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TZR 125 barrel compatibility

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salem1987
Scooby Slapper



Joined: 10 Sep 2013
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PostPosted: 08:54 - 06 Jan 2014    Post subject: TZR 125 barrel compatibility Reply with quote
Hi,

My tzr 125 4jb framed track bike is currently getting a full top and bottom end rebuild.
Last season it was run on one of the athena 170 big bore kits which is now dead from the big end bearing destroying itself.
I dont really want to spend the money getting a nikasil barrel re-plated and then have to buy 65mm pistons, when it hardly makes a difference to the bike top end wise. (its a pure track bike)

I am having a little confusion on which 125 barrel should fit this model.
I have found a 3MB00 barrel which is not nikasil plated, and would be perfect for a few re bores.

Or does it have to be the 4FU-00 (nikasil plated) barrel for this motor?

The crank case engine number starts with 4HW.

Thanks for any advice
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