Top end re-build question

[03pete]

I am planning on putting in a new piston on a fresh bore and I was wondering if you need to buy a new wrist pin bearing or will the original one work? thanks

Alex

[LTandRaptorider]

You should use a new one. Been a few years since I got one, but I believe the bearing is included with Wiseco pistons. Double check on their site.

Better safe than sorry. I always replace wearable items on a tear-down.

[matt1106]

my wiseco piston didnt come with a wristpin bearing, but i got 1 anyways, and i would if i were u

[fx4pitrone]

You should really change out the **** and prone to break factory washers and put in some billet ones in. Some billet washers and a 99 RM 250 bearing will save you down the road from losing a couple bores...

[Quadzilla2win]

Originally posted by fx4pitrone
You should really change out the **** and prone to break factory washers and put in some billet ones in. Some billet washers and a 99 RM 250 bearing will save you down the road from losing a couple bores...

X2!