Electrical System Troubleshooting; No Spark At Plug - Honda 2010 CRF250R Service Manual

ELECTRICAL SYSTEM
TROUBLESHOOTING
Inspect the following before diagnosing the system.
- Faulty spark plug
- Loose spark plug cap or spark plug wire connection
- Water gal into the spark plug cap (affecting the ignition coil secondary voltage)
If there Is no spark al cylinder, temporarily exchange the ignition coli with a known good one, and perform the spark test. If there
is spark. the original ignition coil Is faulty.
- Initial voltage" of the ignition primary coil is the battery voltage with the 12 V battery connected and the "ECM" selector switch is
ON . (The engine in not cranked by the kickstarter.)
No spark at plug
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