ORIGINAL: Harigo
My moki 210 is pinging and making knocking sounds a bit at high rpm. But only in the air. I am worried this may damage my engine. How do I solve the problem? I am using 5% cool power fuel and a master airscrew 20X10.
I had this same problem with my Moki 1.80. this is what I did to reduce the knocking: Reduce nitro down to 0% (use some castor). Open up the cowling for more air flow (use baffeling if needed). Use a K&B 1L plug. Run it slightly rich.
I no longer have this problem.