ProStar S4 4-Stroke Engine - Sled Tech EP 15 | Polaris Snowmobiles

This week, Sled Tech episode 15 highlights the ProStar S4 4-stroke engine. Known for lower maintenance, durability, and increased gas mileage, the ProStar S4 is designed for spirited performance and run riding.

VIDEO SHORTCUTS
0:21 - Engine Overview
2:44 - Architecture
4:06 - Oiling System
5:40 - Crankshaft
6:28 - Firing Order
7:55 - Cam & Torque Curve
8:40 - Durability Upgrades
9:48 - Fun to Ride
10:35 - Smooth throttle response


POLARIS STUFF
Instagram –   / polarissnow  
Facebook –   / polarissnowmobiles  
Website – https://snowmobiles.polaris.com/
Newsletter – https://snowmobiles.polaris.com/en-us...

OTHER RESOURCES
Rider Safety – https://www.polaris.com/en-us/safety/...
Polaris Owners Manuals – https://snowmobiles.polaris.com/en-us...
Polaris Podcast – https://podcasts.apple.com/us/podcast...

From the backcountry to the trails, Polaris Snowmobiles delivers the ultimate in winter fun."