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Old June 4th, 2023, 06:40 PM   #15
Sploomph
ninjette.org member
 
Name: John
Location: Georgia, US
Join Date: May 2023

Motorcycle(s): 07' Kawi Ninja 250

Posts: 10
Quote:
Originally Posted by DannoXYZ View Post
Did you measure piston to cylinder clearance before & after honing?
Did you cross-hatch cylinders for new rings?
Did you measure ring end-gaps?
Measure valve-seat contact width?

Depending upon what those numbers are, that's difference between worn-out engine vs. new.

For new rings, you don't need any honing. That's only for removing material when fitting new oversized pistons. Basically just follow steps in manual, 1,2,3, etc.
No, Yes, Yes, and No.
I dont have the tool to measure clearances and didn't know that was a thing.
I did cross hatch the cylinders pretty well.
The endgaps were within spec.
I didn't measure it as i didn't have the tools and I also didn't know that was a thing. But wouldn't the water test make sure the valves are sealing good?

And I know you don't have to hone for new rings but I was worried about some weird gunk on the cylinder. The gunk is hard enough that my nail would catch on it. After honing it for a bit, the gunk on Cylinder 1 was still visible but gunk on Cylinder 2 was still there. I took it to a machine shop down the road and they said they'd "seen worse".
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