i need the gas to oil mixture for a 78 Scorpion Sting 440 - Snowmobile Forum: Your #1 Snowmobile Forum
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post #1 of 9 (permalink) Old 12-16-2009, 09:53 PM Thread Starter
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i need the gas to oil mixture for a 78 Scorpion Sting 440

can someone please tell me the gas to oil mixture for a 78 Scorpion Sting 440,,i'v asked 10 people and have got 10 different mixturers..thanks
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post #2 of 9 (permalink) Old 12-17-2009, 04:04 AM
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If it isn't on the tank, I wouldn't know where to even find it! The old oils used to be anywhere from 32-1, 40-1 or 50-1! I would use a good oil at 40-1 to start with and if the plugs don't show oil deposits go up to 32! If they foul easy then down to 50!
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post #3 of 9 (permalink) Old 12-17-2009, 09:17 AM Thread Starter
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i looked,,cant find anything,,thanks
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post #4 of 9 (permalink) Old 12-17-2009, 09:25 AM
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if i were you i'd just run 40:1 it's what i've always ran in my older sleds and it seems to be just about right on all of them. let me know what you find out
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post #5 of 9 (permalink) Old 12-19-2009, 08:35 AM
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I had one of those, Cuyuna 440, pretty fast but it kept burning pistons. I had to change the seal on the PTO side of the engine. 40:1 on the oil mixture.
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post #6 of 9 (permalink) Old 12-19-2009, 10:43 AM
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I had a 79 whip my buddy a sting we both ran 40 to 1 mine burnt 8 pistons+ spit out seals my buddys sting ran for years+years trouble free, just read the plugs on the first tank of fuel to be sure,clean the carbs on that sled if it has set at all!!!
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post #7 of 9 (permalink) Old 12-20-2009, 06:12 AM
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40:1

1992 Ski Doo Mach 1 (SC-10/2 suspended) March '07 SF.com Sled of the Month! (Lost in fire 4-7-13)
1992 Ski Doo Mach 1 original
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post #8 of 9 (permalink) Old 02-10-2011, 09:34 PM
o yea..
 
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its 40 to 1 it says it right bye the tool box
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post #9 of 9 (permalink) Old 02-11-2011, 08:47 AM
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Another Zombie rises!

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