KR-1S.co.uk Forum

oops sorry guys my mistake - the top ring is tapered so KMX rings no good in KR piston. Back to modifying KMX piston!

StrokerBoy wrote:

ScottaKR wrote:Once they're finished and I have them back, I'll measure the hole size and post up all the details along with pics of the modified pistons.

=D>

When are you going to post the measurements on the finished pistons?

Mustang wrote:

StrokerBoy wrote:

ScottaKR wrote:Once they're finished and I have them back, I'll measure the hole size and post up all the details along with pics of the modified pistons.

=D>

When are you going to post the measurements on the finished pistons?

Sadly the poor old Tandem Twin is currently sitting up the back of the garage waiting for me to finish the ZXR rebuild before I can get to it.
The big problem with using the KMX pistons is the difference in weight, as they are somewhat heavier (can't remember exactly how much), and would put the engine out of balance.

ScottaKR wrote:Well, I bit the bullet this morning and ordered a pair of 2mm O/S piston kits and bearings on Evilbay.
Now I've just got to wait for them to arrive from the UK. [-o<

Hi,

Did you fit the +2mm KMX pistons to your KR250, was it just a straight swap?

I have a complete bike just lying in the garage just cause one piston is missing

Would you advice me to fit the KMX + 2mm ones? please advice

Thanks