The MS 200 only has the screen removed, I need to mod the muffler this weekend. Any quick fixes for that? On the MS 390, I removed the screen and deflector, and drilled a 3/8 hole in the muffler. I just removed the screen and deflector on my MS 192, and honestly it seemed like it did have more usable power. In fact, same goes for the MS 390, and the MS 200.
I'm new to performance tuning (most work done with a saw in a given period of time, i.e. HORSEPOWER) on the size of two strokes used in chainsaws.
I have done RC car tuning where you richen or lean the top end after running it in/on a given condition/day then testing the head temp with a gun, too hot, too lean, too cool, too rich and not enough power. I'm sure something has to translate, but I don't see anyone with pyrometers on the head, or using a gun.