Stiga WBE170 Workshop Manual

Release 00 - 11/2018
page 56
Engine WBE 170
Workshop Manual
17. TROUBLESHOOTING
PROBLEM CAUSE SOLUTION
The engine does not start or
starts badly
The engine brake cable is faulty or
unfastened
Adjust and/or replace the cable
[
13.1]
The OFF microswitch is faulty
Replace the whole shut-down group
[
13.2]
Coil earth connection
Check electrical cabling of earth wire
[
12.1]
Earth wire is attened
Replace the whole shut-down group
[
13.4]
The coil is faulty and does not supply
current or the air gap is too large
Check coil
[ 12.3]
Carburettor dirty
Check and clean the carburettor
[ 9.1]
Poor seal of carburettor needle valve
Clean the carburettor housing and
needle valve [ 9.1] or replace
the carburettor [ 9.2]
The spark plug is badly connected
or faulty
Check spark [
12.1] or replace
spark plug
Blocked air lter
Execute the lter cleaning [
8.1]
Valve malfunction
Check the valve clearance [ 15.2]
Insufcient pressure
Check tightness of cylinder head
screws, replace washer if necessary.
Check wear and tear of the piston
rings [ 16.3]
AUTO-CHOKE malfunction
AUTO-CHOKE check and/or replace-
ment [
11.1]
The Primer is faulty
Check the operating efciency of the
petrol pipe
Startingisdifcultandstrains
the rope
Presence of oil in the combustion
chamber
Clean the combustion chamber
Pressure reducer fault
Check the pressure reducer and
counterweights [
16.2]
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Stiga WBE170 Specifications

General

Brand	Stiga
Model	WBE170
Category	Engine
Language	English