Top end is probably shot. The valve guides are not good in Polaris which causes loss of compression .. do a compression test Ive had to do 2 top ends on Polaris due to inferior design of the valve guides and airbox sealing.
From what they are saying, the hard start and loss of power happened randomly when their bulk fuel tank had ( strange ) smelling winter fuel in it.
It was in flagstaff, then switched out for another unit once it started running bad.
We will see, they might use several different things. @ this point its disposable to the company.
I wouldn't mind buying it and rebuilding the motor/top end.