Maintenance & Technical > KX100 / KX85 / KX80 / KX65 / KX60
yz85 oil question
sandblaster:
No, going stock will likely make the spooge worse.
Check and see if the number on your needle matches the stock numbers.
chris-mets:
Ok, I checked the needle and it is those 4 letters that you said. What do you suggest I do to solve this oil problem?
Thanks
Chris
sandblaster:
If you have the carb off I would remove the reed valve and look into the cylinder.
Turn it over until you can see the rings on the piston.
Is there any brown or black below the lowest ring?
chris-mets:
I removed the boot and reed valve and the spark plug. When you lightly press the kick starter it spins really nice. The piston doesnt come down far enough to see the rings but you can see the skirt of the piston and its clean/ no brown or blackness. The valve was also really clean and almost brand new looking. What should I do now?
Thanks the help sandblaster
Chris
sandblaster:
Well... My son had a yz85 that spooged like crazy.
The bike seemed to run ok but was black after a bit of riding.
I went through the jetting and it appeared to be perfect.
I took the top end off and it looked good.
But, I replaced the piston and rings anyway and not only did the spooge disappear but it really perked up the power.
I don't know what the numbers are but I would get the compression checked (with a gauge, not by feel) and see where you are.
Beyond this, I'm out of guesses.
Anyone else have some ideas?
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