4-9
COOLING
The cooling fan serving
also
as a flywheel
cools
the cyhder and cylinder head by forced air cooling. Cylinder baffles
and
head cover are provided for guiding the coohg
air.
4-10
LUBRICATION
The
rotating and sliding parts are being lubricated by
scoop-
ing and splashing the
oil
in the crankcase with the
oil
scraper
attached
to
the connecting
rod.
(See Fjg.
13.)
Fig.
13
4-1
1
IGNITION
The ignition system is
a
flywheel magneto type with ignition timing set at
23"
before
TDC.
The magneto
is
composed
of
a
flywheel and ignition
coil.
The flywheel serving also as a fan is mounted directly
on
the crankshaft, and the ignition
coil
in
the crankcase.
(For
further detds, refer to Section on the Magneto.) (See Fig.
14
and Fig.
15.)
(BREAKER
POINT IGNTION TYPE)
(SOLID
STATE IGNITION TYPE)
Ignition
Coil
Ea\?
Fig.
14
-8-
Fig.
15
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