swk550

My Feedback: (76)

I recently ran my OS GT33 for the first time. I am using a home made isolator mount. It can idle around 1800 RPM but my mount shakes too much. I get a good reliable idle at 2300 RPM. I tested two props on the standard muffler. I got 7800 RPM with my 17-12 pattern prop. I am getting 7200 RPM with a Xoar 18-10 swoard. I too had to start at 1/4 throttle to keep it from running backwards. The engine is very easy to start. Attached are some photos of my set-up.