The engine on my CT5 (NX-15) is smoking. Why is this? It's not too lean. I tuned it high end: two turns out from fully closed and carb needle: 1/2 turn to 1 turn in. Is this correct? Is it just smoking because of moisture on the engine or what?

I contacted Cen Racing in an email and never got a response!! I have sent 2 emails about problems. One about how to tighten the flywheel and the other about this. I got no response.

I actually wrote 10-15 emails about asking questions about the ct5 before I purchased this and they ALWAYS wrote back but when there is a problem they don't seem to write back!!!

Please help Cen Racing.