Thanks for the replies everybody!

Gremlin:
That is about the timeline that I would have thought that a receiver would go out, but I have only had that one in the plane for 9 months.

mccor8:
Yes the motor was running when doing the range checks. I already did the metal to metal checks and eliminated them as the problem.

I just ordered a new ignition and spark plug today (I had not even thought about a new spark plug).
It is the original spark plug. This motor has about 16 gallons of fuel through it so far.

rcpilet:
Thanks for the ideas, I will figure something out and do it next.

-- Kevod