[ezgotxtman]

I did have a lot of trouble with the cart "backfiring" or hissing back through the carburetor. Making any adjustments to the carb. proved zero results.
So, I remembered what a older mechanic told me many years ago.... check your value lashes, and do it when the engine is hot. As most engines are engineered to run/perform when the engine is heated up to it's running temperature.

I made the .004 gage measurements a number of time with the 4 cycle 295cc cold. Same old crap... backfiring and hissing when de-accelerating. So, I went against the true believers, and made the .004 with the engine hot. Now I don't have any backfiring, or hissing, and to me, think I have better performance from the engine.