Spark Plug - Malaguti Password 250 Benutzer- Und Wartungshandbuch

5.8 SPARK PLUG

Replace every 6000 km (3720 mi)
Recommended type of spark plug: NGK DR8EA.
The spark plug is an essential component:
• Proper care of the plug is important for maintaining the engine
in perfect working order.
• For maintenance, remove the centre partition under the seat
(P - Fig. 30), by unscrewing the four fixing screws (V - Fig. 30)
and raising the bottom profile (with the aid of a screwdriver)
sealed onto the two teeth of the footboard. Carefully remove
the cap by turning it clockwise and anticlockwise alternatively
(C - Fig. 31). Now, unscrew the spark plug using the special
wrench supplied with the vehicle (all operations on the spark
plug must be performed when the engine is cold).
• Examine the spark plug conditions after a reasonably long
drive (10-15 km) and after letting the engine cool down (at
least 10-15 minutes), since the sediments and the colour of
the insulator can provide useful information about the heat
degree of the spark plug, carburetion, lubrication and general
conditions of the engine. If the insulator is light brown around
the central electrode, it indicates good working order.
• After removing the spark plug, suitably clean the electrodes
and the insulator using a metal brush. Adjust the electrode
gap using a filler gauge: the gap should range from 0.6 to 0.7
mm.
• Blow onto it so as to prevent possible residues from entering
the engine, then refit it, securing it in place until finger tight.
Then using the special spark plug wrench, wrench it to the
recommended torque wrench setting:
Tightening torque: 17.5Nm / 1.75 kgm.
NOTE Spark plugs with a heat degree differing from the recom-
mended one may seriously damage the engine.
It is imperative that any spark plug exhibiting cracks on
the insulator or corroded electrodes be replaced.
Fig. 30
Fig. 31
ENGLISH
P
V
C
1
2
3
4
5
6
37