74saki

Member
Oct 28, 2005
25
0
I have a 1974 Kawasaki KS 125 that I am in the process of rebuilding. I am going to bore the jug to fit a 25 over piston, and I am wondering if I cold shave the head down 5 or 10 or? thousands to increase my compression ratio. Would this be wise?

-Thanks
 

Eric Gorr

Engine Builder
Jun 29, 1999
384
12
It depends on the total minimum clearance between the piston and head's squishband when the piston is at the top of the stroke. The standard spec for a 125cc bike is .040inches.
 
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