2015 Yamaha RS VIKING PROFESSIONAL
- 3-cylinder Mid Performance 4-stroke engine
The dependable, durable and fuel efficient Mid Performance engine has been the foundation of snowmobiling’s 4-stroke revolution. The carbureted classic engine’s 3-cylinder design is silky smooth and very trail-friendly.
- Direct-to-crankshaft clutching
Instead of using a gear reduction, the Mid Performance engine has the primary clutch directly attached to the crankshaft. It allows the engine to be mounted deeper in the chassis to deliver a lower center of gravity, further improving the sled’s cornering stability. The YVXC primary spins at 8500 RPM to transfer power from the engine to the secondary and on to the track.
- 20 x 156 x 1.375-inch Camoplast® Rip Saw™ track
The RS Viking Professional boasts a huge 20x156-inch Camoplast® Rip Saw™ track with 1.375-inch lugs. The deeper lug height delivers improved deep snow acceleration and handling for off-trail usage. The VK Pro’s extra-large version of the Rip Saw™ gives it excellent flotation in fresh snow. Its open-window design accepts extrovert drivers.
- Dual-range Hi/Lo and Reverse transmission
The RS Viking Professional has a dual-range transmission, allowing owners to operate the sled in low range for towing heavy loads below 50 MPH or in high range when not towing. The transmission is engaged via a lever on the right-hand side of the cab. The transmission lever also activates the reverse gear.
- Lightweight forged pistons
The forged pistons used in the Mid Performance engine are engineered for light weight and still allow high compression rates of 11.3:1 on 87 Octane gas.
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