EN
131
TROUBLESHOOTING
Problem
Cause
Remedy
Won’t start
WARNING
Make sure the frost
protection is not
activated.
Check fuel for water or
whether it is poor quality/
incorrectly mixed.
Replace with properly mixed fuel.
Check for engine flooding.
Remove and dry the spark plug. Then
pull the starter handle again, with
no choke.
Check the plug sparks.
Replace with a new plug.
Poor power/
poor acceleration/
irregular idling
Check fuel for water or
whether it is poor quality/
incorrectly mixed.
Clean.
Check whether the carburettor is
incorrectly adjusted.
Adjust the revs.
No oil comes out
Check the oil’s quality.
Replace.
Check whether the oil port or
oil pipe is clogged.
Clean.
Contact Jula’s service department if problems remain.
Summary of Contents for 721-340
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