Honda TRX ATV Forum banner

Discussions Showcase Albums Media Media Comments Tags Marketplace

1-17 of 17 Results
  1. Maintenance / Important Information
    Hi all! New to the forum and to the 400ex i recently bought a blown up 2003 Honda 400ex tore it down, split the case and found it needed a new engine. Found a good/used engine for it. I picked it up and upon pick up the guy said it has a 6 degree crank key. my question with everything torn...
  2. Maintenance / Important Information
    What’s up folks. I’m new to the forums & needed some help with jetting. I put a stage 2 Hotcams in it & a 10:1 Wiseco Piston ( New stock cylinder bore ) It’s got an HMF Performance tip. I’m currently running a bagged K&N Filter with the air box lid off & 2 Spal 4” fans on my oil cooler. I run...
  3. Engine/EFI/Drivetrain
    My 400ex would not shift properly and fall out of gear while riding. Took the clutch cover off and the piece in my picture was no longer touching the star piece. I need to know how it and the spring go back. Also should the star shaped piece be in a certain position when I connect the loose piece.
  4. Engine/EFI/Drivetrain
    I upgraded a trx400ex engine to the highest possible power output without a 460 kit. A complete Wiseco bottom end, 440 13:1 Wiseco top end, Advanced aluminum sleeve, ported polished head, Kibblewhite valve set with +1mm springs, stage 3 Hotcams cam, trx450r carb, 105 octane fuel, a CDI with the...
  5. 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...
  6. My ride

  7. TRX General Discussions
    Hello I just recently purchased a trx that needed new oil rings. I did a top end rebuild and got the quad put back together and now the engine won’t crank but the headlights will come on. No neutral light. It is a 2008. I believe my problem might be the cable that goes from the negative on the...
  8. Maintenance / Important Information
    Hi i have a 2005 honda trx400ex with a loud ticking noise. i did a valve adjustment and problem was still there. any advice on what to look at next. the motor is completely stock. i have done some research and found it could be different things causing the ticking. how am i able to tell if my...
  9. Maintenance / Important Information
    i bought a 2008 trx400ex a week ago it has a new 440cc big bore that the guy installed, i still have the stock bore which is in good condition and pistons. The upgrades i have are the big bore an hmf slip on and that all that i know of airbox is still on i dont know if the quad has been jetted i...
  10. Suspension/Steering/Chassis
    i recenlty bought a 2008 trx400ex the guy gave it to me with the grab bar not attached cause he didnt have the bolts but i noticed that there is no where to attach the grab bar that he bought it looks like every grab bar on ebay for a 400ex but where you attach the grab bar on my quad its just...
  11. Honda TRX News
    Flipped the ATV a few times and replaced the bars but wasn't happy. Also, flipped it again and bent the bats. Don't want to pay the OEM price. Saw these and it says they have the OEM bend. Has anyone tried them?
  12. TRX General Discussions
    hi I'm going to meet a guy soon to possibly trade my trx400ex which is 01 for an 01 xr400. Do you think this would be an even trade? On nada his bike has more value but what's your guys opinions?
  13. New Member Introductions
    Hello, i am from argentina and i got a trx 400x 2013 some days ago, i am looking for a system exhaust. I was told that the best one for this quad si the curtis spark. But i am not sure because i am new un this topic. I want your opinion and thanks for reading it!
  14. TRX General Discussions
    Hi all, Please bear with me, I'm trying to get back in to off roading. I'm usually in my Jeep, but looking for a quad now. Used to ride dirt bikes. I'm a bit older, so I'd really like an electric start, 4 stroke, and with reverse. A mechanic friend told me to stay away from all the years of...
  15. New Member Introductions
    Hello -- need some advice. I have a 2001 400ex and I'm looking at getting either the new TRX 400x or the 450r. I mainly ride on a private property that has quite a bit of open fields as well as trails. However, I do plan on using more the state parks and I'm debating which quad to buy. It looks...
  16. New Member Introductions
    this is the very trx70 i learned to ride on, the 250x i bought for my wife, the 250r i built up and a few days ago got me the 400ex for some trail riding. tell me what you think
1-17 of 17 Results