No power and horrible economy, especially in a 2 up or utility sled. I'd rather take a 500 Polaris fanner like he is talking about than the 570, biggest POS motor ever made. Arctic Cat is purging all the low sales sled models and the only thing that Survived was the Bearcat with the 570. The Norseman is dead for 2020, as is the liquid cooled Bearcats. Beyond that, you pretty much can't do much. They are usually jetted fat from the factory, if you can figure out the coldest temp and lowest elevation you will be operating at you can usually jet one size smaller than what they chart says. If you don't care about top speed at all you could get really aggressive on the gearing and go way low.which would probably require a new chain but would work great at the slow speeds. When you have a load and are going at low speeds that makes a difference. It changes your RPM range slightly but more importantly gives much higher clutch efficiency. I don't have any gear charts available, but when I was riding a lot we geared them down 3-4 teeth (enough to use the current chain) and it made a huge difference. One thing that can make a big difference when towing or even going slow is gearing down.
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