Electric Scooter Repair
Help > Speed Controller
Replacement Help
Speed Controller Replacement Help
Search for Speed Controller by Scooter or Bike Make and
Model
Many major brand-name electric scooters, electric bikes, and electric go
karts have easy to
install plug-and-play replacement speed controllers available in the
make and model
parts
area.
If a Replacement Speed Controller is Not Available
Most electric scooters, electric bikes, and electric go karts have speed
controllers which were made or wired specifically for that model. These speed
controllers may have connectors and or wiring patterns which are unique to that
particular model only. If a plug-and-play replacement speed controller is not
available then a speed controller with the same Voltage rating and an equal or
slightly higher Watts rating may be substituted for the original speed
controller as long as it is wired to the other parts of the vehicle as shown in
the new controller's wiring directions. Matching speed controller wiring connectors are available
on our wire
connectors
page. If
a Plug-and-Play Speed Controller is Available
If a speed controller is available that will plug-and-play directly
into an electric scooter or bike, however the speed controller is not listed
by make and model, be careful
when installing it because the connectors may be the same, however, the wiring patterns going to the connectors
may be different than that of the original controller. Double
check the wiring to make sure that it is correct before installing the
new controller. If the connectors are correct but the wiring going to
the connectors are incorrect the pins can be removed and installed in
different locations on the connector. To rearrange the pins inside
of
a connector, use a narrow metal rod to push-on and bend the pins locking
tab inside of the connector, and then gently pull the wire and pin out of the
back of the connector. Next bend the locking tab back to its original position
and insert the pin back into the connector in the desired location. When
the pin is fully inserted into the connector and the locking tab has
been correctly bent back into position the pin will make a small "snap"
or "pop" sound to let you know that it has been correctly installed. Speed
Controller Installation Tips
Before replacing the speed controller make sure that the key switch or
power switch is in the off position.
Disconnect the battery pack from the speed controller first
when removing a speed controller, and connect the battery pack to the
speed controller last when installing a speed controller.
Hang or block the rear wheel off the
ground, or remove the chain or belt from the motor before connecting
the battery pack to the speed controller. Sometimes due to
damaged or incorrect wiring or faulty electrical components the rear wheel might spin
uncontrollably when making the final wiring connection to the battery
pack.
Do not short-circuit the battery terminals
or wiring harness connector pins and make sure the batteries fit snuggly
into place and that all of the wiring and connectors are in good serviceable condition. |