RE: Skybolt hangar and clubhouse
Hi Minnflyer........Just to add a little more confusion....I had the smoke system on a previous model.
The engine was a .70 OS 4-stroke. Tapped the muffler even farther down the line. See the yellow line in photos.
No melting problem, But a much smaller engine. I used the same 20% fuel (could that be the problem??)
I "assume" that a four stroke engine should run about the same temp. So I am really befuddled.
Thanks for the help.....Murph.........