1993-2000 Honda TRX300EX Service Manual, Page 175Get this manual
Ignition System Measure the secondary resistance between the plug cap and Green terminalStandard- Q
If the resistance is out of range, remove the spark plug cap and measure the secondary coil resistance between the spark plug wire and Green terminalStandard2.53.5 Q
Removal
Remove the fue tank (page 2-10), Disconnect the spark plug cap from the spark plugDisconnect the BlackYellow wire connector from the black terminal of the ignition coil and Green re connector from the green terminalRemove the mounting bolt, ground terminal and ignition coilInstallation is in the reverse order of removal