Maintenance & Technical > KX250 / KX125

Crank case oil

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Ryan393:
Is it OK to run royal purple 30w with the 125 clutch?

69HemiGTX:
I assume you're asking if it's OK to run this oil in the transmission of a KX125.  This would be transmission oil, not crankcase oil.  The crankcase on a two stroke is lubricated by the oil suspended in the fuel the engine ingests.  That being said, I would NOT recommend this oil.  Why?  Because it's designed for four stroke engines without wet clutches.  Their website doesn't use the term "friction modifiers" to describe this oil, but I wouldn't be surprised if it contained some.  Since the KX has a wet clutch, stick with an oil specifically designed for wet clutch motorcycle transmissions.  I could recommend an oil for you, but that always starts the biggest pissing match, so do some research and decide for yourself.

sandblaster:
http://www.royalpurpleconsumer.com/product-categories/motorcycle/

Run quick!!

68Fastback:
Run down to your nearest dealer or shop at get this.
Been using it for decades in wet clutch dirtbikes and never had a issue.b

http://spectro-oils.com/golden-motorcycle-gear-lubricant/

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