Spark Plug Checks And Maintenance; Troubleshooting - Stiga WBE120 Manuel D'utilisation

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new filter as described above.
• Cartridge filtering element (fig. 4.C.1)
–    B low  compressed  air  from  the  inside  to  remove 
dust and debris.
3. Using a thickness gauge (fig. 10.D) 
ensure the gap between electrodes 
is correct (0.6 - 0.8 mm).
4. Put the spark plug back in 
(fig. 10.A) and tighten firmly using 
a socket wrench (fig. 10.B).

6. TROUBLESHOOTING

PROBLEM
1. Difficulty staring 
the engine
If problems persist after implementing the solution, contact your Dealer.
PROBABLE CAUSE
No fuel
Old fuel or deposits in the fuel tank
Incorrect starting procedure
Disconnected spark plug
The spark plug is wet or the 
spark plug electrodes are dirty 
or placed inadequately
Clogged air filter
Incorrect oil for the season
Fuel evaporation in the 
carburettor (vapour lock)
due to elevated temperatures
Carburetion fault
Low battery
Battery is not inserted correctly
5.7 SPARK PLUG CHECKS
AND MAINTENANCE
1. Take the spark plug down (fig. 10.A) 
using a socket wrench (fig. 10.B).
2. Clean the electrodes (fig. 10.C) with a metal 
brush, removing any carbonaceous build-up.
Replace the spark plug if the electrodes are 
burnt or if the porcelain is broken or damaged.
Fire hazard! Do not check the ignition
system when the spark plug is not in place.
IMPORTANT Only use the required type
of spark plugs (see Technical data table).
Check and top up (chap. 5.1.3)
Empty the fuel tank and add fresh fuel
Perform start-up correctly 
(par. 5.2 and par. 5.3)
Ensure that the cap is fitted onto 
the spark plug (par. 5.1.4)
Check (par. 6.6)
Check and clean (par. 6.5)
Replace with suitable oil (par. 6.3)
Wait a few minutes then try 
starting it up again (par. 5.3)
Contact an Authorised Assistance Centre
Recharge the battery (par 5.3.1)
Insert the battery correctly (par. 5.3.3)
9
SOLUTION

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