Troubleshooting - GGP WBE 0701 Workshop Manual

PROBLEM
The engine does not start or
starts badly
Starting is difficult and strains
the rope
The engine starts but does
not run
Release 00 - 02/2008

15. TROUBLESHOOTING

CAUSE
The engine brake cable is faulty or
unfastened
The microswitch is faulty
Coil earth connection
Earth wire is flattened
The coil is faulty and does not supply
current or the air gap is too large.
Carburettor dirty
Poor seal of carburettor needle val-
ve
Choke blocked
The spark plug is badly connected
or faulty
Blocked air filter
Fouling in the combustion chamber
Insufficient pressure
Oil in the cylinder head
Pressure reducer fault
The tank cap has a clogged breather
pipe
Fouling in the combustion chamber
Insufficient pressure
pag. 5
Engine WBE 0701-WBE 0704
SOLUTION
Adjust and/or replace the cable
11.1]
Replace the microswitch
11.2]
Check electrical cabling of earth wire
[ 10.2]
Replace earth wire
[ 10.2]
Check coil
Check and clean the carburettor
8.1]
Clean the carburettor housing and
[
needle valve
[
the carburettor
Check and clean the carburettor
[
and the choke
[
Check spark
spark plug
Execute the filter cleaning
Dismount the cylinder head and re-
[
move fouling
Check tightness of cylinder head
screws, replace washer if necessary.
Check wear and tear of the piston
[ 14.4]
rings
Dismount the cylinder head and
[ 1.]
clean it
Check the pressure reducer and
[
couterweights
Clean and/or replace the cap
5.];
Dismount the cylinder head and re-
[
move fouling
Check tightness of cylinder head
screws, replace washer if necessary.
Check wear and tear of the piston
[ 14.4]
rings
<< BACK >>
back to the index
[
[
[ 10.2]
[
8.1]
or replace
8.2]
8.1]
10.1]
or replace
[ 7.1]
1.]
14.]
[
1.]
Service manual