Specifications

4) SPEED CONTROLLER AND SOLENOID REMOVAL:

Directly below the passenger’s seat you will ﬁnd a black

plastic cover… this is called the controller cover. The cover

is secured using four hex head machine bolts. Remove these

bolts using a 3/8” socket with the appropriate extension.

Underneath the cover you will notice the speed controller and

the solenoid. The speed controller is the small metal box and

the solenoid is the cylindrical device mounted on top of the

controller. Begin the removal of these components by ﬁrst

discharging the speed controller. Using a standard screwdriver

bridge the terminals marked “B-” and “B+”. You may see

or hear a small spark and this is normal, and is an indicator

that the capacitors inside the speed controller have been

discharged. Let’s begin with the SOLENOID (the cylindrical

device). You will notice it has two large lugs and two smaller

lugs. You will be replacing all the cables on the large lugs

with cables from our new Performance Enhancement Kit,

but the wires attached to each of the smaller lugs will be kept

and reattached to the new solenoid. Don’t forget to use the

opposing wrench technique when removing these wires and

cables. Moving on to the SPEED CONTROLLER. You will

notice it has three large ﬂat buss bars and one 6-pin Molex

connector. The Molex connector may have a small tab which

needs to be depressed in order to pull the connector from the

speed controller (4c). Do not pull the Molex connector by the

wires… grip the body of the connector and wiggle it back and

forth as you pull outward. Just like on the solenoid, you will

be replacing the large cables on the speed controller with new

cables from our STQ EZ9 2001 Performance Enhancement

Kit, but the smaller wires in the 6-pin Molex connector

will be retained and reinstalled on the new speed controller.

Remember to use the opposing wrench technique, and to avoid

twisting or bending of the buss bars. Once all of the wires

and cables have been disconnected, release the mounting

hardware of the controller and the solenoid and remove those

components from the cart. Retain the 3 metric bolts, which

hold the controller, as they will be used later.

Controller

Cover

4a. Controller Cover (On)

4b. Controller Cover (Off)

4c. 6-Pin Molex Connector Removal

Solenoid

Controller

Molex Connector