10 Horse Johnson - maybe 1958

[denjud]

can anyone give me the gas - oil mixture ratio for a 10 horse Johnson Model od-13 Ser - 127358

 

[Yepblaze]

Re: 10 Horse Johnson - maybe 1958

I think they might have called for something like 16:1 a half pint per gallon. But with "todays" modern 2 cycle oils TCW3 it's safe to run it at 24:1 or even 32:1

 

[steelespike]

Re: 10 Horse Johnson - maybe 1958

Denjud, Stick with 16:1.<br /> Modern oil ratios are more a result of improvements in engine technology<br />not improvements in oil technology.<br /> Oil is the life blood of your motor let it do its job.

 

[JB]

Re: 10 Horse Johnson - maybe 1958

Howdy, Denjud.<br /><br />There wasn't an OD-13, but a QD-13 is a 1952 10 hp and needs a 24:1 mix, according to Johnson.<br /><br />That is 6 gallons of 87 octane unleaded, alcohol free gasoline and 1 quart of TC-W3 rated oil.<br /><br />Good luck.

 

[denjud]

Re: 10 Horse Johnson - maybe 1958

Thanks Yepblaze - Steelespike - & JB - yes it is QD-13 - Can you tell me? If I put an inline fuel filter in, will it foul up fast because of the oil? THANKS FOR THE INFO!!<br />denjud

 

[JB]

Re: 10 Horse Johnson - maybe 1958

Howdy, Denjud. <br /><br />An in-line filter is a good idea. The oil in the gas will not clog it.<br /><br />Good luck.

 

[Fontanaman]

Re: 10 Horse Johnson - maybe 1958

Howdy Folks,<br /><br />I run a 1957 10hp Johnson at 24:1. Which is the reccommended ratio. I don't feel comfortable with the idea of running these old timers leaner than they were originally intended. Oh yeah, and my motor runs like a champ!<br /><br />Just my 2 cents.