SS5800 Stuttering
I've asked this question before but there was no reply. I hope someone here can answer.
I sold a SupuerSport 5800 to my brother about a month ago and now he's complaining that it "stutters." When he tries to accelerate, it doesn't do it in a linear or smooth fashion. I tried it out at the track the other night and the only thing I can compare it to is if you've got someone learning how to drive stick the first time and they miss shift. He says it started last week and at first he thought it was the battery pack but after several packs, the problem persisted.
I touched the heatsink on his esc and that thing was BURNING hot. Way hotter than the heatsink on my SS5800 and we're both geared almost the same. He's got a 71/23 and I've got a 72/22. We both have a Yokomo SSG.
Any clues? Is his SuperSport about to fry? Does it need a new capacitor? I thought there was a sensor in these things to keep them from overheating? Thanks in advance for the help.