Electrical problems
The earth cable is disconnect-
ed or broken
Lawnmower problems
Blade not balanced
Engine screws loose
Problems with the stopping
system
Faulty or no clutch lining
The broken or disconnected cable prevents the
microswitch from closing the electric circuit to
earth
The imbalanced or loose blade causes judders
and the premature wear of all the parts inside the
engine.
An engine with loose screws can be hazardous
for the user and can break internal parts.
The thickness of the clutch lining normally guar-
antees good braking action for the entire dura-
tion of the engine.
If it comes away from the lever, act immediately
to stop the metal from rubbing against the fly-
wheel causing hazardous sparks.
Check the earth con-
nection [ 6.7.B
]
Dismount and balance
the blade and tighten
the screws to the
specified levels
Tighten the screws to
the specified levels [
6.9.C
]
Replace the engine
stopping system [
6.7.D
]
01/2005
SV 150
5.1.0
TROUBLESHOOTING
5 / 5
WORKSHOP MANUAL
page
from
2004 to ••••
J) The engine judders
Probable cause Comment Solution
K) The engine does not stop within 3 seconds after it has turned off
Probable cause Comment Solution
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