broke piston skirt on 2001 cr 250

[rudevw]

I broke the piston skirt on the intake side and was wondering if I should disassemble the lower half of the motor to take a look at the crank bearings and such for damage from the pieces? I can't really find any major chunks, it looks like the conrod ground most of it up against the case. Can I somehow flush out any of the pieces, and if so what should I use? Thanks.

 

[Rich Rohrich]

The main bearings are likely full of debris and there is no way to effectively clean them out. It's time to split the cases.

 

[Lissa]

Split the cases and remember next time to do a top-end at least once a year if not twice or more depending on how much riding your doing. That'll help prevent that from happening again.

 

[WillyM]

Cases

I would split the cases and put a new big end bering,its just good insurance.
I have seen people skimp on this and it trashed the crank because the piston particles flat spotted the bering from grinding on it . .

 

[Rcannon]

I have had several friends ruin pistons in their 01 CR's. The weisco piston appears to last a lot longer and does not gernade when it wears out.