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Old June 4th, 2023, 11:07 AM   #10
Sploomph
ninjette.org member
 
Name: John
Location: Georgia, US
Join Date: May 2023

Motorcycle(s): 07' Kawi Ninja 250

Posts: 10
Alright after fresh rings, head gasket, and a minor hone i'm still having compression issues. I'm getting 90 dry and 130 wet on Cylinder 1 and 60 dry and 90 wet on Cylinder 2.

I'm pretty sure its the cylinder though as there was some weird very hard gunk built-up on the cylinders, carbon maybe? Cylinder 1 had very little of it, just a smudge-like trail. Cylinder 2 was much worse having an outline of the piston skirt of gunk. I honed the crap out of it and it didn't do much at all. I took it to a machine shop down the road and they said to run it and see what happens but that they'd "seen worse work".

So, at this point i'm trying to figure out where to go from here. If these things can be re-sleeved I'd rather do that, but I've never heard of anyone doing that. I have heard of people getting oversized pistons but looking online they are a little bit expensive. New cylinders can be found online too but most aren't really in any better condition.

Idk, what do you all think?
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