6878215A01
5-6 Motorcycle Radio Installation Installing the Universal Mounting Plate
5.3 Installing the Universal Mounting Plate
The universal mounting plate, supplied with the motorcycle radio, must be mounted on the
motorcycle first. It provides the base on which the weather-resistant enclosure is to be mounted.
The method used for mounting the plate depends on the make and model of the motorcycle and
whether the plate is mounted to a carrier or to the motorcycle chassis. After the plate has been
securely mounted to the motorcycle, mounting the weather-resistant enclosure onto the plate is
straightforward.
Figure 5-2 illustrates the universal mounting plate mounted to a motorcycle carrier. Since there are
so many makes and models of motorcycles and motorcycle carriers, it is impossible to give specific
step-by-step instructions for mounting the universal mounting plate. However, noting the following
considerations will aid in the installation procedure.
• A minimum of holes are predrilled into this plate as supplied. Mounting holes must be drilled as
required for the particular motorcycle on which the plate is being mounted.
• The universal mounting plate should be mounted on the motorcycle in such a manner that the
later mounting of the weather-resistant enclosure will not interfere with the motorcycle seat
back, with any other obstacles, or with the motorcycle operator. The enclosure may be
temporarily bolted to the universal mounting plate and the unit positioned on the motorcycle to
ensure the above criteria are met.
• To ensure a good grounding path from the universal mounting plate to the motorcycle carrier or
frame, stainless steel lock washers must be used with the mounting hardware in two areas to
score through the paint on the universal mounting plate and on the carrier or frame, thereby,
providing good electrical contact with the underside of the motorcycle carrier or motorcycle
frame.
Figure 5-2. Universal Mounting Plate Installation (Part of Radio Enclosure Kit)
Follow the procedures below to mount the universal mounting plate to the motorcycle
(see Figure 5-2).
1. Determine the mounting position for the mounting plate.
2. Determine whether stainless steel spacers are required for clearance in mounting the plate.
3. Drill four 9/32-inch holes in the mounting plate and the corresponding motorcycle carrier or
chassis for mounting the plate.
4. Attach the universal mounting plate to the motorcycle using four machine screws, eight lock
washers, and four nuts. Tighten screws securely. The lock washers must cut through the
paint on the plate and motorcycle carrier or frame to ensure a good ground path.
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