2006 Honda TRX680 Rincon Factory Service Manual, Page 522Get this manual

2006 Honda TRX680 Rincon Factory Service Manual, Page 522

IGNITION SYSTEM
IGNITION TIMING
Remove the right side cover (page 3-6)Start the engine and warm it up to operating temperatureStop the engine and remove the timing hole cap from the rear crankcase cover
Connect the timing light and tachometerStart the engine, let it idle and check the ignition timing
TIMING LIGHT I