Re: Have I blown up my motor?
Don't run 16:1.
It is complete overkill, and can even cause a lean condition, and that will kill an engine.
Also, very important, When you start then engine, be sure it is warmed up at a high idle or slow cruise speed for the first couple of minutes.
Running a two stroke to hard right after start up can cause what is called "cold seizure" and it take the stuff off the cylinder or scuff the piston skirt at the very least.