Hello,

I just bought a new OS RG with pul start and I was on my third tank of breaking it in. I wasn't driving the car during break in, just letting it idle. Suddenly, half way through the fourth tank, the engine stops, the flywheel won't move and when I opened it up, the piston was stuck at the very top of the sleeve. I tried to move it but it won't budge an inch.

Did I just break my engine?

Can anybody offer any insights on this? Thanks a lot!