Spark Plug - Malaguti SPIDER MAX GT 500 Service Manual

SPIDER MAX 500 - EURO 3

SPARK PLUG

Replace every 12.000 Km
• To access the spark plug cap, remove the inserted left
side cover (A).
• Remove moderately the cap (B), slightly rotating it in the
two directions.
• Remove the spark plug (C) when the engine is still hot
(taking care to avoid burns).
• The carbon deposits and the colour of the insulating ma-
terial (around the central electrode) give useful informa-
tion on the heat rating of the spark plug, on the carbu-
retion, on the lubrication and on the general conditions
of the engine.
• The light brown colour (of the insulating material) shows
the proper general functioning.
• Black, dry (to touch), sooty and tarnished deposits
show that the functioning temperature is too low (the heat
rating of the spark plug is too high), carburetion too
rich or faulty ignition.
• Whitish insulating material shows an "extremely light"
mixture or the heat rating of the spark plug too low
(spark plug too "hot").
Check and clean every 6.000 km.
• After disassembling the spark plug, carefully clean the
electrodes and the insulating material, using a metal bru-
sh. Adjust the distance between the electrodes (opera-
ting only on the ground electrode), using a gauged shim:
the distance should be 0.7 : 0.8 mm.
• Blow out energetically, to prevent possible residues from
entering the engine and refit it by tightening it by hand all
the way in; then, tighten it to the prescribed torque.
Spark plugs with heat rating different from the
one deductible from the abbreviations
suggested, can seriously damage the engine.
Spark plugs suggested:CHAMPION RG6YC
COIL
NOTE - To access the coil, remove the rear fairing
(S/D - P. 37).
• Disconnect the connector (A).
• Release the screws (V4).
• Remove the coil (B).
NGK CR7 EKB
F. 20
B
F. 21
Cs - N * m
12 ÷ 14
F. 23
90 07/06
A
C
F. 22
A B
F
V
4