Ducati HYPERMOTARD 1100, Owner'S Manual

Page: 88 / 120

87
E
Cleaning and replacing the spark plugs
(fig. 77)
Spark plugs are essential to smooth engine running and
should be checked at regular intervals.
This operation also provides an indication of engine
condition.
Have the spark plugs checked and replaced (as required) by
a Ducati Dealer or Authorised Workshop, who will check the
colour of the ceramic insulator of the centre electrode; a
uniform light brown colour indicates good engine condition.
They will also inspect the centre electrode for wear and
check spark plug gap, which should be:
0.6-0.7 mm.
Important
If gap is too wide or too close, engine performance will
be affected. This could also cause misfiring or irregular idling.
0,6÷0,7 mm
fig. 77
UM_HYM1100_S_09_e.book Page 87 Monday, June 16, 2008 1:06 PM