Re: 2 stroke engine without an Air Cleaner
I ran for a short time w/wire screen instead of filter and got a little more power. I put it back when water got in the engine.
One of the bikes I built for someone else was run w/o one for 600 miles at which point compression was so bad it didn't matter if clutch was in or out. Dust is like abrasive powder.
Putting one in a velocity stack defeats the whole purpose.