Help! Changing throttle

[davell]

Evening, I'm looking to change my throttle from a wuxing 130x to a 108x as the 108 looks to be more waterproof. My handlebar configuration needs a left hand throttle. I managed to find a left hand but not from my controller supplier (topbikekit only supply RH version of 108x).
When I connect the new throttle my KT controller gives a throttle error so for now I have unplugged and put the 130x back on. I suspect the wiring order may be different. Is there any way to identify the correct order? I'm reluctant to use trial and error as I don't want to blow anything.
The connectors are 3-pin Julet so I can't easily see any wire colours at the controller end.
I'm surprised that the same connector would be wired differently from another supplier.
I could use a meter on the pins in the connector from the controller but not sure what values to look for or if this is even possible.

 

[vfr400]

Cut the connectors off so that you can see the colour of the wires, then solder them directly. You don't need connectors.

 

[Nealh]

Julets use a std wire layout/orientation.
For the Yellow 3 pin male connector looking at pins head on Gnd /Black is opposite the little alignment indicator , White/ Sig is lhs and Red/5v is rhs.
Female looking at the pins head on is Gnd/Black opposite the alignment indicator, White/Sig is rhs and Red/5v lhs.

Double check and make sure one connector isn't a Higo.

 

[davell]

Thanks nealh. Looking at the new plug on the throttle it says 8fun so physically the same plug but not marked Julet

 

[wheeliepete]

Thanks nealh. Looking at the new plug on the throttle it says 8fun so physically the same plug but not marked Julet

8 fun is Bafang who use Higo connectors which are wired differently. You may have trouble finding a L/H 108x with a Julet plug.

 

[davell]

That explains it then. The connectors still appear to fit together ok but are clearly wired up differently. Looks like time to get the soldering iron out

 

[Nealh]

Higo and Julet do mate perfectly but they are wired different, Higo I think is a Belgian company. 8Fun / Bafang are one and the same they use Higo.

I have a LH 108X on my KT equipped bike.

They are on Ali Exp.

EJOYQI Wuxing Thumb Throttle 108X Ebike Trigger Throttle Plastic Finger Throttle 24V 36V 48V 60V 72V Left Right Thumb Throttle - AliExpress 18

Smarter Shopping, Better Living! Aliexpress.com

www.aliexpress.com

 

[wheeliepete]

I've not tried it, but you could prob. rewire the one you have if you can open the throttle casing if you wish to keep the connector.

 

[Nealh]

At least three China sellers of Wuxing 108x -L julet on ebay.

E Bike Thumb Throttle 108X Handbar Waterproof For Electric Bike Replacement New | eBay

Find many great new & used options and get the best deals for E Bike Thumb Throttle 108X Handbar Waterproof For Electric Bike Replacement New at the best online prices at eBay! Free delivery for many products!

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E Bike Thumb Throttle 108X Handbar Waterproof For Electric Bike Replacement New | eBay

Find many great new & used options and get the best deals for E Bike Thumb Throttle 108X Handbar Waterproof For Electric Bike Replacement New at the best online prices at eBay! Free delivery for many products!

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Thumb Throttle Grip, 108X/L E‑Bike Left Electric Governing Thumb Throttle Grip | eBay

Find many great new & used options and get the best deals for Thumb Throttle Grip, 108X/L E‑Bike Left Electric Governing Thumb Throttle Grip at the best online prices at eBay! Free delivery for many products!

www.ebay.co.uk

 

[davell]

Julets use a std wire layout/orientation.
For the Yellow 3 pin male connector looking at pins head on Gnd /Black is opposite the little alignment indicator , White/ Sig is lhs and Red/5v is rhs.
Female looking at the pins head on is Gnd/Black opposite the alignment indicator, White/Sig is rhs and Red/5v lhs.

Double check and make sure one connector isn't a Higo.

Is that with the alignment indicator top or bottom ??

 

[Nealh]

Is that with the alignment indicator top or bottom ??

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