Recent content by rust

I complained to GBK about the CON611 controller and they refunded my money plus shipping. That was very good of them. I intend to send it back to them and I asked them to provide me with a return address. My curiosity really got the better of me, so I took a philips screwdriver and opened up...

Yep. It was a loose wire which explains why the hub was vibrating the way it was. Push push coast push push coast push push coast TIMES 16 for each revolution. In any case, I got to know my install a little better. The phase wires loosened up when I removed the tape from the barrier strip I...

Holey Underwear! So I've got the wheel 99% off the frame, just removing the barrier strips for the connections when I notice that the YELLOW motor phase wire was loose! The problem was when I was testing that the wires were pretty tight in their position, and a little inaccessible (prior to...

I agree with Dogman's logic. The vibration still goes on when the controller is not in use so I have to believe that it's a non-electrical problem with something inside the hub giving it grief. I'm going to watch Neil Paisnel's video a couple of times more...

Oh really? What did I do with the motor wires? I'd love for you to explain to me how testing for the proper configuration after finding the DEFAULT YY-GG-BB combination (which SHOULD have worked from the first moment) produced an incompatible situation using the CON611. GBK's product was...

A little background first: I've been struggling with my bike for a while now. First the original controller decided to die a silent death. No magic smoke was produced. Just working and then not. Not even pfft. That was 2012. Aw crap, so I ordered a YK85S 36V/48V 250W/350W off of eBay. MISTAKE...

Nitrogen is FAR from being inert. If it were, there would be no fertilizers, no nitrous oxide, no ammonia, no LIFE.

Well, I'm back. Not long after getting the controller installed and working, my batteries gave up the ghost. Or at least I seriously believed it to be as such. For those of you who wanted to know what the controller was doing when it was doing its little dance, it was "configuring" itself...

Turns out that the wiring on the throttle was a little futzy. Re-soldered the connections, did the test again, and IT WORKS! BTW, nothing to do with the Hall sensors. Also, the phase wiring was correct. G-G, Y-Y, B-B I believe I was getting an anomolous reading when I checked the throttle...

Update: it was the controller. Bought a YK85S on eBay to replace it. After some nonsense with the thing, I got it running. Took it out today for a test ride: everything A-OK Thanks to everyone for your guidance and suggestions

I purchased one of these to replace a "no-name" controller that quit on me, but I am having some problems getting it to work for me. This is a 36/48V 250/350W brushless controller made by Yi-Yun http://www.yiyun.cn/ I got a diagram for it from an Italian forum...

Test results: I get a good reading of up to 12VAC on each pair doing the crank test at a moderate velocity. I had to buy some alligator clips and hang the frame from the ceiling. I think this points to a futzy borked controller... opinions, anyone?

So, at a reasonably constant velocity, I should get a reasonably stable reading on AC... And each pair should give a reasonably equal result. I need to channel Nikolai Tesla for this! I would have thought it would be DC. I imagine the magnets are arranged alternating polarity then... Now, if...

Apply 5 volts on red black, measure voltage between Blue-black Green-black Yellow-black. As the wheel is rotated slowly you'll get 0V, 5V alternately and if you do it with three meters you'll see the three combos "cascading" ie 0 5 5, 5 0 5, 5 5 0 etc -- or is it 0 0 5 I forget. Spin too fast...

It would appear it's a direct drive. This question was because of the difference in pricing on a 500W versus 200W -- which would be available in only hours as opposed to two months for a controller. For me, shipping is a killer. I can't justify 200 bucks in shipping. Or even a hundred! Not when...