did piston bearings go ?

[ur730im911]

well my crank seized up and my bike wouldnt kick over so i took off my head and right gear and strator cases i noticed when i spin my crank back and forth when the piston is near the top that my rod taps the piston. I also pulled the engine when the piston is near the bottom of the clyinder it has a hard time coming up i think its the piston bearings cuz the rod taps the piston? what do u guys think thank :ohmy:
Dave

 

[CRazy250]

wristpin and needle bearing are probably seized, did you run correct oil ratio on the bike?

 

[ur730im911]

ya 32:1 but but a seal was broken and it had a air leak i didnt know it was shoving coolant into the tranny so the tranny oil 10w40 was all thinned out and gray:( so after it overheated i imediately took out all the oil

 

[ur730im911]

needle? the float needle huh?

 

[CRazy250]

needle bearing as in wrist pin bearing.

 

[whenfoxforks-ruled]

Glad it ain't no 4 stroke!

Crank rebuild, main bearings and seals, have cylinder and cases checked, fixed, replaced, complete top end, preferably go all oem and check the head