I have to remove my motor's main power and sensor cable just to replace the axle bearing on that side due to the too big connector on the end of that cable. Watching your work really helps me see what's required to get that done. Great video as always!
Leaving stubs of the old wires is a great way to get the colour coding right when fitting a new cable. Alternatively take a photo with your phone, and refer to the photo when reassembling. I have found it helpful to solder the phase wires of the new cable to a single wire, pass the single wire through the axle then use it to pull the new cable through... it helps to get the cable round the tight bend where it exits the axle. Thanks for the video..
Could you reccomend a display / controller combo for a 750w rear bafang 48v please? I got on ebay: Ebike 36V/48V 750W/1000W 26A/30A 3 Mode Sine Wave Controller + S866 Display Set but when I connect up as soon as switch the battery on the back wheel spins for half a second then stops, when I switch the display on there is no life from the motor either PAS or throttle. Controller fault or my wiring? I got the 30amp controller, is it too powerful for the 750?
Sounds like wiring is wrong, disconnect pas and throttle and see if it still moves, then try the walk assist holding down button on display. Make sure the self learn wires are not plugged in (white + white single wires or green single wires that go back into controller) Also the 30a is too high for controller, 50v* 20 amps is already 1000 watts peak so 30amps will get melty
@@EbikeRepairs Thanks, I got a new controller, the 26A version. It works, it operates the motor via the throttle but no PAS. I bought a new PAS which is the pedal crank type, still nothing. The wires were different colours so I cut off the plug male and femal and wired every combination, but still nothing. Its not the end of the world to have the bike throttle only but not good especially if stopped (though the throttle lever is small and discrete.
I found that since you're cutting the new cable end off you may as well get a much longer on, it's a difference of 1 or 2 quid, then you can use the cable left at the other end to test your controller without dismantling anything. I haven't done much soldering for years so I used a bit of the ample spare to practice on. I found it easier to loosen the screws while on the bike and nice and held still.
Good video thank you. I want to upgrade to an L1019 and add a thermistor, do you think an L1019 would fit through the axle hole? I believe the overall diameter should be lager due to the larger phase wires.
Appreciate the video! When I pull cover with freewheel the whole motor comes with it, is there a sealant on the cover. Any tips to get it off without removing the whole motor core. Thanks.
Amazon, AliExpress, eBay. Search 'hub motor extension cable' and chop it up and add your own connectors if needed, or they might come with the right ends already depending on which one you find
No I think you just need a gun cleaning wire brush and clean it out from both ends I think they purposely put silicone in with the wire at the same time
They did, it's to prevent tension on the other end pulling the solder joints off the board with the wires. Silicone should probably be added back into the end to prevent it being ripped out by accident.
I have a bafang hub motor that the cable is getting to where i can see the wires where it comes out of the motor.... awesome video but where did you get the cable or what is it called. I'm gonna need one soon!
I'm about to venture into this same project. And though I can do this myself, watching you makes me think paying someone to do it for me might be the better option... Hey do you want a job? lol
Hi mate, I have a 750 bafang and a freewheel that is very much not working well 😂 as the motor plug is too big I can’t use a freewheel tool easily, would doing this make it easier to get my freewheel off while having the cover and freewheel as my only other options are cutting freewheel tools until I can make it work or splicing the wire 😂 any help would be appreciated mqte
Pozdrav iz Hrvatske,mozes li mi pomoci nitko ovdje u mom gradu nezna koji je motor u mome engewe engine pro upgraded version x1.Udario me auto u zadnji kotac i moj motor vrti ali jako nesto lupa i ne mogu vozit.Kotac je ljevani nema zice 20-40, a ja neznam koji mi je motor i jeli ima isto takve zupcanike kao ovaj koji vi radite.Isto je 9 pincni kabal.e bicikl je kupljen 2023.godine.Hvala ako mozete pomoci pozdrav iz Zagreba.
@@EbikeRepairs thanks for replying to my comment. A sensor was faulty in my engwe engine pro 750 rear hub motor and a big shout out to inner city scooters Dublin Ireland for repairing it with a new board. I guess referencing the make and model would be a good start in acquiring the right part.
