Originally Posted by bdubya
As many have recommended I started with between a 16:1 - 20:1 gas/oil mixture and idled it for 15min with a fan on it then turn off for 30min (did it 3x) to break in/ temper the chrome cylinder barrel and then one road test. It was running between 170 - 190 degrees just at idle with a fan on it.
I don't know who suggested that break in proceedure, but it's a very bad one.
You need to vary the throttle amount and engine rpm for break in.
When tuned properly, these engines run the same temp as any air cooled two stroke.