how do i know when my rings are going??

[thejake456]

i have been having problems with my cr250. i had the cylinder head off to replace the head gasket and get the head reshaved. i just noticed that when i put my piston to top dead center, i can move it back and forth, just a little bit. i know it is the rings but am not sure when they need replaced. if i slide the corner of a regular sheet of paper down by the rings the piston wont wiggle back and forth.

 

[RM85rider123]

it's okay, the piston is supposed to have a little clearance between the walls. it is supposed to be extremely small though. a sheet of paper should be okay. if your rings are going bad, you would have a great loss of compression and power.

 

[thejake456]

ok. that is most definantly not the case here!

 

[MXer666]

get yourself a compression tester. there not that expensive at all.

 

[xkevenx]

i had that problem, i needet to pepalate my cilinderwall with a new nicasil... if its not that much clearance its not so bad