Yesterday i decided to check my piston and barrel for any wear as i dont know when the previous owner had installed the polini sport 70 kit. It all came off a treat and looked good (no major scores or marks on either the barrel or piston). So i went to put the piston back into the barrel after making sure there was a good coat of 2 stroke on the barrel and piston and rings. It was very stiff and quite hard getting the piston in the barrel, but i eventuallt got it all together with a bit of help with a small rubber mallet. I tried spinning the crank but it wouldnt move so thought something must have been on the piston or in the barrel and scored and jammed. So today i decided to take it all off again and double check, after checking the barrel and piston again, and checking the crank would turn over, everything seemed ok and i put it all together again (the piston was again hard to get to the top of the barrel). and again the crank wont turn :blink: -Is this normal? (i dont think so) -what could cause the problem? cheers tommo
Have you got the rings seated right on the piston ? You should never use a hammer to put a bore on... Have you tried puting the top of the cylinder on and bolting it down and trying to turn it over by hand ? I wouldn't put it back in the bike till you fix the problem or you could do a lot more damage.
Have you got the rings seated right on the piston ? You should never use a hammer to put a bore on... Have you tried puting the top of the cylinder on and bolting it down and trying to turn it over by hand ? I wouldn't put it back in the bike till you fix the problem or you could do a lot more damage.
Did you take the rings off the piston by any chance ? Cause I know it sounds abit stupid but they could be upside down....lol.
