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  1. Honda TRX
    Does anyone have recommendations on what main jet and pilot jet I should use on my 05 400ex. This is my first quad and doing research on what other people are running on their pilot and main jet is confusing to me due to people running a range from 170 to 185. It is running 416 big bore kit...
  2. Repair & Maintenance
    ‘00 TRX400EX cannot figure out what the carb’s issue is. Cleaned thoroughly, tried moving jet needle position, adjusting pilot, etc... Upon starting, take off is rough. Cutting in and out, until second gear; then it’s actually able to get gas~then in third, it’s fine. Smooth and not temperamental🙄
  3. Honda TRX
    I have a 2000 trx400ex; the carb needle seems to need adjusting but, there’s only one position on the needle sooo.. any thoughts/suggestions? Bogging down, coming downhill and while level but, not going uphill. Help 😭 please and thank you.
  4. Repair & Maintenance
    Hi I have a 400ex that I recently put a 2005 450r carb on. It runs good awesome throttle response and power but I have one problem. At wide open throttle it pulls hard almost all the way to the rev limiter but when it's almost there it dies and is really hard to start again. It runs good for...
  5. Repair & Maintenance
    Hi I have a 400ex that I recently put a 2005 450r carb on. It runs good awesome throttle response and power but I have one problem. At wide open throttle it pulls hard almost all the way to the rev limiter but when it's almost there it dies and is really hard to start again. It runs good for...
  6. Honda FourTrax
    Hi all. Newbie here to the forum and ATVs in general. I just picked up a 86 TRX350 barn-find that last ran 6 years ago or there about. Replaced the battery, cleaned/re-gapped the plug and drained the old gas for new. She fired up almost immediately. The mechanics appear to be sound but the...
  7. Honda TRX
    I have a 2002 400ex bored to 416 with stage 2 hotcam, ECO Big Gun exhaust, stock carb, and stock intake. I was wondering if I should get bigger jets and open my intake some more. It runs good now, a little rich but I was looking for more power if I could. I don’t have much knowledge on intake...
  8. Honda TRX
    Hello all. New person here. I have a 2008 400ex that I recently put an hmf slip on exhaust on along with a uni air filter and removed the airbox lid and snorkel. Hmf recommended a 42 pilot jet and 175-180 main jet with this set up. After installing a 42 pilot and 180 main I adjusted the mixture...
  9. Repair & Maintenance
    Ok, I have a 1991 honda 250x, and i have a cobra megaphone exhaust pipe on it, with a k&N air filter, and it has stock jets in the carb. Now i was wondering what kind of jets to run with it because of the pipe and air filter. And also, it is running rich with th stock jets too...
  10. Performance Modifications
    Alright i got my 300ex going a running good finally and i figured i would have to rejet so my brother had the stock jet out of his 400ex a 148 so just for kicks i put it in just to see how far off it would be. I did a plug check and its not far off. I have good throttle response good when i...
  11. Performance Modifications
    I got a 1996 300ex with a k&n w/ outerware and removed airbox lid and a hmf slip on with stock head pipe. Really no other performance mods but i got a 40 pilot with a 130 main in it does that sound correct? Cuz i tryed 2 do a spark plug check but its freezing cold here and almost 2 feet of snow...
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