Which Jets?

[BoisBlancBoy]

Hey hello everyone!  New guy here with some jet questions, which I think I pretty much have figured out already.

I have a 2005 Raptor 350.  Just bought a HMF Slip-on Exhaust and a Mod Quad K&N Intake/Filter, with outerwear and my elevation is 600-700ft.

Which jets am I going to need?

I have been told already that I will probably need a 155 mikuni Main Jet and a 25 Pilot jet.  I have also been told that I dont need pilot jets, but being knew to this aspect I am trying to get all the info possible cause I want to do it right the first time.


Thanks!  Great site!

[Flynbyu]

Welcome aboard.

Pilot jet controls fuel delivery to half throttle. Bumping the factory 22.5 to a 25 will help with low end.

I jetted my neighbor's bike like the settings I emailed you and it runs really well.

~Brian

[BoisBlancBoy]

Alright great!! Thanks for the info!

I found a site  jetsrus.com and they have some pretty good instrustion on jetting and tuning.  Also I plan on buying my jets from there, would you recommend that?

[Flynbyu]

Alright great!! Thanks for the info!

I found a site  jetsrus.com and they have some pretty good instrustion on jetting and tuning.  Also I plan on buying my jets from there, would you recommend that?

Your local dealer may have them. Be sure to check there first, you'll save on shipping. Total cost around $8.

~Brian

[BoisBlancBoy]

Thanks for the help!  Well I hope after all this I notice some difference!  I did get some Maxxis razrs too, thought it was time to upgrade my from stock dunlops!

[Flynbyu]

Thanks for the help!  Well I hope after all this I notice some difference!  I did get some Maxxis razrs too, thought it was time to upgrade my from stock dunlops!

Another mod you may try is drop a tooth on the front sprocket.

It will give it a bit of low end power!

~Brian

[BoisBlancBoy]

Yeah I was thinking of doing that.  I want to test out the difference with the exhaust and intake first.  If I do that I am hoping for some decent power to get up for wheelies a bit better, its gotta help I would think.

[Flynbyu]

Yeah I was thinking of doing that.  I want to test out the difference with the exhaust and intake first.  If I do that I am hoping for some decent power to get up for wheelies a bit better, its gotta help I would think.

The sprocket will make a huge difference. For $20, you can't beat it!

~Brian

[BoisBlancBoy]

Besides a dealer, where online can I get sprockets?

[Colorado700R]

http://www.rockymountainatv.com/home.do   

[BoisBlancBoy]

Anyone happen to know what you actually loose for top end going down to a 12T?

[Flynbyu]

Yes, you'll loose a little top end.

~Brian

[BoisBlancBoy]

   I know I will loose some top end, I was wondering if anyone knows how many mph's I will loose?

[Flynbyu]

  I know I will loose some top end, I was wondering if anyone knows how many mph's I will loose?

Approximately 3mph.

~Brian

[BoisBlancBoy]

Oh big deal!!  Well even if I dont like it, easy enough to change back at that price!