General Information For Service - Honda Motorcycle Service Manual

BRAKES
To cope with the extreme heat typically generated in competi-
tion road racing, floating type discs have been developed. In
this system, a floating disc is installed by means of spring
washers and rivets or clevis pins with an aluminum carrier be-
tween the disc and the wheel. In this manner, deviations in
radial directions are permitted, distortion is prevented and
weight is reduced.
In addition t o the design basics already stated, discs are com-
monly drilled or grooved t o remove dust or dirt from the disc
surface, thereby preventing what are known as sympathetic
vibrations. Contrary t o popular belief, holes drilled i n the disc
do not significantly aid cooling. These holes are perpendicular
t o the flow of air so little additional cooling occurs.
1
FLOATING TYPE
Among the many combinations of materials used t o make
brake pads are: wear resistant resin, metallic mixtures, and
sintered metal. These materials are combined in brake pad
manufacturing according to the design requirements of the
particular application. Asbestos was dropped from use in pad
manufacturing by Honda beginning around 1985-86.
GENERAL INFORMATION FOR SERVICE
Just as disc brakes are used where greater than typical drum
brake stopping force is required, dual disc brakes l a disc on
both sides of a single wheel) are used where an even greater
braking capability or a smaller diameter front wheel is required.
.
Do
not allow dust, dirt, water or any foreign material t o
enter the system when refilling or replacing the brake fluid.
.
TO maintain proper sealing and initial fit, replace the parts
specified for replacement at the time of service. Replace the
required parts as a set, when specified, for the same
reason .
Clean the sliding surfaces of the brake pads and disc with
brake cleaner. Replace the pads if they are contaminated
with oil or grease, as this significantly reduces braking
force.
.
The brake calipers can be removed from the motorcycle and
the pads can be replaced without disconnecting the
hydraulic system.
DOUBLE DISC TYPE
Date of Issue: Nov., 1 9 8 9
O
HONDA MOTOR
CO.,
LTD.