Honda ATV Forum banner

motor

  1. Changed 400ex head gasket and motor blew

    Repair & Maintenance
    Needed some thoughts I just changed the head gasket on my 2000 400ex and on my test drive just now the motor locked up and refuses to even turn over,the noise it made sounded liked the cam chain got loose or something. I'm new to this so this was my first go at taking a motor apart. I watched a...
  2. Rebuilding my 300ex need advice

    Repair & Maintenance
    Ok so im rebuilding my 300ex and i need some advice. Basically i wanna know how hard it would be to make it as fast as say a stock 400ex. Or if i would be better off parting out what i got and saving for a 400? I got alot of money in it already and i would rather build it and make it everything...
  3. 300ex oil pump?

    Repair & Maintenance
    Ok heres the deal i put a stage 2 webcam and hardened rockers in my 300ex and i went riding 2 day or at least tryed. Got aboult a mile away from where we parked the trucks and it started to lose power going down the road then i gave it more gas and it stalled. It starts right up idles fine but...
Top