[TRX450Rider]

what size jet should i use with a Yoshimura Comp Series Full System Exhaust, K&N air filter with no air box cover?

 

[TRX450rlude]

Originally posted by TRX450Rider@May 10 2004, 02:39 PM
what size jet should i use with a Yoshimura Comp Series Full System Exhaust, K&N air filter with no air box cover?

190. or 195. and 2.5 turns out on the air screw...I would try the 195 first..people say the 190 might be a little lean.... B)

 

[TRX450rlude]

Ohh...and make sure you get the prefilter for that K&N...its a must have with no air box lid.

 

[04450]

trx450rider, what elevation are you riding at? did you get a dyno sheet w/ your pipe? i have the tri-oval system

 

[holeshot13]

You have any pics of your Comp system , does the head pipe look like the one theat comes with the tri oval system? How does it seem to perform? Thanks

 

[meanrhino]

if you are two or more turns out on your air screw it is time for a bigger secondary jet


just words from a small engine mechanic

 

[sethg]

Yah more than 2-1/2, get a new pilot jet.

 

[lukester720]

actually, don't go over 4 turns out from the stop, anything after 4 will not do anything for you. i checked this with Curtis Sparks, if you don't believe me give him a call. B)

 

[TRX450rlude]

Originally posted by lukester720@May 10 2004, 11:39 PM
actually, don't go over 4 turns out from the stop, anything after 4 will not do anything for you. i checked this with Curtis Sparks, if you don't believe me give him a call. B)

Lukester, you are right.....you do not change jetting at only 2.5 turns out....thats rediculas.....

 

[fast]

can you guys tell us if the yosh. pipe is any good

 

[TRX450rlude]

Originally posted by fast@May 11 2004, 08:18 AM
can you guys tell us if the yosh. pipe is any good

I think it would be impossible for Yoshi to make a crappy pipe.....Yoshi makes damn good products, however they are more for Suzuki or Kawasaki.....However anything they make is good.....

 

[TRX450Rider]

thanks for all your imput! I have not got my yosh system yet but i will oder it online i just wanted to know the jetting so i can have it all ready. thanks again

 

[lukester720]

You should ask them the jetting when you order. They should be able to give you at least a ballpark figure. Around 190 sounds about right though.

 

[TRX450Rider]

Cool, Thanks

 

[holeshot13]

I just did mine yesterday I put in the 195 main 2.5 turns out on the air screw. It runs great but I might try to go up to a 200 main. I'm also running a K&N with no lid

 

[holeshot13]

If you don't have the HRC needle I think you will have to move the clip on your needle down a notch

 

[04450]

holeshot13, what elevation are you at?

 

[holeshot13]

I'm not exactly sur but I woul say between 500-800 feet above sea level

 

[oz450r]

i run a 200 with the sparks system,filter and no lid