Re: fuel mixture -- VINTAGE SNOWMOBILE CHAT

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Subject: Re: fuel mixture

Author:
MrSmallengineGuy

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Date Posted: 23:49:19 01/03/11 Mon
In reply to: Brian 's message, "fuel mixture" on 19:05:17 01/03/11 Mon

originally back in those years those 630 Rotax twin models ran on a 32:1 mix of leaded gas & #30 oil.
With todays fuels and oils, Mix it 40:1 using a good grade ashless Outboard Motor oil (The type which is formulated to run up to a 100:1 ratio in Marine engines) with a good grade 91-octane or higher gasoline.

>Can anybody tell me the fuel mixture for a 1973 640
>skidoo?It's a double track. Apparently the mixture
>should be on the fuel cap but that isn't the case.
>Thanks..Brian

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Replies:

Subject	Author	Date
Re: fuel mixture	Jer	21:37:24 01/07/11 Fri