When I used the old gas saw, if it was a big job, I would stop and go find some ear protection.
Small saw=small muffler. I never liked trying to get the everything just right before
it would start.
Reminds me of a hard-to-start model airplane engine. Even with the hand-held
electric starter, some of them are a real pain.
The only RC engine I really like is my 4-stroke..It starts easy and looks like a tiny motorcycle engine..