the engine was re-building about 5 months back, it was put a starlet piston (72 mm), lightened the flywheel and connecting rod and the head was upgrade with bigger valve. The RC in firts place was 11,5:1.


Lately have a metalic noises and become to throw smoke...

I think that the better idea is dismantle the engine and check inside...


Thanks...

I would say if you can't turn it by hand with no spark plugs in and not in gear something is jambed up good in there.

If you only had it rebuilt 5 months ago by a shop chances are it will be under warrenty and I would be talking to them before pulling anything off the engine