Chain Tension Problem

Hi I have an OTK kart with IAME x30 engine and I am having a strange problem that I can’t sort out with chain becoming very tight and looks like it’s warped in one spot as soon as I finish racing once I leave the kart cool down for around 20 mins the chain tension returns to normal again and looks perfect?
I have tried changing sprockets both front and back, Axles and new chain but it still does this.
Would anyone know what could be wrong?

1 Like

Have you verified the sprocket alignment? Is the engine mount all square?

Yes I have aligned sprocket with laser and used brand new mounts and made sure they are square.

I had a front drive sprocket that was worn out and was ruining chains til i finally figured it out