Okay WM 5617 Traduction Du Mode D'emploi D'origine page 29

Inspection and maintenance plan
Regular servicing period
Air filter Inspection
Change
Spark plug Inspection
Clean
Change
Thread Clean
Failure removal
Failures
Engine does not start
The motor does not
develop maximum
power
Before any
start-up
Causes
Lack of fuel
Choke has not been used
Wrong fuel, storing without petrol tank
being drained
Sooted spark plug (carbon residues on
electrodes), electrodes distance too big
The spark plug is wet from petrol
(oversaturated engine).
Sooted spark plug (carbon residues on
electrodes), electrodes distance too big
Dirty air filter
After every take After 1
out of service month
Removal
Add some fuel
Use the choke
Drain the fuel tank and carburettor.
Add fresh petrol.
Clean the spark plug, check the plug ther-
mal value, possibly change the plug, set
the electrodes distance to 0.6-0.7 mm
Dry the spark plug out and refit it.
Clean the spark plug, check the plug ther-
mal value, possibly change the plug, set
the electrodes distance to 0.6-0.7 mm
Clean or replace the air filter
ENGLISH
After 12 After 24
months months
25