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Old June 19th, 2017, 04:25 PM   #14
wayanlam
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Name: Wayan
Location: Bali - Indonesia
Join Date: Apr 2009

Motorcycle(s): 2014 Z250

Posts: A lot.
Quote:
Originally Posted by JacRyann View Post
In U.S. you can do that easily too. Sleeves are commodity items used all the time in engine-building. You can get them from LA Sleeves or Darton or any number of suppliers in a variety of sizes. Machine-shops can also mill out block and install them easily as well. The difficult part is finding the proper pistons for the desired compression-ratio.

Wayan, do you know what the compression-ratio is after upgrade?
Have you done a compression-test?
Do you have photos of pistons?

Thanks.
The CR is 12.8, up from the stock 11.3 my mechanic did a displacement measurement to check that.

I neglected to take a picture of the piston cause the brand/SN was removed, and it basically looked the same as most 4 port cilinder piston, lol
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Kawasaki Z250, Bored up to 300cc with 12.8 CR, 41hp at wheel 27nm torque, Two bros full exhaust with DB killer
Dynojet Power Commander V, KnN Open filter, intake and exhaust ported, Puig Windshield
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