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View Full Version : What Jet


jeremyj
06-19-2009, 07:56 PM
If i get a lexx exhaust and k&n. What stage jet kit do i need to have. Do i need a stage 1 for just a exhaust or 2 cause i have no clue
Nick24
06-19-2009, 08:56 PM
I have the lexx mxe slip on. Then i took the airbox lid off, but i didn't get the k&n because i would have had to get the outerware for it. It did a lot for the power. I run a 150 main jet and a 25 pilot jet. I thing the main you could go a little bigger on though.

Hope this helps ya out!
twincat800
06-20-2009, 03:06 PM
get a 155 main and 25 pilot, and see how that works. as far as i know thats what you need, if not very close to it.
jeremyj
06-23-2009, 01:04 PM
Thanks guys, now for the pilot jet doesnt come in the dynojet kit. Only main jets come in there. Where do i get the pilot jet kit at. What is the best jet kit to get and where do i get it at
Nick24
06-23-2009, 03:26 PM
i got mine at my local kawasaki dealer about three bucks is wat i got mine for
cataway
06-23-2009, 03:48 PM
those bigger jet sizes are really only true if your taking off the air box lid.
if you will as well get a ex boot theres about 2hp to be had, and its a rather cheep mod to do
jeremyj
06-23-2009, 05:47 PM
All i want is to tune the lexx exhaust i dont have nothing else. i will keep the filter that i have right now. Where should i get the jet kit at online. I'm not taking off the lid or nothing like that. Just getting the lexx exhaust and that is it. Where should i buy the jet kit at is this the right kit right here


https://cart.jetkit.com/p-303-jet-kit-400-cc-kaw-03-04-kfx400.aspx
Blown 97 GT
06-23-2009, 10:32 PM
Originally posted by cataway
those bigger jet sizes are really only true if your taking off the air box lid.
if you will as well get a ex boot theres about 2hp to be had, and its a rather cheep mod to do

What is this "ex boot" you are referring to? Sorry, i'm new to 4 strokes and my Z.
cataway
06-24-2009, 05:35 AM
Originally posted by Blown 97 GT
What is this "ex boot" you are referring to? Sorry, i'm new to 4 strokes and my Z.
the EX boot mod is a air intake boot from a trx400ex, it gives a straighter shot for the air to get to the carb, its not a perfict fit but thats part of the mod.
http://i44.photobucket.com/albums/f9/cataway/9-21-2007LS027.jpg
this what it should look like .

the frount of the box has to be cut out and a plate screwed to the box and the hole for the air have to be raised and the boot has to be shortend , its all very easy. http://i44.photobucket.com/albums/f9/cataway/P1180021.jpg

better yet loose the air box , you then can get a better filter and even get better boots to chooose from.