Heard same stories talking with guys on the trail. Some no problems, others nothing but problems. I put 2500 miles on the sled (1,500 no problems) Then one after another.
Problems leaky chaincase (fixable with new bracket)
Throttle position sensor.
Light assembly fell apart internally
2 -Stators ( magnetic ring in flywheel bond seperates, then trashes the stator, and then you tow)
I beleive the real issue is the vibration is hard on electrical components.
In all fairness, its a fun sled to ride just don't ride alone and bring a pull strap.