2006-2014 Honda FourTrax ATV TRX250 EX TRX250X Service Manual, Page 326Get this manual
IGNITION SYSTEM Install the ignition coil onto the frame by aligning the lug with the groove and tighten the boltInstall the seat (page 3-4)
IGNITION TIMING
Start the engine and warm it up to operating tem peratureStop the engine and remove the timing hole cap from the rear crankcase cover
Read the instructions for
Connect the timing light and tachometerStart the enginelet it idle and check the ignition timing IDLE SPEED: 1,400 100 rpm (min-')