Hey everyone, just picked up a super clean 2005 Trx 400EX, bone stock. I added the nerfs, ims pegs, and uni filter as well. Additionally, I purchased an HMF slip-on, dynojet kit, and EHS racing lid.

Here's the question: Essentially, I will be jetting the main with most likely a 165 and start from there because the EHS lid simulates an open air box, will I have to replace the stock needle? From what I understand the 2005+ have some differences in the carb from previous years (99-04) - like a non-adjustable needle. Anybody have a similar setup to perharps guide me in the right direction? FYI - I'll be sea level-1500ft max

Thanks!

- Lou

 

I have a 2005 and yes you have to get a new needle i got the fmf jet kit and the new needle came with it.

 

The dynojet kit should have or come with every thing you will need.

 

Thanks guys, the Dynojet kit came with the tool for 05+ carbs and the needle.

...Now, to find a place to rip.. Everywhere else > NJ

 

I have an 05 also. I bought it used. It was super clean and bone stock. I added HMF sport series full exhaust k&n, Power Lid and Dynojet kit. I'm @ 600 ft mine runs best with 155 jet. Anything bigger it wanted to flood.