Instruction Manual

TS 410, TS 420
English
39
N Remove the spark plug boot (3).
N Unscrew the spark plug (4).
Checking the Spark Plug
N Clean dirty spark plug.
N Check electrode gap (A) and
readjust if necessary – see
"Specifications."
N Use only resistor type spark plugs of
the approved range.
Rectify problems that have caused
fouling of spark plug:
– too much oil in fuel mix,
– dirty air filter,
– unfavorable running conditions, e.g.
operating at part load.
WARNING
To reduce the risk of fire and burn injury,
use only spark plugs authorized by
STIHL. Always press spark plug boot (1)
snugly onto spark plug terminal (2) of the
proper size. (Note: If terminal has
detachable SAE adapter nut, it must be
securely 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.
Installing the spark plug
N Fit the spark plug by hand and
screw it in
N Tighten spark plug with combination
wrench
N Press the spark plug boot firmly
onto the spark plug
N Position the cap for the spark plug
boot and screw it down
4
1307BA031 KN
3
000BA039 KN
A
1
2
000BA071 KN