Ducati 999R User Manual

E
77
Cleaning and replacing the spark plugs (fig. 79)
Spark plugs are essential to smooth engine running and
should be checked at regular intervals.
Spark plugs condition provides a good measure of engine
condition.
Have the spark plugs inspected or replaced at a Ducati
Dealer or Authorized Workshop. Firstly, they will check the
color of the ceramic insulator of the central electrode: a
light brown, even color is a sign of good engine condition.
Secondly, they will check the central electrode for wear
and measure electrode gap. Electrode gap should be:
0.6÷0.7 mm.
Important
An electrode gap outside the specified limit will
adversely affect engine performance and may lead to
difficult starting or erratic idling.
0,6÷0,7 mm
fig. 79

Ducati 999R Specifications

General

Transmission	6-speed
Frame	Tubular steel trellis
Bore x Stroke	104 x 58.8 mm
Power	140 hp (104 kW) @ 9750 rpm
Torque	108 Nm @ 8, 000 rpm
Rear Suspension	Öhlins fully adjustable monoshock
Front Brakes	Dual 320mm discs, 4-piston calipers
Rear Brakes	240 mm disc, 2-piston caliper
Fuel Capacity	15.5 liters
Fuel Injection	Electronic fuel injection
Front Suspension	Öhlins 43 mm fully adjustable upside-down fork