3.
FEATURES
1.
The overhead valve design offers compactness, light weight and ideal combustion characteristics
2.
The parts
such
as a large capacity muffler, dual element air cleaner reduce noise
to
a minimum level.
3.
The automatic decompression system offers easy and sure starting.
4.
The muffler and carburetor are located
on
opposite sides, making the arrangements
for
cooling air
5.
The oil pump and oil filter provide excellent lubrication regardless of engine posture during
6.
This engine
is
offered in two stylish versions.
7.
The Pro-Poly version engine is covered with
a
stylishly designed
shroud
with the
'8.
The Classic Steel version does not have the shroud or combined fuel tank.
resulting in more power
from
less fuel and prolonged engine life.
flow
much easier in the design of power equipment.
operation.
fuel tank incoroprated into it.
4.
GENERAL DESCRIPTION
OF
ENGINE COMPONENTS
4-1
CYLINDER AND CRANKCASE
The cylinder and crankcase is single piece alu-
minum diecasting. The cylinder liner, made of
special cast iron, is molded into the aluminum
casting.
The crankcase has a mounting surface
on
the
output shaft side, where the main bearing cover is
attached. (See Fig.
4-1.)
4-2
MAIN BEARING
COVER
The main bearing cover is an aluminum
diecasting, which is mounted
on
the output shaft
side of the crankcase. Remove the main bearing
cover
to
inspect inside
of
the engine.
The main bearing cover also functions as an oil
pan, with,a trochoid
oil
pump and
oil
filler.
(See Fig.
4-2.)
..
Fig.
4-1
Fig.
4-2
-3-
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