I have a older 175 hp Yamaha and there is no warr left!!
I only carry 65 gal gas and 3 gal oil.
I never did a decarb?? Maybe I should. I have only had this motor for 1 1/2 seasons and it had nice compression when I got it. 121 to 125 on all cylinders.
I have been outting carnon cuard evry other tank or so, so i am sure its fine.
I guess if it an't broke don't fix it!!
Thanks
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