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  1. Repair & Maintenance
    Hey, decided to start this cause these forums helped me along the way on my rebuild. I just rebuilt the top end on my 400ex and it runs a ton better now, only problem is that it’s smoking from the exhaust port on the new head I replaced. I’m thinking it’s because of the old crushed exhaust rings...
  2. ATV General Discussion
    I picked up a 2001 400ex a while ago and I was told it was completely stock, I put a big gun muffler on it and rejetted it. Recently it started to burn some oil so I decided to take it apart to rebuild it and I found out it had a Webcam 450/451 cam in it and everything else is stock I was...
  3. ATVs For Sale
    2001 Honda 400EX On Ebay Price: $3,499.00
  4. ATV General Discussion
    hey everyone, new to riding ATV's & i recently just bought a 2000 Honda 400ex with a twist throttle which i thought would be easy & way better than the thumb, but im way wrong is not really safe for new drivers, literally got my hands twisting while turning and i almost crashed about 10x even...
1-4 of 4 Results