emonk

I’m having an intermittent problem with my 2022 Epure Race. A couple of days ago, I started riding in blue mode with tick over on. Very quickly, it switched to green. Pushing the selector button again to blue, it again switched back to green when riding a short distance (it stayed in the same TKO mode). I rode back to the van, took off the covers, wiggling wires and harnesses did not trigger it. What did trigger it was hitting the right side of the motor with the palm of my hand. It was surprisingly easy to trigger it this way. Also, tilting the bike to the extreme left triggered it. Unfortunately, the problem stopped after about 15 minutes and I haven't been able to trigger it so easily. I rode for over an hour with it happening once or twice. Once I did get the map button flashing red, but that went away when pulling off the tether. Suspecting the issue was related to the motor encoder, I disassembled to inspect. The photos show what it looks like. The JST connector is for a thermistor. I put on a test plug and measured the resistance while warming the engine case. It appears to be working properly (no spikes or drops when warming with a heat gun or hitting the engine case with my hand). It possibly could be the encoder itself. I've fixed other intermittent problems such as faulty progressive regen harness and faulty TKO switch. These other problems caused issues consistent with the component. For example, the power would cut out when I had a faulty regen harness. With a faulty TKO button when hitting a bump, the mode would switch to green and change the TKO mode. I hardwired the TKO mode to be on (a few months ago) since I never ride with TKO off. For the current problem I'm looking for some pointers. For example, would a flakey encoder cause a sudden switch from blue to green? The bike was in my van which was about 10 degrees warmer than outside. The problem started immediately when starting to ride, but stopped after about 15 minutes. It wasn't a hot day, but the van was a little warmer. I’m speculating that there may be some correlation with the temperature change.

Sorry for the late reply. I don't get notifications. I couldn't find Nils in Canada, so I used MAXIMA MTL TRANSMISSION LUBE. However, there seemed to be too much clutch drag when I switched to using tikover mode. I hardly used the clutch till then. So I ordered Nils from the USA to see if it helped with the drag. The drag was about the same with Nils. After warming up, drag was less. Since then, I don't notice the drag, it could be less than before. I now think it's normal for all bikes. I've changed the clutch oil a number of times now, and not much at all on the drain plug.

I'd thought I'd add my findings since it was a concern of mine when I purchased my 2022 Epure race. I've changed the clutch oil twice now, and there wasn't much debris on the drain magnet for me, It looked normal and comparable oil changes on other bikes I've done.

Yes, that's the bolt! I needed to snug mine as well. I was just checking back here to post my findings since I hadn't checked this thread in a while - too bad I didn't But someone posted in the Electric Motion Owners Group on Facebook with the same issue. It seems like this is a common thing. There are pictures of the bolt that need to be tightened in that Facebook thread.

I also have tried to find the source of a clunk on my 2022 Epure race. Mine will also go away sometimes but can be reproduced my hopping on the pegs. Seems to be close to the top of the rear suspension compression. I've suspected the rubber mud guard in front of the rear shock, or chain tensioner, but not sure. I had forgotten about it until I read this post. I will check again on my next rides.