8000w bike no throttle response!

DRB

1 mW
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Mar 26, 2025
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Enduropost
bought my 8000 watt bike used, the guy lead me to believe he bought it from Enduroebikes.ca but they had no record of my bike. So it's a clone from I don't know where. Brought it home drove it a bit, took battery in house because still winter, noticed back tire flat so took wheel off bike, fixed tire. Put all back together and no go, display lights up says battery fully charged but no throttle response. Any ideas from anyone?

Also I noticed the display has five wires, blue,red, black,yellow and green. The yellow and green have a connector, the red and black have a connector. But the blue wire is loose, could that be affecting the throttle? Don't see where it would possibly go! The other two connectors only have two wires on their opposite connectors.
 
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While it's not a standard, a slot of displays have battery/ground on red/black, Yellow/green are used for data between display and controller, Blue is 0 volts until the controller powers up. Then it switches to battery power. You can easily measure the blue if it's loose to see if that's what happens, Sounds like a bad idea to have battery power flopping around,
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The blue wire is usually connected back to the controller to turn on its internal logic. That might mean your bike has another way to turn on the controller (on/off switch?), Or it could be a broken wire,
 
While it's not a standard, a slot of displays have battery/ground on red/black, Yellow/green are used for data between display and controller, Blue is 0 volts until the controller powers up. Then it switches to battery power. You can easily measure the blue if it's loose to see if that's what happens, Sounds like a bad idea to have battery power flopping around,
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The blue wire is usually connected back to the controller to turn on its internal logic. That might mean your bike has another way to turn on the controller (on/off switch?), Or it could be a broken wire,
I'll go take a picture for you, and maybe you can tell me where you think it should go.
 

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The couple of suggestions below assume that your controller is turned on, and that you reconnected the motor matching how the conductors were connected prior to fixing the tire:

Since you removed the wheel, the first thing I'd check is the motor connectors to make sure they are seated. On the hall wire connector, check to see that the blades are all straight (sometimes they get misaligned and bent).

If you get the same results, then I would disconnect the brake cutoff sensors, if you have them, to see if they may be the cause.
 
Thanks I tried disconnecting the brakes, power is on, everything I believe is connected the way it was before. The only other thing is the controller is just strapped above my battery, it's a fight to get the he battery in. So I bent over the flaps on the controller on both sides which I guess is meant for mounting on some bikes with screws. After bending them as much as I could I lightly hammered them down further. Are the controllers very delicate, and I may have destroyed it by hammering?
 
Does the throttle work if you spin up the wheel first by hand or by hand cranking the pedals?

What kind of controller do you have?
 
Nice looking display. You're getting power to it, Those two connectors plug into it and there's no other jacks on the display? Blue lead comes out of the controller?

How do you turn the display on/off. Is there a button console that goes to it?

Is the controller powering up? Can you measure +5V on the throttle connector lead?
 
Sorry I didn't get back to you sooner, I've been trying to locate replacement parts for a reasonable price. But even that's not going well. So you asked if those two connectors plug into the display, the answer is no those wires come from the display. But yes the controller does have a matching green/yellow plug and also a matching red/black plug. The blue wire is coming from display unit, I am really hoping the blue serves no function. I ordered a new throttle hoping that solves my problem.

Warmer weather is coming so really hoping I can fix this. Canada Post is supposed to go on strike in May so I may not be able to get any other replacement parts. I fear I may have messed up my motor while struggling to replace the tube attempting not to punckcher the tube, which happened more than once.
 
There is a on/off button on side of bike that gives power to display. But the display won't light up until you put a fob next to it. Blue fob gives me the picture I posted, a red fob takes me to the settings where I can adjust things like max speed, throttle only, shut down temperature etc.
 
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