Hola a todos, alguien sabe como reprogramar ese motor, en el nivel 1 de asistencia se pone a casi 20 km/hora, en el nivel 2 se pone a 25, en el 3 a 30 y a mí me gustaría que en 1 se pusiera a 10 en el 2 se pusiera a 15 km/h en el 3 a 20 km/h y así sucesivamente …
Sorry, but that's a complete mess, why didn't you just cut off the new plug by about 5 centimeters and solder it to the old cable and seal it again with heat shrink tubing, it would have taken less than 5 minutes!?
We all do things differently - this is the way I like to do it 👍 Sometimes it needs a whole new cable if it's damaged near the axle too, so I just always replace the entire thing. :)
Seems obvious. Zero forethought in what the other commenter described. If it wasn't for the exclamation points and tone of superiority I would've thought they were a complete noob asking a genuine question. That could've been a valuable teaching moment for them. You still gave them a nugget but I don't think they'll appreciate it until they learn the hard way@@EbikeRepairs
@@timothyliberty8052 we're all different - but if I paid someone to do this job and I got back some hot glued mess, I wouldn't like it - replacing the whole thing is a 100% sure fire way to make the job look clean and tidy
Dude you have to take the rest of the motor out and apart to get the new wire in your doing it all wrong and weaning the axle by drilling It if you don’t know what your doing don’t make a video of doing it the wrong way
A 07E error code is usually an error direction which would be a hall error and the solution is to check the connection. It can be anything from the Hall sensor or even a pinched wire. If I am correct the hall sensor would be a 41F.
I have to remove my motor's main power and sensor cable just to replace the axle bearing on that side due to the too big connector on the end of that cable. Watching your work really helps me see what's required to get that done. Great video as always!
I'm so pleased it helped you out! It's a pain but well worth doing. 👍
Leaving stubs of the old wires is a great way to get the colour coding right when fitting a new cable. Alternatively take a photo with your phone, and refer to the photo when reassembling.
I have found it helpful to solder the phase wires of the new cable to a single wire, pass the single wire through the axle then use it to pull the new cable through... it helps to get the cable round the tight bend where it exits the axle.
Thanks for the video..
Great tip! Thanks
Thanks
You're very welcome!
Could you reccomend a display / controller combo for a 750w rear bafang 48v please?
I got on ebay:
Ebike 36V/48V 750W/1000W 26A/30A 3 Mode Sine Wave Controller + S866 Display Set
but when I connect up as soon as switch the battery on the back wheel spins for half a second then stops, when I switch the display on there is no life from the motor either PAS or throttle.
Controller fault or my wiring? I got the 30amp controller, is it too powerful for the 750?
That's for the donation! I'd recommend the KT 20a or 25a controller, the KT LCD 8 colour screen.
Sounds like wiring is wrong, disconnect pas and throttle and see if it still moves, then try the walk assist holding down button on display.
Make sure the self learn wires are not plugged in (white + white single wires or green single wires that go back into controller)
Also the 30a is too high for controller, 50v* 20 amps is already 1000 watts peak so 30amps will get melty
@@EbikeRepairs Thanks, I got a new controller, the 26A version. It works, it operates the motor via the throttle but no PAS. I bought a new PAS which is the pedal crank type, still nothing. The wires were different colours so I cut off the plug male and femal and wired every combination, but still nothing. Its not the end of the world to have the bike throttle only but not good especially if stopped (though the throttle lever is small and discrete.
Great video. How did you sort the green board to fix the lights flickering on the tester?
I think I soldered the traces with a jumper cable.
I found that since you're cutting the new cable end off you may as well get a much longer on, it's a difference of 1 or 2 quid, then you can use the cable left at the other end to test your controller without dismantling anything. I haven't done much soldering for years so I used a bit of the ample spare to practice on. I found it easier to loosen the screws while on the bike and nice and held still.
Thanks 👍
Dental floss vacuum it will suck the floss up the rod and it's strong enough to pull the wire down
Great idea!
Great video, I'm about to have a bash at this, I just wish I'd seen it before I removed the motor 😒
@@dudders8838 good luck buddy! It's not too hard if you take photos before and after
Any way I can email you for advice on my particular wire issue, in my case it may be much more simple to fix but I could be wrong
Use a thin wire to attach the new cable to, then pull through?
