Ive started tearing down my cre tuned jpx.21 tonight.
Delayed by a stripped head bolt which I had to drill out.
Piston and sleeve are in good condition with plenty of pinch, the bottom end is in a bad way
I'm not surprised it wouldn't run right, front bearing had lost its seal and was leaking and the rear bearing is completely seized mainly due to rust
The crank isn't too pretty either, hence the need for a Dremel
Remember fellow nitro nuts, our fuel is hydroscopic, so attracts water
Always empty your tank and run your engine dry when you finish, followed by a few drops of light oil in the plug hole and turn it over on your starter box
This will help your engine stay rust free, perform better and last longer!