Not to sure to be honest, I’d imagine from new and I think it’s a 2022 model so prob 3/4 years old (could be 2021). There’s one motor on there, not pw st I think it’s like pw tx or smth for 250 130 miles on it. But I’ll have a mess with mine for now. See if anything’s out of the ordinary
Yamaha PW-ST Motor Jerky
- Thread starter E-bobby
- Start date
The Bosch one only costs 25 Euro retail online here and the Yamaha one 28 Euro both plus 6 postage so 45 quid seems expensive but no idea how prices are over there.
Yeah little bit more over here, I just hope I can try and fix this motor could just be something rubbing or some dirt etc.
Hi all, just had a break from the haibike for a day and found that if I hold the power button and the down button (-) it goes into diagnostics mode, (Pc) can I buy a diagnostics tool and if so anyone got any recommendations for one that’s cheap and works, if it tells me error codes, if not then probably not worth it. Just so I get pointed in right direction. Thanks all
Ok thanks for that, yeah I did the sensor and didn’t sort I’m not sure how to test the display to see if the sensor signals getting there, is there a way to do that? Also I will probably start taking the motor apart through the week with the help of the video you sent. Thanks mate
Yeah, I don’t just want to go guessing and buy a display. I think the best bet is to probably take it to a bike shop nd see if they can see the error code. I’ll probably take the motor apart first as it sounds a little clunky sometimes.
Hi E-bobby
How did you get on with your Yamaha motor?
Mine is doing the same thing (flashing odometer, 0 for the speed etc).
Like you, I've had a lot more than 300 miles of use out of it before this happened.
Cheers
Last edited:
If you have checked it's not the speed sensor/magnet, then diagnostics at a dealer is almost certainly the next step. Bite the bullet!
Yeah, I've tried a new speed sensor and it hasn't helped.
My Haibike Trekking 4 Crossbar 2022 with a "Yamaha PW-TE System, 250W, 60Nm, 25km/h" motor just went into this mode recently when I was doing an off-road hill climb I'd done many times previously with zero issues.
This is the bike:
Haibike Trekking 4 Crossbar 2022 – e-bikeshop.co.uk
The all new Haibike Trekking 4 Electric Bike 2022 Crossbar Yamaha driven Electric hybrid trekking bike .
www.e-bikeshop.co.uk
I've seen about a dozen reports of this exact same issue on various forums. Many of them were fixed under warranty with a straight motor swap. Which suggests it's the motor that causes this particular issue. One that claimed the problem was that "the motor no longer detects the battery".
This specific issue doesn't seem like something related to the speed sensor as you don't even get a chance to have the system detect the sensor. As soon as you turn the bike on, the odometer just flashes, and the speed sits at zero.
I've seen a lot of reports of it happening when people have tried to bypass the speed restriction. It seems like it's software that kicks the bike into 'limp mode' if it detects you trying to do that, or in my case, via some kind of malfunction as I've done about 5000 miles on this Haibike and never messed with the restriction. The bike is totally vanilla.
It would seem a bit bizarre if this is an intentional disabling of the bike and there's no way to easily get it out of 'limp mode' via the control panel.
A lot of reports on this seem to have happened around the initial 300-mile mark, which means people could get the motor swapped out for one that doesn't have this issue under warranty. It seems a bit harsh to have it happen when the bike is out of warranty, so you have to cover some kind of software malfunction out of your own pocket.
I've seen no reports of anyone who's had this error having it again after the motor swap, so it seems like there possibly was a "bad batch" of Yamaha PW motors around 2002/2003.
As a follow-up...
I spoke to Haibike and they've said I have to take it to a "local" dealer for a diagnostic. This would make owning a Habike in most parts of the Scottish Highlands impossible without also owning a car. Probably other rural parts of the UK too. It seems to defeat the purpose of selling your car and relying on an ebike instead, which is what I did.
I'd have thought you could just remove the motor and send it to Haibike or possibly even Yamaha. Everyone has access to the postal service in the UK. Even on the remotest of islands.
I've added as much info about this experience as possible so that anyone else who's unlucky enough to have this happen can get all the info about how to handle it in one post/place.
I spoke to Haibike and they've said I have to take it to a "local" dealer for a diagnostic. This would make owning a Habike in most parts of the Scottish Highlands impossible without also owning a car. Probably other rural parts of the UK too. It seems to defeat the purpose of selling your car and relying on an ebike instead, which is what I did.
I'd have thought you could just remove the motor and send it to Haibike or possibly even Yamaha. Everyone has access to the postal service in the UK. Even on the remotest of islands.
I've added as much info about this experience as possible so that anyone else who's unlucky enough to have this happen can get all the info about how to handle it in one post/place.
Consumer rights extend beyond warranty: fit for purpose, known issue, expensive item etc.. Good luck!
So I’ve just phoned a specialist today and he said that it’s the pcb board that is in the motor. I had a look at mine and it looks perfect but he says one of the sensors has probably gone on it and it doesn’t show any signs of usage or burns etc. Hope this helps. Kind regards
Yes my local dealer said you just bring the motor in to them and they actually don’t do it themselves they send it to someone, not sure who and they inspect the pcb board and tell you a quote, he said usually it’s 400-500. Personally I am going to wait for a motor to pop up on eBay as this one’s done 10000 miles and the bearings are probably about to be gone. I did see a pw te on eBay for 250 and it only had 160 miles. Regards
Thanks for the advice. I've had a look online and found the following:
Taking E-bobby's post above into consideration, I suppose we'd be looking at whether the PCB becoming faulty within circa three and a half years to be normal wear and tear. As there are no moving parts, I would probably say not as a consumer/layman.
Sounds like a good plan. My motor has probably done about 5000 miles or so. £250 for one that's done 160 miles seems like a bargain.
Yamaha Printed Circuit Board Price From - eBike Motor Centre (Performance Line Bearings)
Yamaha printed circuit board These are a genuine Yamaha part. This is the printed circuit board (PCB) used inside the motor to control the motor itself. The PCB can fail or become damaged by water or battery issues. NOTE: In order to supply you the right part, please contact us with the letters...
www.ebikemotorcentre.com
there the only place in the uk that service these motors all you have to do is remove it and they will send someone to pick it up and then give you a quote to fix itt or do it ur self and just buy the parts
Mine is about 4 years old and he still said that there is no symptoms that they are gonna go and you can’t expect it to go it just goes it must be at any random point. He said he’s dealt with a couple haibike a like that and that’s been the issue all the time. Hope you get yours fixed. Regards
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