And you can actually watch it turn from "Enabled" to "Active" and feel the difference. To change from Enable to Disable Turn your throttle in reverse direction till stop point and hold for 10 seconds...Do you have a Rushmore ('15+) bike? If so the EITMS is probably coming on and shutting down the rear cylinder. Press the INFO button on your right hand controls and it should bring up a screen that shows EITMS. If it says "ACTIVE" when you notice the issue, that is what you are experiencing. Good news is you can turn that function off if you desire.