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Just bought a new 07 450x whats the best jetting?
Posted: Thu Apr 24, 2008 3:00 pm
by jc5057
Okay I ride at sea level to 3000 feet.
Just want to open airbox up and keep stock exhaust.
What size main and slow jet?
Size needle and clip position?
Air srew adjustment?
Is it possible to get just the needle and 2 jets from my dealer to save some dough?
Other than that this is my first 4 stroke after riding a 2 smoke and I am lovin it.
Posted: Thu Apr 24, 2008 3:39 pm
by Skoot22
165 main jet
stock 45 pilot is fine
NCVS needle 3rd Pos. Part # NCVS 16233-MEN-671 its an option needle out of an 04R You can get it from your dealer.
Fuel screw out 2 turns
You will also want to open up your airbox. At a minimum cut the whole top off.
The smog pump will also need blocked off. Being your from Cali. I would do the JB weld
If you need pics of anything let me know. I probably have it.
Welcome to the site, there are a bunch of good guys in the 450X forum. Lots of info and people to ride with from Ca. What part of Cali are you from.
Posted: Thu Apr 24, 2008 4:13 pm
by bocephus450x
he's full of it ........ get a JD Kit
or the F2 kit I hear is the shiznit

Posted: Thu Apr 24, 2008 5:10 pm
by Asmith
bocephus450x wrote:he's full of it ........ get a JD Kit
or the F2 kit I hear is the shiznit

I'm gonna put together a jetting kit and market it myself.
It's gonna be called the JDF2 kit and it's gonna retail for $ 300.00.
It'll be 3 times better than the JD and twice as good as the F2.
Posted: Thu Apr 24, 2008 5:20 pm
by bocephus450x
gonna name the supersecret needle the "BugF*@#er"?
Posted: Thu Apr 24, 2008 5:35 pm
by Asmith
bocephus450x wrote:gonna name the supersecret needle the "BugF*@#er"?
How did you know???
Spying on me???
Posted: Thu Apr 24, 2008 5:36 pm
by bocephus450x
no.....thats what i'd name it and great minds think alike
