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i was wondering what you guys think about how warm is too warm to run my sled without hurting it ive always went by 35 or below some poeple say only in 40 or under & i had one guy tell me that you can run them in any temperature because lawnmower engines are air cooled and we run them in the summer........[?] (I have a 95 indy sport 440 fan)
 

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The problem with running an air cooled sled when the temps get high is twofold. First the ambient air temp flowing across the cooling fins is higher so the cooling isn't as efficient. Second, the snow is generally softer/heavier and you'r putting more of a strain on your engine than normal. Depending on how bad you want to ride you always have the option of removing your hood. It WILL run cooler.

I've run up to 50F but I always have my ears tuned in to listen for detonation. Running premium will help.

The guy that held the water skipping record in the early 80s (summertime) used an air cooled 399 ski-doo Oly. Watched him run once.
 
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