Theory of Operation WM 90
wc_tx000388gb.fm 30
The large fins (a) on the flywheel provide suffi-
cient cooling air capacity for the inlet and
exhaust area and cylinder. The cylinder baffle
directs the cooling air flow efficiently.
All the rotating and sliding parts are splash-
lubricated by the oil splasher (a) on the con-
necting rod.
The ignition system is a transistor-controlled
magneto system which consists of a flywheel
(a) and an ignition coil (b) with a built-in tran-
sistor mounted on the crankcase. This system
has an automatic ignition timing advance sys-
tem for easy starting.
Component Illustration Component Description
wc_gr001949
a
wc_gr001879
a
wc_gr001880
a
b
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