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How much and what kind of gear oil 40hp 2 stroke

Y

Yamahaified

New member
Just wondering how much fluid and which kind I should use? I read u should only use yamalube, but my local dealership is closed today and was going to do this. Thanks
 
I'd first refer to your owners manual. If you don't have one, locate online using model/year. Yamalube isn't required, any brand will do.
 
Use marine 80w 90 lube for the lower unit. Pump it in from the bottom screw until it comes out the top. That is how much you need.
 
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