I am looking to put a mid pipe and powerbomb headers on my 01 Raptor, i already have the titianium 4 tail pipe, my question is will i have to Jet the carb. Thanks

 

try this it will work

Main Jet: 145 / 150
Pilot Jet: 22.5 / 22.5
Needle: STOCK
Needle Position: 3RD
Power Jet: N/A
Air Screw: N/A
Fuel Screw: 3
Remove airbox lid snorkel
The secondary carb. feeds two valves and uses the larger main jet

 

I'm running a Ct full exhaust and pro-flow intake k&n filter I have 20 disc in my CT and I run 170 left 175 right those are mikuni jets Needle is on 4 clip
I'm at 2500 feet elevation

 

It depends how your quad is feeling. If you feel its loosing power its probaly the jets. But sometimes a jet kit messes up your power even more, in my case. If you do rejet, dont go with K&N jet kit (dynojet).[img]i/expressions/face-icon-small-disgusted.gif[/img]

 

20 discs? I thought they only came with 16. Mine already sticks out way past the grab bar. Are you running the old ct with the chrome endcap, or the new one with the anodized black endcap?

 

Well, I think you'd definately have to rejet.

FMF should come with jetting suggestions, my friend listened to it without any problems.

Cut the rubber tabs inside of the snorkle if you run with your lid on. (I went without my snorkle all together even)
Dynojet carbs worked great for my quad, it has never pulled so hard and strong before since I've put them in.

 

My Ct had the Chrome cap but now has the super trapp style end cap with 20 disc's yes they do come with 16 then you buy extras cha ching $$

 

I might have to call ct and order some more then. Was there a performance difference b/w the 16 and 20? And did you have to rejet?

 

it wasnt bad with 16 as far as jetting . With the 20 it helped top end and brought my jetting back wear I wanted it .
Seems the 660 need all the top end it can get . I think you can get a disc pack from Knowles at CT for about 56.00 you get 16 so you will have extras .
Or check around some of the shops or speed shops in your area that handle super trapp I bet there interchangable .

 

I dont think its the jet kit that messes up your power...I think its either you dont know what you are doing or are not using the recommended jets for your pipe. Ive jetted TONS of times and have not lost an power...ditch the stupid kits and just buy some jets from your dealer ($3ea) Ive got a box full of jets from 138-200 and Im currently running 190-195 dynojets [img]i/expressions/face-icon-small-happy.gif[/img]

Raptor660RShee350Twin, if your 0-3000ft and run with the lid off...try a 165/170 dynojet combo...that should be pretty close.