99 Honda cr250r engine rebuilt

S

smokemaker

Member

Jun 2, 2005

15

0

• May 2, 2006

• #1

I'm rebuilding the engine for my cr250r, I got a Wiseco piston for it, do I have to drill holes on the wiseco piston before installing it?

 

Last edited: May 2, 2006

darringer

LIFETIME SPONSOR

Dec 2, 2001

1,029

0

• May 2, 2006

• #2

No, you don't need to drill the holes. .

 

C

ctrlaltdl

Member

Apr 14, 2006

24

0

• May 2, 2006

• #3

uh, that has a tenancy to reduce the compression!

 

N

NacNac250F

Member

Apr 15, 2003

154

0

• May 2, 2006

• #4

Only if the cylinder has an exhaust bridge and if the piston doesnt already have two holes on the exhaust side in it.