Air box

[Austin34]

I took my air box lid off. And it sounds like crap. What filter should I use uni I think I might and should I keep it off or what.i have a b1 tomney exhuast what jet should I use so it dosent run lean like it is with out the lid on

 

[tbrooks]

Sounds like crap cause your running lean now. I believe its +2 sizes for the lid off. With the Toomey I think that will put you around 330. Always plug chop to confirm, and wait for another answer cause I'm no expert. I like uni and I believe aftermarket filter ups one more jet size. I would get an outerwears cover for the filter or mod your lid for the outerwears kit.

 

[tbrooks]

I just seen your other thread stick to one thread per subject please, your already getting good advice there

 

[Blaaster]

need more info than that.. Temp, altitude, any other mods, oil injection or premix, air box lid or no. Only a plug chop can tell you what jet you need. we can get you close though..

Where in P.A? need your altitude. Also premix or oil injection? and the only mod is Air box lid removed right?
310 maybe .. You may need to move the needle a clip. Plug chop to confirm your jetting ALWAYS..

Lid off, I would start the plug chop at #320, as Toomey states #310 with holes drilled in the air box lid.
Add one size more for 32:1 pre mix.

Did you plug chop?