Dunarri THR3-24 Installation Instructions

Installation Instructions

Dunarri Throttle w/Key Switch for electric scooters and ebikes
Model: THR3-24 / THR3-36 / THR4-48

Preparation

Follow these instructions carefully. Incorrect connections could destroy the throttle
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or cause the scooter to run wide open. For safety, place something under the
drive wheel so it cannot move.
Make sure the scooter is off and unplug the battery pack connector.
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Mount the pieces

1. Disconnect your old throttle from the ECM / controller and remove the wire from the enclosed area.
2. Unwrap the wire wraps holding the wires together.
3. Remove the old grip (if there is one) from the throttle side of the handlebars. It may require a lot of twisting and pulling to get it
off.
4. Once the grip is off, use an allen wrench to loosen the nut on the old throttle, then slide the throttle off the bar.
5. Now slide the new 5 LED Throttle on to the handlebar where the old throttle and grip were. It can be secured by tightening the
nut under it with a 3mm allen wrench.
6. Pull the new throttle's wire back in to the enclosure where you removed the old one.

Making the connections

7. Your throttle shipped with a 6 pin male connector housing which is most commonly found on electric scooters and bikes. If your
controller uses one of this connector it should be a simple matter of sliding the pins in to the correct slots. The wires on your
new throttle are as follows:
red = throttle +5V
black = ground
white = throttle signal
green = switch hot, connect to the power / lock pin from the controller that always has voltage
yellow = switch return, connect to the power / lock pin from the controller that turns it on
* If the lights on the throttle are always on even with the key removed, you have green and yellow hooked up backwards.
Here is an example :