Operating Instructions - Stihl FS 500 Instruction Manual

English / USA
: Turn the choke knob away from g.
: Set the slide control, interlock lever
and throttle trigger to the starting
throttle position.
: Start the engine by pulling the
starter rope firmly – 10 to 20 pulls
may be necessary.
6
5
If the engine still does not start:
: Move the slide control to 0 c.
: Loosen the screw (5) and swing
cover out of the way.
: Remove the spark plug boot (6).
: Unscrew and dry off the spark plug.
: Open the throttle fully.
28
: Pull the starter rope several times to
clear the combustion chamber.
: Refit the spark plug.
: Connect the spark plug boot. Close
the cover and secure it with the
screw.
: Move the slide control to START.
: Turn the choke knob away from g
even if the engine is cold.
: Now start the engine.
Throttle cable adjustment
: Check that the throttle cable is
properly adjusted – see "Adjusting
the Throttle Cable".

Operating Instructions

During break-in period
A factory new machine should not be run
at high revs (full throttle off load) for the
first three tank fillings. This avoids
unnecessary high loads during the
break-in period. As all moving parts
have to bed in during the break-in
period, the frictional resistances in the
engine are greater during this period.
The engine develops its maximum
power after about 5 to 15 tank fillings.
During operation
After a long period of full-throttle
operation, allow engine to run for a while
at idle speed so that the heat in the
engine can be dissipated by flow of
cooling air. This protects engine-
mounted components (ignition,
carburetor) from thermal overload.
After finishing work
Wait for engine to cool down. Drain the
fuel tank. Store the machine in a dry
place. Check tightness of nuts and
screws (not adjusting screws) at regular
intervals and retighten as necessary.
FS 500, FS 550