1998-2001 Honda Fourtrax Foreman TRX450S, TRX450ES Factory Service Manual, Page 348Get this manual
18I'G NITION SYSTEM SYSTEM DIAGRAM SERVICE TROUB,L ESHOOTING 18-0 18-1 IGNITION COI'L 18-7
IGNITION PULSE GENERATOR
IGNITI ON TIMING I
IGNITION SYSTEM INSPECTION
SERVICE INFORMATION'
GENERAL
"the engine' must be'runn;ng to do stJme work, makewr6' the area is well-ventilatedlVever run the engine in an enclosed areaThe exba,u st contains poisonous caro,on monoxide gas that may cause loss of consciousness and may lead to deathRun the engine in an open area or with an eJthaust evacuation system in an enclosed'areaCAUTION:
Some electrlcalr:ompcmenfs may be damaged if terminals or connectors are connecfed or disconnected while' the ;gniticm switch Is ON and curreM is present'When 513rvicing the igniHon systemalways follow the steps in he troubleshooting sequ ence p.a gelS-3'The ignHion tim ing does not normally need to be adjusted since thelgnitlon Control Module (leM) is factory preset The fCM may be damaged if droppedAlso if the ,connector is diisconnected when curre nt is lowingthe excessi,ve voltage m.ay damage the moduleAlways turn off the engj:ne stop switch before servicin faulty gnition system is often re lated to poor con nectionsCheck those connections before proceeding Use spark plug of he correct heat rangeUsing spark plug with an incorrect heat range can damage the engine