do not buy any yalu engine, they are rubbish mine has broken in 3 days, you did not waste money.

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juanjo   1 mW

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do not buy any yalu engine, they are rubbish mine has broken in 3 days, you did not waste money.

Post by juanjo » Jan 25 2021 12:46pm

do not buy any yalu engine, they are rubbish mine has broken in 3 days, you did not waste money.

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Re: My1020 / Kunray / YaLU 1000 - 2000W motor ?

Post by ShadowNightmares » Jan 25 2021 1:01pm

juanjo wrote:
Jan 25 2021 12:46pm
do not buy any yalu engine, they are rubbish mine has broken in 3 days, you did not waste money.
Broken in 3 days? What about warranty?

SlowCo   1 MW

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Re: YALU motor "2020"

Post by SlowCo » Jan 25 2021 1:46pm

juanjo wrote:
Jan 25 2021 12:46pm
do not buy any yalu engine, they are rubbish mine has broken in 3 days, you did not waste money.
What has "broken"? Maybe we can help fix it?

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Re: YALU New BBS-Style mid drive kit with external controler

Post by SlowCo » Jan 25 2021 1:49pm

juanjo wrote:
Jan 25 2021 12:44pm
do not buy any yalu engine, they are rubbish mine has broken in 3 days, you did not waste money.
What has broken?

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Re: YALU New BBS-Style mid drive kit with external controler

Post by juanjo » Jan 25 2021 5:03pm

if going uphill, it has very small and fine gears, don't buy any yalu, they are garbage

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Re: YALU motor "2020"

Post by juanjo » Jan 25 2021 5:06pm

the gears, they are very fine, it's rubbish, don't buy it

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Re: My1020 / Kunray / YaLU 1000 - 2000W motor ?

Post by juanjo » Jan 25 2021 5:08pm

I do not know if it has a guarantee but the shipping costs are paid by the buyer, the engine already came that made a very strange noise, I made a complaint and they ignored me, do not buy any yalu engine, they are garbage

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Re: YALU motor "2020"

Post by SlowCo » Jan 25 2021 5:41pm

juanjo wrote:
Jan 25 2021 5:06pm
the gears, they are very fine, it's rubbish, don't buy it
Any photo's you can upload for us to examine? Would be a good visual warning.

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Re: YALU New BBS-Style mid drive kit with external controler

Post by SlowCo » Jan 25 2021 5:43pm

juanjo wrote:
Jan 25 2021 5:03pm
if going uphill, it has very small and fine gears, don't buy any yalu, they are garbage
Have the gear teeth broken off or something else went wrong with them maybe? Some photo's to show what has been broken would be great, thanks.

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Dauntless   100 GW

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Re: do not buy any yalu engine, they are rubbish mine has broken in 3 days, you did not waste money.

Post by Dauntless » Jan 25 2021 11:44pm

I'll tell you what. The kind of explanation people are looking for is mostly covered if you answer these questions:

Did you buy a whole bike? A kit? Miscellaneous parts you installed yourself?

Are these "Fine gears" slipping as you go uphill? Chain or belt drive? Are you sure it's not a freewheel that's slipping?

Does the motor itself seem to run okay and the problem is the gears? (Slipping can make the motor rev funny but that's not a malfunction.)

Your explanation might lead to more questions, but we're left to guess that your only complaint might be the slipping, maybe something is just loose, etc. We need a better idea of your problem.

I know it's frustrating, but think of the fun you can work your way up to. https://endless-sphere.com/forums/viewt ... 2&t=109246
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markz   100 GW

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Re: do not buy any yalu engine, they are rubbish mine has broken in 3 days, you did not waste money.

Post by markz » Jan 26 2021 4:47am

I wouldnt be waiting by the computer to see what the response will be Daunty.

From December 5, 2020 6 out of 7 posts were Yalu one on gng, half were duplicate posts.

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Re: do not buy any yalu engine, they are rubbish mine has broken in 3 days, you did not waste money.

Post by _GonZo_ » Jan 26 2021 6:54am

Yalu is not a motor manufacturer, is a whole sales distributor, and they do some retail sales by Alibaba and Aliexpess.
One of the main brands they represent is Unitemotors. This brand produce very good motors for what are designed for, and they are produced in magnitudes of hundreds of thousands for Asian markets mostly.
I have used Unitedmotors and they extremely reliable. Not only the motor itself but as well the gearboxes they come with.

So unless the post creator give more information it is imposible to know what motor brand he is referring to...

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Re: do not buy any yalu engine, they are rubbish mine has broken in 3 days, you did not waste money.

Post by juanjo » Jan 26 2021 6:58am

I don't know how the photos are uploaded

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Re: do not buy any yalu engine, they are rubbish mine has broken in 3 days, you did not waste money.

Post by juanjo » Jan 26 2021 7:05am

I only have a photo of the motor when I connect it and the amount of aluminum shavings detached from the pinion, the motor I cannot return it because I have to pay the shipping costs, and shipping from Spain to China is a lot of money. a hellish noise crash crash crash.when there will be the cover of the gears they had olgura and I did not see any way to be able to tighten the gears.when I saw the gears I was amazed at the teeth so fine it has, I am not saying that the gears are broken But the noise it makes shows that the gears do not fit well and in 3 days it made much more noise, and I have disassembled the engine before it dumped me.

