Mix ratio gas oil.

[CentralOregonBum]

Old 56 johnson, I thought it was a 57, but it is a 56 30hp with a 57 35hp javelin hood... I've read three or four different ratios... 24/1 ...is the most popular answer... I was also told to use ethenal free gas... but nothing over 90 something octaine ... so I would like to know what you all think is the correct mix... thanks...oh and if you know why that would be cool too ... thanks

 

[HighTrim]

Re: Mix ratio gas oil.

The mix for that motor is 24:1. Plain old 87 regular octane is fine, dont waste your money on high test.

Post some pics of your motor, I love the Javelins, and collect them. Curious to see what you have.

 

[1946Zephyr]

Re: Mix ratio gas oil.

Central Oregon Bum? Really?? Seriously?? Awesome. Another Oregonian member. Welcome aboard, bud!
Love the Central Oregon outboards. The older ones have survived longer and have never seen salt water. I bet you have a nice classic there

 

[lindy46]

Re: Mix ratio gas oil.

I run 24:1 in my 1957 Lark. Works fine.

 

[kfa4303]

Re: Mix ratio gas oil.

+1, 24:1 mix with regular old 87 octane along with Champion J6C plugs and you should be good to go. Here's a handy link.

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