300ex

[Beta-cat]

What type and what size jet should I run in a 300EX with a complete DG Krome exhaust. Thanks. I was talkin' to my dealer and he isn't what type of Carb is on that thing. Thanks up front.
Forgot to mention I have a K&N air filter with precharger...stock airbox. Thanks again.

[Rastus]

Are you running lean now? What jet are you running now?
Id say go up a jet size if its lean.

[Beta-cat]

Sorry, its stock right now (122) main. I'm just not sure what type of jets to get. I haven't installed the exhaust yet. I do have the K&N installed. I am not installing the exhaust until I can figure out the jet settings. DG said up one step on the main. Thanks

[Rastus]

id say go up two sizes in the main for the K&N and the pipe.
If you decide to drill holes in your airbox, you'll have to go up another possibly, alothough, im not sure.

[Beta-cat]

UP,UP & AWAY.....

[300exryder]

i have a 300ex with a full fmf megamax II echaust and a k+n filter/precharger with a stock airbox. I moved the clip one notch and went fromt he stock 122 to a 128 with the same 2.5 turns out on the air fuel screw

i have a 300ex with a WB promeg and kn filter and i haver a 125 jet and it ran fine

[Beta-cat]

Hey Raptakilla14, in your sig it says "DEAD" that isn't because of the jet specs you were using by any chance....LOL :-)

[ride300exred]

I run a 135 with a Uni filter and WB slip on , mine runs great , It really depends on elevation and temp too though .
Kris

[Beta-cat]

I am at about 1000 ft above and the temp is about 20-30degree C. I installed the new pipe today with a 128 main. It backfired a couple of times first when I fired it up, but seemed to run OK after that. I have a test tomorrow at WOT. Tanks.