Stihl HT 131 Instruction Manual

HT 100, HT 101, HT 130, HT 131
English
33
Checking the Spark Plug
N Clean dirty spark plug.
N Check electrode gap (A) and
readjust if necessary – see chapter
"Specifications."
N 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.
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 Screw the spark plug (3) into the
cylinder and fit the boot (2) (press it
down firmly).
000BA039 KN
A
2
1
002BA363 KN
3
002BA178 KN
2

Stihl HT 131 Specifications

General

Engine Power	1.4 kW (1.9 bhp)
Displacement	36.3 cc
Sound Power Level	106 dB(A)
Overall Length	270 - 390 cm
Guide Bar Length	30 cm
Power Source	Gas
Chain Pitch	3/8"
Chain Gauge	1.3 mm