Maintenance & Technical > KX100 / KX85 / KX80 / KX65 / KX60
KX65 plug reading after full engine rebuild - with pics
Foxx4Beaver:
a simple compression test will tell you how the top-end is doing....but it never hurts to pull off the cylinder a couple/few times a year, just to verify the cylinder walls are good, and there's no cracks in any intake/exhaust bridges...if the 65 even has bridges.
you can check the crank tolerances when the cylinder's off easy enough...just be sure to get a service manual, so you know what the tolerances are.
as for the tranny, just keep that oil clean, change it often, and it should last you a couple seasons easy, providing you replaced all the bearings and seals, with this fresh rebuild you said you just did.
Mike-Evans:
I'll have to get a compression gauge.
The only thing I didnt replace is kick start bearing, gear drim bearing and water pump bearing, they were in good condition. Everything else was replaced.
My manual says to replace the piston and rings on 12.5 hours, that seems short as we've done 1.40 hours now since rebuild
Foxx4Beaver:
--- Quote from: Mike-Evans on June 27, 2016, 09:08:07 AM ---My manual says to replace the piston and rings on 12.5 hours, that seems short as we've done 1.40 hours now since rebuild
--- End quote ---
that's probably under full race conditions....if you're just a weekend play rider, you should be able to get much more than that out of the top end.
bens87braap:
Jordan has clicked over 35 hours trouble free ;)
Mike-Evans:
Being paranoid since the rebuild and after every ride Ive removed the front pipe to look up into the cylinder.
Theres some rub marks in the back wall, no depth at all to them - is this normal?
There cross hatch is still strong around the cylinder.
Just hit 5 hours ride time on the rebuild.
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