 26-3
POOR PERFORMANCE AT LOW AND IDLE SPEED 26-5 POOR PERFORMANCE AT HIGH SPEED 26-6 POOR HANDLING 26-6