2012 Yamaha Super Tenere Electrical system Problems

“2012 Yamaha xt1200z Super Tenere. At least three times a month intermittently when starting engine it will insistently ramp up to 3000 RPM. I need to shut it off and recycle the key two to three times before it starts and sustains at normal 1100rpm, my fear it will damage the engine at some point. …”

“On several occasions, my 2012 Yamaha xtz1200 Super Tenere has failed to decelerate when I completely shut the throttle. The engine continued to rev at over 3,000rpms and the motorcycle maintained approximately 40mph, without throttle input. This motorcycle is not equipped with cruise control. Braking to stop required me to overcome the torque of the engine powering the bike forward at over 3,000 rpms in addition to the velocity of the machine itself. …”

“Motorcycle will for no reason die or idle fast around 3,500 RPM. This is very dangerous when letting off the throttle to turn around a corner and the bike does not slow down. It has happened to me about 5 different ride days. It would stall when letting off the gas or accelerate. I always was able to let the bike rest start stop the motor 5 to 30 times and it would go back to normal. I almost went of the road in the mountains when it 1st happened. Let off the gas for a tight corner and the bike did not slow it speed up.”

“I have had numerous electrical faults resulting in loss of power while riding and idle speed surges, resulting in the vehicle accelerating without warning. The surge of acceleration caused me to rear end a vehicle under normal braking, when down shifting caused the bike to lurch forward with an idle speed above 4000 RPM, impacting the vehicle in front of me. Luckily, I was able to slow the vehicle before impact so there was only superficial scratches found. The sudden acceleration caused a loss of control which resulted in the impact. …”