newtrialer Posted October 30, 2014 Report Share Posted October 30, 2014 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 Quote Link to comment Share on other sites More sharing options...
nelly1 Posted October 31, 2014 Report Share Posted October 31, 2014 no Quote Link to comment Share on other sites More sharing options...
goudrons Posted October 31, 2014 Report Share Posted October 31, 2014 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 Quote Link to comment Share on other sites More sharing options...
mcman56 Posted October 31, 2014 Report Share Posted October 31, 2014 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. Quote Link to comment Share on other sites More sharing options...
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