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  1. Honda TRX
    Hi guys I have a 400ex 2001 and I have a problem. it makes a loud knocking when it moves forward no matter gear i am. As soon as i pull the clutch the sound disappears. the sound come from the front sprocket or in the transmission i dont know… I need help!! Thanks
  2. Performance Modifications
    Hello, I have a 2002 Honda 400ex and a 2007 Honda 450er, I thought it would be a fun idea to turbocharge one of the two. I'm curious about what I have to do in order for it to work and all the parts I need. Like if I need to run a fuel pump or an oil pump to the turbo, if I should do a...
  3. Honda FourTrax
    I had a 04 honda 400 ex just rebuilt the top end with a 440. I finally got it out the other day and it was ripping good. Then today I take it out and its running like complete crap. Ive changed the plug and no change along woth ignition coil. The quad has a hard time firing up as it just will...
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