2:1 Toomey Filter Jetting

[87TwoStrokeShee]

I bought a Toomey 2:1 filter kit, and i was wondering how i would have to change my jetting of the stock carbs to get to to preform right and not to lean. I have a 87 Banshee with V-force Delta 2's , bored 20 over. Need HELP SOON So shee can come back out

[midnite]

What pipes are you running? Whats your elevation?

[87TwoStrokeShee]

Im from michigan and im running stock pipes for the next 3 weeks befor my t5's come back to me.

[2003LimitedBanshee]

Depending on your elevation (would help to know), I would guess you will probably be in the 240 range, with the stock pipes installed. The old standby way to get in the ballpark is to go up until it blubbers, then come back down one size. This will get you pretty darn close. From there you can start to analyze the plugs, and maybe come down a little more from the jet that is one below blubbering. You can make more power if you can lean it out a little. But obviously, just a little too lean and it'll all be over a lot quicker. Once you get your T5's back I would guess you'll be somewhere in the low 300's on the mains. With T5's, the Toomey 2:1, reeds, and some basic intake polishing, I run in the 320-340 range, depending on temp and elevation (anywhere from sea level to 4000' depending on the ride). Chances are you'll end up above the 280 that Toomey says is ideal, pretty much everyone I've talked to does.