I actually need to try that, I've struggled SO many times! Hopefully it works. Thanks
@@EbikeRepairs I saw a video of a guy using strong, not stretchy tape, twisted to a point and fed through, I'm going with that.
Dental floss and a hoover plat as many as you like to make a strong pull string @@dudders8838
Where you based mate. I’ve got a 750watt motor for a mate bike where the same problem has occurred
Ebike Repairs
204 Cooden Drive
Bexhill On Sea
TN39 3AH
EAST SUSSEX
07429 425651
maps.app.goo.gl/27gmqxYHHMdWJh6c8
Good video thank you. I want to upgrade to an L1019 and add a thermistor, do you think an L1019 would fit through the axle hole? I believe the overall diameter should be lager due to the larger phase wires.
It should fit! just
Appreciate the video! When I pull cover with freewheel the whole motor comes with it, is there a sealant on the cover. Any tips to get it off without removing the whole motor core. Thanks.
Hammer, tapping gently!
When I take off the side cover it stays connected to the motor. How do I separate them to get to the board to sodder new wires? 0:44
Tappy tap tap with a hammer (gently) and hold the shaft 👍
Nice job , question where can i get a replacement wire
Amazon, AliExpress, eBay. Search 'hub motor extension cable' and chop it up and add your own connectors if needed, or they might come with the right ends already depending on which one you find
No I think you just need a gun cleaning wire brush and clean it out from both ends I think they purposely put silicone in with the wire at the same time
That's a good idea! I'll have to find one...
They did, it's to prevent tension on the other end pulling the solder joints off the board with the wires. Silicone should probably be added back into the end to prevent it being ripped out by accident.
Undid the 6 screws on my cover but can't pull it off. Any tips? Thanks
Gently Tappy tap on the opposite side axle with a hammer, will make space. Put the axle nut on first so you don't damage the threads!
Nice video. Just have a question.. The tester you use, where does it come from? Homemade, or can it be bought?
s.click.aliexpress.com/e/_EIu0Myl
I found that removing each phase wire and sensor wires you're left with the housing...work that out with a spear sharpened 700 spoke...
Thanks I'll try it next time!
Hello, what is the purpose of the spring you put on the cable?
Just to protect the motor wire
@@EbikeRepairs Any idea what they are called?
@@dudders8838 so hard to find! But these essentially, but they come in different dimensions dualtron.uk/collections/dualtron-motor-cable-springs
I have a bafang hub motor that the cable is getting to where i can see the wires where it comes out of the motor.... awesome video but where did you get the cable or what is it called. I'm gonna need one soon!
Check out ebike hub motor extension cable in AliExpress.
Would you have a part number or I have same problem .
I'm about to venture into this same project. And though I can do this myself, watching you makes me think paying someone to do it for me might be the better option... Hey do you want a job? lol
Hiya yes I can do it for you, £80 + Shipping 👍
Hi mate, I have a 750 bafang and a freewheel that is very much not working well 😂 as the motor plug is too big I can’t use a freewheel tool easily, would doing this make it easier to get my freewheel off while having the cover and freewheel as my only other options are cutting freewheel tools until I can make it work or splicing the wire 😂 any help would be appreciated mqte
Cut the freewheel tool! It's the best way to do it. Mucking with the cable is a hideous job.
@@EbikeRepairs any tips on how to cut it to make it work, as my previous attempt failed
just a small thing, you can use soldering iron to shrink those.
True, I just prefer with a lighter :)
I have a bafang motor and the cable comes out the other side of the motor does this have another name
they do make clones! but they're very similar inside... :)
Hi, does anyone know what size screws or bolts are for the motor plate cover? Mine only has one screwed in. Thanks.
m4 or 5.
Sorry, I'm not sure.
Lord of the rings.. great video
😂😂😂 I wish!
Hi do you know if this could fit to work alongside the Bafang hub motor ?
this is a bafang hub :0
bro do you really wear 6 fucking rings while working?
Where did kyou order the cable
I ordered them from our supplier but can be found on AliExpress also
Hi can you help my 24v battery is not charged
Sure, shoot me an email
Pozdrav iz Hrvatske,mozes li mi pomoci nitko ovdje u mom gradu nezna koji je motor u mome engewe engine pro upgraded version x1.Udario me auto u zadnji kotac i moj motor vrti ali jako nesto lupa i ne mogu vozit.Kotac je ljevani nema zice 20-40, a ja neznam koji mi je motor i jeli ima isto takve zupcanike kao ovaj koji vi radite.Isto je 9 pincni kabal.e bicikl je kupljen 2023.godine.Hvala ako mozete pomoci pozdrav iz Zagreba.
