islandrules
New member
I'm just in the process of freshening up the top end and it appears to me that the side to side room on the bottom of the connecting rod might be at getting a touch loose. I can't find a gas gas specific tolerance but on a cr 250 it says .4 to .8 mm and I'm at .95. Were these loose motors? or is it time to freshen up the bottom end. The up and down is at just under a thousand of an inch so it's still within speck but also getting close to the upper limit
Any body have a spec sheet for these online?
Any body have a spec sheet for these online?