1998-2001 Honda Fourtrax Foreman TRX450S, TRX450ES Factory Service Manual, Page 66Get this manual
MAINTENANCE
E' GINE IDLE SPEED N
If fhe engine musf be running to do some work, ma:b sure the area Is well ventilatedNever run dre engIne in an enco,s cd tueaThe exhaust t;oT7tains pofson,carbon monoxlds' 98$ tha't may cause Qu 10$S of conscio(Jsnesssna msy lead to death .Ru.n the engine in an op'en sres or with an exhaust evacuation sysfem In cnclosed areaNOTE:
Inspect and adj ust the idle speedfter al other engille maintenam:e items nave baen performed and are within speciflcaMns, The engine must be warm for accurate jd le speed illspection and adjustment
Warm up the engine foraboul ten minutesRemove the right lower side cover (page 2-3)Turn the throttle stop screw as req ujred tobtain the specifi ed idle speed"