Owner's Manual

29HT 73
english / USA
If engine is down on power, difficult to
start or runs poorly at idling speed, first
check the spark plug.
: Remove spark plug as described
in chapter “Starting / Stopping the
Engine“.
: Clean dirty spark plug.
: Check electrode gap (A) and
readjust if necessary – see
"Specifications".
: Use only resistor type spark plugs
of the approved range.
Rectify problems which have caused
fouling of spark plug:
: Too much oil in fuel mix.
: Dirty air filter.
: Unfavorable running conditions,
e.g. operating at part load.
Fit a new spark plug after approx. 100
operating hours
or earlier if the electrodes are badly
eroded.
To reduce the risk of fire and burn
injury, use only spark plugs
authorized by STIHL. Always press
spark plug boot (2) snugly onto
terminal (1) of the proper size.
(Note: If terminal has detachable
SAE adapter nut, it must be
attached.) A loose connection
between spark plug boot and
ignition wire connector in the boot
may create arcing that could ignite
combustible fumes and cause a fire.
To help prolong the wear life of the
starter rope, observe the following
points:
: Pull the starter rope only in the
direction specified.
: Do not pull the rope over the edge of
the guide bush.
: Do not pull out the rope more than
specified since it might break.
: Do not let the starter grip snap back,
guide it slowly into the housing.
See also chapter “Starting /
Stopping the Engine”!
Replace a damaged starter rope in
good time or have it replaced by your
STIHL dealer!
1
2
380BA009 KN
Rewind Starter