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Okay great at least I know what the motor will kind of look like now from inside. Thanks for all your time and help

It It only spins internally for about 30 sec or so before the motor dies completely and then have to wait 10 mins before you can cycle again on assistance. No not yet have not had chance to open the motor or do any further tests ,as bike is now working perfectly with new motor however have...

Okay thanks, I will review your previous posts. As you mentioned something about controlled out of sync with motor, I thought this was a new issue that has not been discussed before?

Okay sounds feasible , what would cause that stalling issue then ? As I know the controller is fine with the other motor , bike is going well and have done over 40 miles with no issues

I think I did this, and the current was the same, maxed out at 5 bars. I am going to see if I can upload this video that I took to show you the effect This is me trying to use walk mode , and you will see current jumps up to max but bike does not move etc even though it says 3.6mph on display...

Yes, that is exactly it .. it feels like the motor is just free spinning inside and then you see on the display full current usage of 5 bars. The wheel does not move, even if you lift the back of the bike up .. Then after that 30sec spinning it just grinds to a halt and needs to be powered off...

This is the spec from there website, not sure if it helps in anyway .. but I do think it is much smoother operation wise then the cheap Bafang 250 10D model .. which is the lowest entry one they do .. :( Technical Parameters Drawing Gear motor Rated Voltage(V):24/36/48 Rated...

Where is the clutch inside the motor? Is this easy to replace? And if that is the issue , would you expect the motor to work say 5 miles without any issues and then an incline or load comes along motor cuts out but trying to work as you can see it soaking up the current. Then shutting it all...

Okay, I dont believe I have damaged wire from the motor but not ruling that out and will need to check. But then if that was the case, I would have expected the motor not to work at all etc, only seems to cause issues when the motor needs to work harder ... I think the motor heats up and then...

Okay thanks, I think I understand what I need to do now

Yes, it frees without any issues etc and no noises at all. When the motor starts to play up the current peaks out at 5 bars on display and motor does not spin, or just overspins internally as the wheel does not turn. Cannot even perform walk mode. Yes , that is a good idea but for now I will...

Thanks, the bike is so much fun. The motor is from 250w - 350w, so are you saying that the motor will be still working at 350w even though I can limit the speed down to 15.5MPH , the legal speed for ebikes in the UK. The motor has no badging of power, just says MXUS on the hub and model...

Hey all, I have now cancelled my order with pswpower as it looks like the controller was not at fault at all. It was actually the motor. BTW, the new mxus motor is good, seems to tackle all the inclines and is upto 350w power too if I want. The bike just works so good now. Although in UK...

No, how do you perform that test?

Hey All, A quick update! I managed to take the bike out with the new MXUS motor installed and done nearly 20 miles with not a single problem, the bike just worked when I needed motor assistance. So it has to be the old Bafang motor that has developed the fault, I must have over loaded it with...

Ak ok, they were all blank as far I can remember, that now makes sense why there was 7 of those , as normally the mosfet's comes in pairs right? A neg and pos pair. It had very little paste, like a greyish dust came off my fingers. Should I buy a tube of thermal paste and try putting some...

Hey Wheezy, I think I found the Mosfets used in my controller...

This is the clearest picture I was able to get for the numbers stamped on the Mosfet. Maybe you may now what make and type this is from your experience .. I'm still a newby .. lol !

@Ross - I have ordered the same controller you have, KT-LCD3, plus the light/horn and throttle. It says it should arrive in 3-5 days using DHL Express. I don't want to damage this new motor using the existing "suspect" speed controller, so will now wait for new controller and hopefully I...

Thanks for all this information, really useful stuff. So I am thinking of ordering the following components, as the other stuff I have on the bike or do I need to get anything else you think which is not compatible with the bike ?