2003 Honda ATV TRX650FA Rincon Factory Service Manual, Page 117Get this manual
FUEL SYSTEM St art the ngi ne nd warm it pAd just the idle speed at igh ltitud ith the throttl stop screw to ensu re ro pe high altitude operat io IDLE SPEED: 1,400 100 rpm
Sustained operation below 5.000 ft 11 ,500 m) with
the hig altitude setting may cause engine overheati ng and engi ne damageW he rid ing bel ow 5,000 ft (1,500 ml, read just he ca rbu reto follows: Screw ou he pilot screw the specif ied numbe of tu rns fr the high altit ude setti ng LOW ALTITUDE PILOT SCREW OPEN ING12 tum out fro he igh lt it ude setting Wa rm up th engine and adj ust he id le speed at low alt it ud ith th th ro ttle sto sc rew