I finished rebuilding my FS1 engine about 2 monts ago. Ive done about 50 miles on it and last time i went out on it, the engine started to knock at low revs and when pulling away. I've got a feeling that the bearings in the crank may be damaged. Is there any way to find out without having to dismantle the engine? I dont want to restart it incase it causes more damage to the engine. Could a loud knock from the engine be something else? I aint too good with mechanics and i dont really want to pull the engine apart unless i have to.
Any ideas/tips/advice would be great,