Stihl HT 131 User Manual

21Series 4180 Powerhead
– Remove the air filter, b 6.1
: Pull the fuel hoses (1 and 2) off
the elbow connectors.
VA
249RA013
2
1
: Disconnect throttle cable nipple
(1) from slotted pin (2) on the
throttle lever.
VA
249RA014
2
1
: Pull the impulse hose (1) off the
metering diaphragm.
VA
249RA016
1
: Pull off the carburetor.
VA
249RA017
: Remove the gasket (1).
: Disconnect the cable (2).
If spacer flange shows signs of
damage or cracks, install a new
one,
b 7.10
VA
249RA018
2
1
Reassemble in the reverse
sequence.
– Remove the shroud, b 5.7.
– Leakage test, b 6.2.1
: Take out the screws (1).
– Remove end cover together with
rubber pump bulb.
VA
249RA108
1
: Remove rubber bulb from the end
cover.
VA
249RA109
6.2.2 Removing and Installing 6.2.3 Manual Fuel Pump

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