Question 1

is the red,green, black like the speed steering handle? Also, where in a controller would the blue and yellow connect to in theory, like to what name

Accepted Answer

a year later into ebike enthusiasm Im still thinking im headed in that same path. I did pass by a video called "How to tell what wires do on a board with no markings" or something like that. . . Added it to a watch soon list ... sigh ... I like this video but im still lost. 
I got this throttle: https://www.amazon.com/gp/product/B07YW954PN/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
that has 3 wires plus a yellow and blue wire.
 
The controller: https://www.amazon.com/gp/product/B07XMJC8S2/ref=ppx_yo_dt_b_asin_title_o01_s01?ie=UTF8&psc=1

And still uneasy and unsure about where to lpug the yellow and blue wire that come from the throttle.... SIGH
Seems a lot of ppl had luck using google translate but I cant get it on the dumb kindle i won from work. Theres no option for it on the PC (that i could find) and my phone is a cheap prepaid that takes blurry images.

Im finally about to enter the brushless world and feeling like i've never put together a scooter lol.

ok. connect yellow wire to thicker red wire on the power  connector from controller(which may have a red wire, black wire, and another thinner red wire.)
Yellow (throttle) to thicker red wire (power connector from controller).

*the thing that kept me from finally plugging stuff in*
Red wire from BATTERY gets connected to to these two wires, as well (yellow from throttle AND THICKER red wire on power connector  from controller) .
Black from BATTERY goes to black (power connector from controller)

Blue (throttle) goes to the THINNER red wire (power connector from controller)

from videos ive watched about "key switch"/"lock throttle lcd" they STRESS THAT YOU NOT CONFUSE THESE CONNECTIONS!!!!!!!!!!!!!!!!!!!!!.   
I turned the key, confident the connections were right and the lcd displayed the voltage. I turned the throttle and the tires spun!!   Tuned key off.  Now onto the other 100 wires.

Hoping to help someone

Question 2

What DC motor is cmopatiable with this?

Accepted Answer

The specifications on this throttle indicate it can be used with any 12-84V DC E-bike motor. By E-bike, it means electric bike, but it can be used to basically control "any DC motor in the voltage range specified".
The display will automatically read the voltage and display it, also rated up to 84V DC, or slightly higher voltage not to exceed 100V DC. This throttle can be used with DC motors that are either Brushed (have carbon brushes) or Brushless, therefore, it can be coupled with any "brushed or brush-less DC controller. The trick is making sure that the connections (the wires) from the throttle are compatible with the controller wiring. For this you will need to select the controller accordingly with your motor voltage requirements and try to match the connectors that are typically supplied with the controller. No two manufactures are alike when dealing with Chinese products therefore the connectors will probably not match. Not to panic, the solution is just making sure the throttle 3 wires on the throttle match the 3 wire designated "throttle" or sometimes labeled as "Throttle hall sensor" or POT (potentiometer) on the controller. I simply remove the stock connectors that do not match and install my own 3 pin connectors, or wire direct (splice the same wires and heat shrink to protect them) , making sure the wires match Red to Red (5V DC) Black to Black (GND) and Blue to Blue or (SIGNAL). Very similar to how RC Servos 3 pin wiring is done.
The key switch has 2 wires and it simply connects in similar fashion to the controller KEY or IGNITION connector or wiring. Again, check your controller wiring specifications and designations to be sure you know where to connect them correctly. Hope this helps

Question 3

Will this work on a nakto electric bike?

Accepted Answer

Don’t have one myself but wouldn’t see why not

Question 4

What is the screw size on the throttle to make it hold on the handle bar?

Accepted Answer

A metric Hex Head  M5-.8 x 10mm screw.

ASIN	B07YW954PN
Best Sellers Rank	#857,418 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #1,859 in Bike Grips
Brand	YWNYT
Brand Name	YWNYT
Color	black
Compatible with Vehicle Type	Bicycle, Scooter
Customer Reviews	4.1 out of 5 stars 451 Reviews
Item Dimensions L x W	7.87"L x 1.77"W
Item Weight	0.34 kg
Manufacturer Part Number	YU890
Material	Aluminum, Rubber
Material Type	Aluminum, Rubber
Number of Items	2
Number of Packs	1
Product Dimensions	7.87"L x 1.77"W
UPC	887966520939
Unit Count	2 Count
Vehicle Service Type	Bicycle, Scooter

1Pair E-Bike Throttle Grip,12-84V Universal Electric Bicycle Scooter Wire Twist Throttle Grip with LCD Battery Voltage Display Key Knock

Details

Details

Description

Specifications

Common Questions