Type B (Inner Push Type); Judder Spring Purpose; Damper Spring Purpose - Honda Motorcycle Service Manual

CLUTCH
Judder Spring Purpose
When the clutch lever is released t o engage the clutch, the
clutch discs and plates sometimes engage intermittently caus-
ing judder or vibration t o some degree.
To lessen this symptom, some models are equipped w i t h a jud-
der spring.
The clutch discs and plates are pressed by the judder spring
tension and each disc and plate engages smoothly.
A judder spring is not installed on motorcycles on which the
judder is not bothersome.
Damper Spring Purpose
When the engine is running, the combustion pressure that the
piston receives is applied t o the crankshaft intermittently and
the clutch outer primary driven gear receives the striking force
from every piston stroke.
Due t o the pulsing nature of the power input, a damper spring
is installed between the clutch outer and primary driven gear,
close t o the crankshaft.
The damper springs absorb the impact of the power pulses so
they are not transmitted through the rest of the drive line. The
drive train is thus protected from unnecessary damage and
overall vibration is reduced.
/
\
SPRING SEAT
JUDDER SPRING
DAMPER
I
TYPE B (INNER PUSH TYPE)
The clutch lifter mechanism of this type is equipped on t h e opposite side of the clutch, and is different from the type A.
The push rod is installed through the mainshaft and presses the clutch pressure plate located outside of the clutch outward to
disengage the clutch. All but the above characteristic are the same as type A.
a
CLUTC' H PRESSURE
PLATE
Power transmission and operating principle are the same as type A (see page 11-2).
Date of Issue: Sep.. 1988
o
HONDA MOTOR CO., LTD.
11-3