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4- 11
ROCKER A R M
Rocker arms are
made from forged steel
and are
wholly sintered.
A screw for adjusting valve clearance is
provided at the end
of rocker arm.
Rocker arms are lubricated
by the oil mist
contained
in
the breathing air from
crankcase. (See Fig. lo.)
4- 1 2
ROCKER COVER
Rocker cover is made from steel sheet.
A breather plate is installed in the rocker
cover to breath air into intake port.
(See Fig. 1 1.)
4- 1 3
AUTOMATIC DECOMPRESSION
SYSTEM
Automatic decompression system
is com-
posed of a release lever and a flyweight
assembled to the comshaft.
Below the predetermined speed, the release
lever lifts the exhaust tappet slightly to
release compression.
(See
Fig. 12.)
FIG. 10
FIG.
1 1
/-
FIG. 12
- 8 -
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