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EN
89
TROUBLESHOOTING
NB
Fitting the engine and more extensive repair work may only be carried out by authorised service
personnel�
Engine will not start
Possible cause
Action
Check control levers
Fuel tap OFF
Set the fuel tap to the
ON position
Engine switch OFF
Set the engine switch to
the ON position�
Check fuel
Out of fuel
Fill with fuel
Poor quality fuel, engine stored
without stabiliser or with petrol
still in tank, or filled with poor
quality fuel
Drain fuel tank and carburettor,
fill with fresh petrol
Remove and check spark plugs
The spark plugs are broken,
dirty or are incorrectly set
Adjust gap or replace
the spark plugs
Spark plugs soaked in fuel
(flooded engine)
Wipe and refit spark plugs
Take the engine to an
authorised workshop, or refer
to the operating instructions�
Blocked fuel filter, fault in
carburettor, ignition fault, etc�
Replace or repair broken
components if necessary
No power in engine
Possible cause
Action
Check the air filter
Filter elements blocked
Clean or replace filter elements
Check fuel
Poor quality fuel, engine stored
without stabiliser or with petrol
still in tank, or filled with poor
quality fuel
Drain fuel tank and carburettor,
fill with fresh petrol
Take the engine to an
authorised workshop, or refer
to the operating instructions�
Blocked fuel filter, fault in
carburettor, ignition fault, etc�
Replace or repair broken
components if necessary
Problems that may affect exhaust gas cleansing
If any of the following problems occur, the engine must be inspected and repaired by authorised
service personnel�
– The engine is difficult to start or stops after starting�
– Irregular idling�
– Poor ignition or backfiring under load�
– Afterburning (backfiring)�
– Black exhaust smoke or high fuel consumption�
Содержание 721-397
Страница 49: ...SE 8 SYMBOLER Varning Ljudeffektniv R rliga delar Explosion eller eldsv da Heta ytor Giftiga avgaser...
Страница 70: ...NO 29 SYMBOLER Advarsel Lydeffektsniv Bevegelige deler Eksplosjon eller brann Varme flater Giftige gasser...
Страница 113: ...EN 72 SYMBOLS Warning Sound power level Moving parts Explosions or fire Hot surfaces Poisonous fumes...
Страница 131: ...EN 90 WIRING DIAGRAM Black Black 3 mm 3 mm Spark plug Ignition coil Engine switch...
Страница 132: ...Jula reserves the right to make changes In the event of problems please contact our service department www jula com...