Hi there I'm not sure sorry, maybe you can send a photo to the email address on www.ebikerepairs.co.uk and I'll and help! Thanks
Video starts at 12:30
I do waffle on 😂
Love the lighter
Hahaha my normal one is broken 💔
Nice one
Thanks 🔥
If that's a 750W my 250W rear hub on my folding bike is a 3000 watt one.
Perhaps it was just the camera perspective!
@@EbikeRepairs Or maybe its an inrunner instead of an outrunner? That would explain alot.
You could just replace the entire sensor board for a new one as they only cost a few Bob.
That's true! There are lots of different sensor boards though so not the same for every motor
@@EbikeRepairs thanks for replying to my comment. A sensor was faulty in my engwe engine pro 750 rear hub motor and a big shout out to inner city scooters Dublin Ireland for repairing it with a new board. I guess referencing the make and model would be a good start in acquiring the right part.
Hola a todos, alguien sabe como reprogramar ese motor, en el nivel 1 de asistencia se pone a casi 20 km/hora, en el nivel 2 se pone a 25, en el 3 a 30 y a mí me gustaría que en 1 se pusiera a 10 en el 2 se pusiera a 15 km/h en el 3 a 20 km/h y así sucesivamente …
Might not be possible, setting in controller/display not in motor.
You could have re used the original cut cable.
I could have! However I always replace the cable when a paying customer is involved for peace of mind 👍
Ok you impressed me and I’m sorry for my comment
Haha no worries 😃
Wow why don't they make it easier to replace that...unreal
Unfortunately the designers aren't the ones who fix stuff 😁
Finding those cables in the UK isn't easy. :(
Found a place, many lengths, ten quid . Odd , i wasn't looking but Google must have been lol
AliExpress.
Sorry, but that's a complete mess, why didn't you just cut off the new plug by about 5 centimeters and solder it to the old cable and seal it again with heat shrink tubing, it would have taken less than 5 minutes!?
Better idea, im about to do it, your not soldering 9 wires and sealing it all properly in 5 minutes though.
We all do things differently - this is the way I like to do it 👍
Sometimes it needs a whole new cable if it's damaged near the axle too, so I just always replace the entire thing. :)
Seems obvious. Zero forethought in what the other commenter described. If it wasn't for the exclamation points and tone of superiority I would've thought they were a complete noob asking a genuine question. That could've been a valuable teaching moment for them. You still gave them a nugget but I don't think they'll appreciate it until they learn the hard way@@EbikeRepairs
@@timothyliberty8052 we're all different - but if I paid someone to do this job and I got back some hot glued mess, I wouldn't like it - replacing the whole thing is a 100% sure fire way to make the job look clean and tidy
cool video, but get a heat gun for 30 quid my dude
For the heat shrink? I have hot air guns but I wanted to show off 😔
Haha fair enough!
will never understand why people solder wires together. Crimping is easier, more reliable, better at taking vibration
I think they both have their benefits! Space concerns inside this motor is a factor.
@@EbikeRepairscan do both
Power supply
?
Dude you have to take the rest of the motor out and apart to get the new wire in your doing it all wrong and weaning the axle by drilling It if you don’t know what your doing don’t make a video of doing it the wrong way
Haha no worries
A 07E error code is usually an error direction which would be a hall error and the solution is to check the connection. It can be anything from the Hall sensor or even a pinched wire. If I am correct the hall sensor would be a 41F.
All sorted now. New sensors and cable :) 41F is correct :)
@@EbikeRepairs cool glad it worked out for you bro! From crappy Canada!
@@EbikeRepairs was it a pain in the a$$$$$ to put that cable in? and where do you buy yours if you don't mind me asking??
it was a pain! direct from bafang - they're available on amazon/ebay easily, though.
@@EbikeRepairs cool thanks! Ya I wonder if its even worth replacing or spend another 400 bucks lol hummm
NICE WORK
Thank you! Cheers!