Hello forum. I'm all of a sudden having a reduction in the top speed of my R-20. As of now, the top speed that the speedometer reads (the speedometer accuracy problem is not relevant) on flat surfaces is 28 MPH, down from 35+ that the speedometer showed on flat runs prior to now.
In my thinking, this is either a problem with the batteries, the controller, or the throttle (or "accelerator" on the wiring diagram). Since I'm getting much better range with this reduced top-end speed problem, I'm inferring that this is not a problem with diminished battery capacity. My suspicion is that the throttle assembly is not working on the high end of the switch. I tested the leads yesterday with my multimeter and found that the 5 V line in registered 4.96 V. No problem there. However, when the throttle was fully turned to the highest position, the line out registered only 4.16 V .
Does this mean that the throttle is indeed the problem? Has anyone taken apart the assembly to try to fix it? I am hoping to not have to deal with EVTA on this issue.
Thanks in advance,