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Re: do not buy any yalu engine, they are rubbish mine has broken in 3 days, you did not waste money.

Post by _GonZo_ » Jan 26 2021 2:25pm

juanjo wrote:
Jan 26 2021 6:58am
I don't know how the photos are uploaded
Las fotos las puedes añadir en la pestaña que sale abajo (Attachements) cuando creas un hilo o respondes.
También puedes poner el enlace al producto donde lo compraste.

Pictures can be uploaded in the attachemts tab below when you create/reply to a post.
As well you can post a link to the product where you bought it.

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Re: do not buy any yalu engine, they are rubbish mine has broken in 3 days, you did not waste money.

Post by Dauntless » Jan 26 2021 2:46pm

markz wrote:
Jan 26 2021 4:47am
I wouldnt be waiting by the computer to see what the response will be Daunty.

From December 5, 2020 6 out of 7 posts were Yalu one on gng, half were duplicate posts.
Oh, but you'll let everyone else wait after you get me to safety.

I think _GonZo_ is on the right track, pure communication gap from the language problem.

Illustration on uploading pics.

And this is his kit he posted a link to elsewhere. https://www.gngebike.com/60v650w-brushless
PostPic.jpg
PostPic.jpg (106.03 KiB) Viewed 369 times
Last edited by Dauntless on Jan 26 2021 6:37pm, edited 1 time in total.
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markz   100 GW

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Re: do not buy any yalu engine, they are rubbish mine has broken in 3 days, you did not waste money.

Post by markz » Jan 26 2021 3:05pm

Its implied that everyone else was included. Subtleties.
I try to look beyond the communication gap/ESL, duplicate posts and the reason for signing up - To plaster 3 unique posts for defamation purposes. But maybe I am just looking too deeply into the sun.

Dauntless wrote:
Jan 26 2021 2:46pm
markz wrote:
Jan 26 2021 4:47am
I wouldnt be waiting by the computer to see what the response will be Daunty.

From December 5, 2020 6 out of 7 posts were Yalu one on gng, half were duplicate posts.
Oh, but you'll let everyone else wait after you get me to safety.

I think _GonZo_ is on the right track, pure communication gap from the language problem.

Illustration on uploading pics.

And this is his kit he posted a link to elsewhere.

PostPic.jpg

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Dauntless   100 GW

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Re: do not buy any yalu engine, they are rubbish mine has broken in 3 days, you did not waste money.

Post by Dauntless » Jan 26 2021 3:11pm

You never know. If he feels he's been burned defamation might seem like his only outlet.
Any sufficiently advanced technology is INDISTINGUISHABLE FROM MAGIC!
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Re: do not buy any yalu engine, they are rubbish mine has broken in 3 days, you did not waste money.

Post by juanjo » Jan 26 2021 3:41pm

watch that aluminum chips come out when accelerating
Attachments
IMG20210122153854.jpg
watch that aluminum chips come out when accelerating
IMG20210122153854.jpg (2.62 MiB) Viewed 361 times

juanjo   1 mW

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Re: do not buy any yalu engine, they are rubbish mine has broken in 3 days, you did not waste money.

Post by juanjo » Jan 26 2021 3:42pm

If you can upload video I will upload it so you can hear the noise it makes


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Re: do not buy any yalu engine, they are rubbish mine has broken in 3 days, you did not waste money.

Post by SlowCo » Jan 26 2021 5:55pm

That is the exactly motor I have on my wish list on AliExpress... :shock:
The way the shavings seem to have fallen out of the freewheel could it be that the motor and gearing inside are not broken but only the freewheel is? Have you unbolted the freewheel and run the motor without it? Like this:

Yalu reduction motor.jpg
Yalu reduction motor.jpg (69.78 KiB) Viewed 345 times

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Dauntless   100 GW

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Re: do not buy any yalu engine, they are rubbish mine has broken in 3 days, you did not waste money.

Post by Dauntless » Jan 26 2021 6:46pm

I would expect that freewheel would already be seized or slipping freely both ways. So far that would make sense. The pinion looks fine but it looks like the chips are coming from right there.

The animated GIF on the site is for a different kit, I don't know what direction that motor spins. I'd say those 2 holes, each side, that's to take the freewheel apart, but it might turn either way to come off. If you look in that you might see your problem.

If you understand that the motor spinning is supposed to hold it tight, you can figure out how to loosen that top.
Any sufficiently advanced technology is INDISTINGUISHABLE FROM MAGIC!
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Re: do not buy any yalu engine, they are rubbish mine has broken in 3 days, you did not waste money.

Post by HrKlev » Jan 27 2021 2:29am

It looks like a brushless version of the MY1016, which really does sound like a coffee-grinder. If the chips are from the freewheel it might be just the "normal" noise from the motor :?
DIY lightweight mid drive with torque sensing build thread: viewtopic.php?f=6&t=107622

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Dauntless   100 GW

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Re: do not buy any yalu engine, they are rubbish mine has broken in 3 days, you did not waste money.

Post by Dauntless » Jan 27 2021 3:46pm

He could send them that picture and see if he can get a new freewheel out of them.
Any sufficiently advanced technology is INDISTINGUISHABLE FROM MAGIC!
- Arthur C. Clarke

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