Jetting and mod help HELP!!!

[dasanii19]

I just got a 1993 300ex that has full DG RCM exhaust and a foam moose filter. I have no clue what type of carb is on this thing, all I know is that its the stock Kehin carb so I would think its a FCR??? Ok So my question is with a full exhaust, and my lid taken off my air box with a foam moose filter what should I be jetted around for elivation 4,720 ft.?? Please help im trying to get this thing tuned.................

Also is a foam moose filter considered quality intake? I mean its way better then a stock filter right? and lets more air in right? Or does it only let more air in with you make the intake whole bigger?

[dasanii19]

someone gove me some Information please

[dasanii19]

bump

[300exOH]

It's kind of hard to give exact jetting specs since every quad and the conditions are different. I would start with a 128 main jet and a 40 or 42 pilot and go from there. I am running a sparks w/a modded airbox lid and I'm using a 135main and 42 pilot. I am much closer to sea level than you are though. The only way to get it right is to do a plug chop. There are a couple good articles on jetting here http://www.atvriders.com/articles/index.html

As for the moose filter I can't really give much info since I haven't heard anything about them but I would bet it does flow better than a stock filter.

[dasanii19]

Thanks, thats what I needed , I will research more into tuning it just right.