Warning : All engine trials performed when the propeller is spinning must be
undertaken with utmost caution. You mustn’t hold the propeller’s cage! If you do
this the engine’s thrust might bend the cage towards the spinning propeller.
Always make sure whether the propeller’s cage is properly mounted on the frame
and whether it is protected.
Properly regulated and flooded engine starts usually after one or two yanks and works
steadily at idle speed, though immediately after the start-up the speed is much higher than
2000-2200 rpm and decreases during the warm-up. When you have problems with this, the
reason might be:
•
Over-flooding
– too much fuel in the carburetor
Symptoms: When engine starts with a few strokes and cuts out, but with each start-
up attempt engine works a little bit longer and then cuts out, we are dealing with a
too rich mixture. When engine is over-flooded it might be necessary to push slightly
the handle throttle.
•
Not enough fuel
Symptoms: The engine does not start at all, or works shorter with each start-up till it
ceases to start. In that case one should apply brief fuel „injection”, introducing fuel
back to the carburetor.
Warning: You should not flood the carburetor with additional fuel when the engine is
still warm – it might damage the spark plug isolator or cause problems during the next
start-up.
Warning! : Never pull out the starter rope to its maximal length.
In the first engine start-ups you should pull the rope gently to its very end so as to
remember its furthest position. This rope should never be pulled that far again. To assure
trouble-free operation of the starter just before yanking you should pull the rope gently till
the first perceivable resistance induced by snapping the hook on the flywheel. It helps you
to avoid “knocks” on triggers and it noticeably extends the time of the trouble-free operation
of the starter.
Warning: After the start-up of the engine you mustn’t (in any case!) pull the starter
handle. Every time you pull the rope while the engine is working the triggers are pushed
towards the cup clutch, which could lead to serious damage of the starter.
4.2 Turning off the engine.
In order to turn off the engine you should push the button on the gas throttle and wait till
the engine stops completely. If you release the button earlier the engine will start up again.
2016-06-22
