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You will have the display disconnected and discarded, so nothing to do to it, The capacitor is in the controller and will hold battery voltage on the red and black wires coming out of the controller to the LCD. Those wires are directly connected to the red and black battery wires, so you can...

Can you get them changed to Marathon Plus?

A digital multi-meter, like this. Without one, you've got virtually no chance of sortin your bike...

I think the battery is insufficient for the job. That will be confirmed when you check the controller. The panel to remove is the one running along the bottom of the bike with the pedals sticking through it. You might have to remove other panels first if they overlap it.

Yes, I changed my life. I stopped listening to the radio and I haven't watched TV for 18 months. As far as I'm concerned the world is cured of Covid without all the propaganda. There's now more people getting killed by the vaccine than the virus. Here is the true data on that from the official...

Do you have any evidence of that, are you spreading an urban myth or is it something you invented?

You shouldn't need to adjust anything in the settings. It'll work fine straight out of the box. The type of motor makes no difference. There are some settings you can adjust to suit your choice. P3=1 for PAS current control (recommended) and P3=0 for PAS speed control, where each level gives a...

I think Neal must be missing a bit of sleep regarding that blue wire He spends a lot of time worrying about your ebike problems when he's trying to get to sleep, so be kind to him. The blue wire is the one that powers the controller. It looks like your display has crapped out for whatever...

You could just drill two holes in your steering head and pop it in.

https://www.aliexpress.com/i/32883554218.html

If it's like the ones I used to fix, you have to drop the panel at the bottom, then you'll find the controller attached to the frame. The key-slots are obviously for a key. It looks like one locks the back brake and the other switches off the power. How do you switch off the power at the moment?

Do you have a meter to test it with?

That switch is on the BMS. It switches off the output mosfets, like I described above. The BMS is just a smart-switch. It looks at various inputs; like cell voltages, switch state, temperature; then decides whether to open or close the mosfets, which are just electronic switches. The BMS can be...

OK, we have everything now. The battery is OK, thankfully. The charger is a bit on the low side. It should be 54.6v, but your meter might not be very accurate, so nothing to worry about. The only important thing would be to get the correct connector and charge through the jack socket; however...

It doesn't work like that. The system is controlled by a cpu, which has a series of inputs and outputs. It works at 5v, like most cpus and other digital devices. The cpu is checking the pin that the brakeswitches are connected in parallel to. That pin gets a feed from a normal 5v through a high...

I would bet that it's already had a replacement motor. Assuming that it's a few years old nd not the latest version, the weak point is the main bearing where the crank spindle exits on the right side behind the small chainwheel. That arrangement is not sufficiently waterproof, so muddy grime...

It looks a bit dodgy to me. It's made of plastic. How can you tighten the bolts that go through it and clamp the inner chain ring?

That's the setting for AC volts. You measure the charger with the same 200v setting as you used to measure the battery, which is the 200v at the 11 o'clock position. We need the decimal from this measurement. The battery measurements show that it's nicely balanced. The 200v scale should give a...

I lterally threw one of those out today. I held it in my hand for a long time before I decided that I'd never use it, then I chucked it. It's in one of about 8 bin bags that I filled when I cleared out my rat infested shed. You're welcome to come to Telford and get it if you're quick, as the...

See if this helps on page 45/46, otherwise find the correct manual and download it: https://www.ghost-bikes.com/fileadmin/user_upload/Downloads/Yamaha/MY2020_YAMAHA_MANUAL_EN_ENGLISH.pdf