So been fighting a intermittent problem with my sons 12 600 Pro Rmk. The sled ever once in a while starts cutting out under acceleration. I have also noticed a fuel pump whining noise at the same time when this happens. Yesterday had it happen...shut the sled off for 15 min or so and the noise went away. Guessing need to pull the fuel pump and see what’s going on in there. Also probably change the fuel filter, possibly hoses too. Any other suggestions?