Well I just bought a Raptor I am putting a complete yoshimura exhaust system on it, a Dyno Jet Kit, I have a K&N Filter with the lid all cut open. I ride the Oregon Sand Dunes. Any help would be great, should I go up on my Pilot's, what position on the needle's and what size main jets.
THANKS

 

I have a question also my raptor sputters when just cruising at low speeds about 1/4 throttle but when i open her up she runs like a champ, any suggestions [img]i/expressions/face-icon-small-mad.gif[/img]

 

did you change your pilots, if not you might want to go up a size, if you did change them, then maybee go back down one size!

 

rc3, look at my signature, mine runs strong with no hesitation. Im about 1000ft.

 

and i have stock pilots with 3 turns out on the mixture screws

 

If you look at the Dynojet instructions it says the kit is designed to use the stock pilots, so I did.

However, I too have the burbling problem if I'm putting around at less than 1/4 throttle for a while.
I'm going to try turning the Air corrections a bit too see if it clears up.

 

I also have the same settings as you do.
'01 raptor
Full comp CRD
K&N no snorkel 148/150 DJ
stock pilots

I ride at sea level.
I am going to 150/155 main. What do you think and what should i change ? Should i change the pilots ? Should i take the lid off ?


Thanks

 

can anyone tell me what size of mikuni jets to use .03 raptor full fmf titanium w/powerbomb header,airbox mods,ngk platinum. thanks

 

What about the needle position, I bought the Dyno Jet kit, it says the fourth clip down, but it does not talk about running with your lid off. Thanks for all of your help

 

needles in third from top. Good luck