Mercury Thunderbolt 50HP 500

J

jeffrobean

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Feb 28, 2010
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Hello, I am a new boater and I have asked several questions already. So here is the next one. I have tried to do a little research on my motor. It is a mercury thunderbolt 50HP Merc 500. The serial number is 2214929. The way I see it is that it is a 1967 Merc 500. Is this right? And what should the gas oil ratio be? I am currently mixing 16 ounces of oil to 6 gallons of gas. Is this correct?

thanks
 
JB

JB

Honorary Moderator Emeritus
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Mar 25, 2001
Messages
45,907
Re: Mercury Thunderbolt 50HP 500

Yes. 16oz. (1 pint) per 6 US gallons is actually 48:1, but we usually call it 50:1.
 
J

jeffrobean

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Joined
Feb 28, 2010
Messages
14
Re: Mercury Thunderbolt 50HP 500

Thank you. Can anyone verify that I have the right year? Based upon the serial number I think it is from 1967.
 
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