Hey there I've got an 11 pro rmk. Just got it back from clearing codes and fixing issues. Was running very well. Then I put the mtntk fix kit in. It was working well for the first 2 rides. Started loosing rpm yesterday to the point it was not rideable. Felt like power valves weren't opening but I cleaned them this year. If I blipped the throttle I noticed I'd get to 7200 but if I held the throttle down I would go to 7200 and drop down to 5000 or so and do that back and forth while holding the throttle. Started looking in my sled and noticed when we put the injections back on the motor, I noticed the injector o ring was broken. Is that what is giving me these symptoms? Otherwise the only other thing I can think of is replacing my break pads. But I didn't feel any friction so I don't think that was grinding.... Thanks guys for the help