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400 ex
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  1. Engine/EFI/Drivetrain
    I have a 2003 400ex (only owner). I had a problem with my transmission, when in 3rd gear transmission slipped and was it was hard to change gear after. I put a brand new clutch, I disassembled everything and I placed new forks, made sure i could shift through all the gears (engine removed) and...
  2. Body/Controls/Protection
    Je roule avec tout est beau et quand je veux faire du top speed il arrêt et il est dure a repartir de la suit j'ai besoin d'aide
  3. TRX General Discussions
    hey guys, I have a slip on yoshi for my 400ex but I’m not to happy with it. I’m looking into getting a new exhaust and I heard about the rossiers and the empires I love the looks of both but I’m mainly looking for power and sound! Any one who has tried both or knows anything about them that...
  4. Maintenance / Important Information
    Hi everyone, I’m new to the 400ec forums, and I have a few questions. I bought a 2003 400ex about 2 months ago. Never had one but I’m a big Honda guy and have ridden a few. The guy didn’t know too much about it, all he knew was it got bored to a 440. It ran great up until a week or so. I was...
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