Honda ATV Forum banner

ignition coil test

  1. Honda TRX
    How do I test the ignition coil on a 2008 400ex? Just bought one and it's running terrible.. starts up good but when I give it throttle it bogs out bad.. Cleaned the carburetor, the pilot jet was clogged so I replaced it, still bogging down.. It ran for a couple minutes really good then started...