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You could just tape closed some of the vents, if it starts to over heat its as easy as pulling the tape off
the powder is good to keep things cooler even with a liquid cooled sled...a screen kit would be your best bet to keep stuff out...you can get one on ebay pretty cheap...and dont forget what polaris stands for..."pull off lake and repair in spring
Don't block the vents. The older models didn't have screen kits. You can put some in though. Polaris are a good sled. me and my friends have never had no major problems with them. My 1996 Indy ultra has them in the pic and my friends older ones don,t. Only problem I had with mine was one of the oil lines stripped out and popped off while driving. Most polaris have a shut off mechanism when not getting oil.(good thing). They tend to strip easy when taken off alot. Make sure they all tighten if not I fixed mine with a heli coil thread kit.I have a 96 ultra that i need to start mixing my own gas, it smokes like nothing other. Would you happen to know the ratio? That's not the only problem, the track axle popped out of the bearing and can't figure out for the life of me how to get it back in. (Image removed from quote.)