2005-2011 Honda FourTrax Foreman TRX500 FE/FPE/FM/FPM/TM Service Manual, Page 412Get this manual

IGNITION SYSTEM
TROUBLESHOOTING
Inspect the following before diagnosing the system- Faulty spark plugLoose spark plug cap or spark plug wire connectionsWater got into the spark plug cap (Leaking the ignition coil secondary voltage)
NO SPARK AT SPARK PLUG

UNUSUAL CONOmON

Ignition coil primary

low peak voltage

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives