Yamaha, SXViper All Snowmobiles >>> Snowmobiles by Yamaha More details and ordering info. Under a sleek, sculpted hood modeled after our mind-bending open-class R1 sport bike lurks arguably the strongest 700cc single-pipe engine the industry has ever produced, armed with race-proven Yamaha technology like self-cleaning, electronic power exhaust valves, 300-watt digital CDI ignition with throttle position sensor, and forced air induction. User input on SXViper by Yamaha: Be the first to submit input on this product Submit Input: Your Name: Write or Paste Input here: Upload picture:      Review Guidelines