81700·82100·82400
WSM,11770
(12) Muffler
1
ENGINE
The
muffler
consists
of
an inner
tube
(1)
with
a
series
of
holes and
outer
tube
(2).
The exhaust noises are absorbed and
dumped,
while
the
gas
pass
through
a series
of
holes on
the
innertube
(1).
8177F103
[3] LUBRICATING SYSTEM
(1) General
(1)
InnerTube
(2)
Outer
Tube
(3) Exhaust Tube
4
6
8177F104
The
lubricating
system
within
this
engine consists
of
an oil strainer, oil pump,
relief
valve, oil
filter
cartridge
and
oil
switch.
The oil pump draws in
lubricating
oil
from
the
oil pan
through
the
oil strainer.
The oil flows
down
to
the
filter
cartridge,
where
it
is
further
filtered.
Then
the
oil
is
force-fed
to
the
crankshaft,
connecting
rods,
idle
gear,
camshaft
and
rocker
arm
shaft
and
lubricates each part.
Some
part
of
oil,
splashed
by
the
crankshaft
or
leaking and
dropping
from
gaps
of
each part, lubricates these parts:
pistons, cylinders, small ends
of
connecting
rods, tappets, push rods,
inlet
and exhaust
valves.
(1)
Rocker
Arm
Shaft
(7)
Oil
Strainer
(2)
Rocker
Arm
(8)
Relief Valve
(3)
Governor
Gear
(9)
Oil
Filter
Cartridge
(4)
Idle Gear 1 (10)
Crankshaft
(5)
Oil Pressure Switch (11)
Piston
(6)
Oil Pump (12)
Camshaft
1-M7
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