Half throttle 4 wire

Parsons

Pedelecer
Jul 11, 2018
107
10
46
Hi guy just swapped out my full twist throttle to half as I broke. Buts thay Sent one with status got 4wire not 3 black yellow green red but my controller is red black green been looking says not to use yellow but still not working useing a s900 display
 

vfr400

Esteemed Pedelecer
Jun 12, 2011
3,965
1,334
Basildon
There are only two possibilities: green or yellow. If one doesn't work, try the other.

If you want to test that the rest of the bike is working, lift the motor wheel off the ground, switch on, then short the red wire to the green one on the controller. That should make the motor kick up to full speed.
 

jokskot

Pedelecer
Jul 14, 2018
62
16
71
Agree with the above. If your new throttle has an led, lcd or other display, the battery voltage can be shown by connecting the fourth"unused" wire which is most likely to be the yellow one.
 

Parsons

Pedelecer
Jul 11, 2018
107
10
46
Will take a look at the setting on the display 0 is off but 1to 5 the same speed unless the factory settings is wrong I. The display
 

vfr400

Esteemed Pedelecer
Jun 12, 2011
3,965
1,334
Basildon
Will take a look at the setting on the display 0 is off but 1to 5 the same speed unless the factory settings is wrong I. The display
Just in case you don't know, the PAS setting on the LCD has no effect on the throttle. It only affects the pedal assist.
 

Parsons

Pedelecer
Jul 11, 2018
107
10
46
I mate yes I know but the the pedal assist iam having the problem with same power levels 1 to 5 it should be different power levels
 

vfr400

Esteemed Pedelecer
Jun 12, 2011
3,965
1,334
Basildon
I mate yes I know but the the pedal assist iam having the problem with same power levels 1 to 5 it should be different power levels
Most controllers use speed control for the PAS, so power is always the same on all levels. The levels set a different speed limit on each level.
 

Parsons

Pedelecer
Jul 11, 2018
107
10
46
I know that but I all ways thought that pedal assist is at different power speed levels not the same across the board
What's pissed me off sorry for the language when I got the kit I only got it with the lcd on the throttle no control on the pedal assist so got a new matching controller with sw900 hoping this will help but no still full pedal assist power
 

vfr400

Esteemed Pedelecer
Jun 12, 2011
3,965
1,334
Basildon
I always tell people to buy a KT controller and LCD3 because they have power control. Other controllers mainly have speed control.
 

Parsons

Pedelecer
Jul 11, 2018
107
10
46
This was my old old Controller not a kt but had differnt power levels
#Aliexpress £26.63 25%OFF | 800W/500W 24V/ 36V/ 48V MOFSET Brushless Motor Controller E-bike Scooter BLDC Controller With Regenerative and Reverse Function