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6 -
STARTING
THE ENGINE
On cold engine
use choke.
Don't set
throttle.
Start the engine.
After the first
ignitions
open throttle
and shortly
after
close
choke.
Attention:
Throttle
opening
reduces
the effect
of ,the choke.
If the engine
is started
too long with
the'
c hoke,
,
t he
engine
gets flooded
with
fuel.
If
this.
nappens ; the
__
apar-kvp.Lug
s
have to be unscrewed, cleaned, dried and the engine has to be
started (cranked through) several times. If the engine still
does not start, see chapter "Fault Tracing Schedule".
SPARK PLUG
If the engine fails to start or operates only on one cylinder,
_
it should be checked whether the ignition wiring is disconnected
from the spark plug protectors or from the spark plugs. Then
the condition of the spark plugs has to be checked (bridged
between the electrodes, oily, sooty etc.).
If the spark plug heat range and the carburetor calibration
are correct, the spark plugs look brownish.
'
With too high heat range (cold plug) and too rich carburetor
<,
calibration they look black and sooty.
With too low heat range (hot plug) or too
lean,
c arburetor
calibration the spark plugs are burnt white and the electrodes
are covered with melt drops.
ATTENTION:'
Heavy oil deposits on the electrodes and insulator
cause engine troubles and have to be removed
regularly
(every 10 hours).
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