With more horsepower and refined throttle control, the new powerplant helps bridge the gap between traditional 600‑class sleds and larger, more expensive engines.

When Polaris introduced the Patriot 9R, the goal was clear: create the most responsive and powerful naturally aspirated ...

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There are two basic differences between 2 stroke and 4 stroke motors. One has to do with how many strokes it takes a piston to complete an engine cycle (more on that below). The other has to do with ...

EcoMotors International, a startup based in Troy, Michigan, has a new approach to an old idea–the two-stroke engine–which it says is up to 50 percent more efficient than most vehicle engines and ...

Have you ever wondered why you need to add oil to your chainsaw’s fuel supply? Or why some dirt bikes have a higher pitched exhaust note than others? We’ve all been burdened with yard work or been ...