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Discussion Starter #1
I just picked up a 74' Ski-doo 340 tnt but have no manual for it. Can anyone give me an idea of the fuel oil ratio is for this sled and whats the best type oil to be using. Thanks! Also, is it best to use a high octane (92) gas? I saw an old ad for these and it indicated premium gas was to be used.
 

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I would go for the 40;1 or the 35;1 ratio. I had a 76 everest and it is pretty much the same sled in many ways. Premium fuel is not needed for sure. When in doubt go rich
 

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Discussion Starter #3
I found a decal on the engine which specifies 40:1 so thats what I used with Power Punch 2 cycle oil. Ran great, took it on a 25 mile ride today climbing from 3,000'-5,000' and it ran great. This is a fun sled to ride, not bad for a $200 sled!
 
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