Ive just taken the head off my bike and theres no small end bearing? Just a snug fitting grugen pin into the con and the piston, well actually it was rattling around in the piston and making a right racket lol hence me taking it to bits.

Is this normal?

Cheers

James

no

This is a 2004 parts cat as the 2005 engine cat link appears wonky, but it's the same.

http://www.beta-uk.com/images/stories/spares-pdfs/2004/rev3_2t_04_125-200cc_engine.pdf

Frame cat, just in case.

http://www.beta-uk.com/images/stories/spares-pdfs/2005/rev3_2t_05_125-200cc_frame.pdf

My 2008 was like that. The bush should be a press fit in the rod and a slip fit on the pin. The crank assembly is the same for the 200 and 250 but the 200 piston uses a smaller pin. The bushing reduces the size and may add weight to help offset for the lighter piston/ pin.

The 2008 parts list does not accurately represent this and shows the 125 & 200 using the same needle bearing. Just looking at the list, the bushing is likely 16-22-22. I believe someone (trialsand tribulations ?) sold a needle bearing that may replace the bushing.