Low RPM/Low speed sputter on Pro-RMK

[BigBlueEdge]

We're up on the mountain now, at 8-10K feet, and the stutter is gone. I rode the sled from about 2 to 5 hours on it today and it has run just great. It is clutched for this elevation. When it was having the problem it was clutched for 6-8K. Not sure what fixed it. It still has the premix in the tank.

Rob

 

[Big D rmk700]

Mine has done it from the start at both elevation and sea level heading to the dealer this afternoon i believe mine is the injectors but not kicking any codes out, seems to be getting worse the more miles I get on. Have 650 miles on now with non-ethonal plug in.

 

[Clayton]

I've put my ethanol resister in 2x now (87 octane river gas) and my machine ran poorly both times. Seemed to have a mid range bog of sorts. I noticed it mostly while cruizing at 6500 to 7000 RPM, when I'd stab the throttle the machine would bog and not pick up RPMs. I could get in and out of it a few times and the symptoms would typically disappear. Swapped out the plug with the non ethanol resistor and the symptoms disappeared. No issues to date running with the non ethanol resistor.

 

[prorider]

I have a little over 500 miles on my pro have run the non ethanol res from day one and have never had any problems i ride at 8500-10000 feet. I did put the air intake on from slp. and 60g weight.

 

[BigBlueEdge]

So, after over 250 miles in the mountains the sled is running great. The stutter it had on my first ride in MN went away and never came back. Sorry for anyone else having a similar issue, but all I can say is that mine was short lived and went away on its own. I don't intend to ride it back in MN so I may never know if it was altitude related or just break-in richness.

Rob