So I have a 2017 Super Tenere I bought in February 2018. After 2 years and 16,000 miles the engine would not start. I took it to the dealership who also could not get it to start. They did a leak down test to find 68% leakage in one cylinder and 53% in the other. They broke the engine down and after a back and forth with Yamaha, everyone is trying to blame it on the "California Gas" that had carbon deposits forming on the intake valves giving it this huge leak down problem. As of right now, Yamaha, the dealership, and the Extended Service Contract by Aegis Powersports are all blaming the "California Gas" and are directing me to an additive called Engine Med. As of this moment (still trying to deal with the dealership and Aegis) they are all telling me that this is my problem. Who would make a motorcycle (Yamaha), or sell a motorcycle (dealership), or sign me up for an extended service contract (Aegis), in California when the motorcycle cannot run on "California Gas"?