Do NOT run an ABC engine rich! ABC engines use a tapered sleeve so the piston gets "squeezed" at top dead center to maximize compression. The construction is such that the sleeve and the piston expand at approximately the same rate in order to maintain compression.

Running it rich will cause the piston to expand at a faster rate, which will cause it to excessively wear the sleeve. Then when the engine is brought up to proper operating temperature, compression will be low. NOT what you want from your new engine!

The best way to break in an ABC engine is to run it on the "slightly" rich side of "peak", at full throttle, for about a minute, then shut it down and let it coolfor a couple. Then repeat.

Proper (operating) head temperature for most of these two stroke engines is about 300 degrees. 200 degrees is way too rich.

I too would look at the low end setting, but it will take a few tanks to get it to the point where it runs reliably.

Good luck,
Dennis-