12 User’s manual
Basic maintenance made easy.
WARNING! If your mower is not serviced correctly, you could reduce
your mower’s ability to operate and void warranty.
1. Spark plug.
Firstly, wait until the engine has cooled
before disconnecting the spark plug cover
and then remove the spark plug with the
box spanner supplied. If it is dirty, you can
clean the plug with a wire brush.
For best results we advise you to replace
the spark plug after 100 hours of use. The
replacement spark plug is NGK B
4LM
.
When re
fi
tting the spark plug do not over-
tighten. If adjusting yourself, note the spark
plug gap must be set to 0.75mm.
2. Air
fi
lter.
Ensure the engine is cool, unscrew the top
air
fi
lter nut, lift up the cover and remove
the air
fi
lter element. Put the cover back on the
housing immediately to prevent any objects
falling into the air intake.
Either carefully brush off any excess dirt
particles, or replace the air
fi
lter with a new
one. To protect your warranty, only use
a genuine B&S air
fi
lter. We recommend
that you replace the air
fi
lter after every 12
months of regular usage. When the air
fi
lter
has been cleaned or replaced, screw-in the
cover, taking care not to over-tighten.
Summary of Contents for WERR19
Page 2: ...2 User s manual ...
Page 14: ......
Page 17: ...Parts Diagram ...
Page 20: ...User s manual Notes ...
Page 22: ...Webb Lawnmowers Hobley Drive Stratton St Margaret Swindon Wiltshire SN3 4NS ...