Gilera Runner RST 50 SP, Service Station Manual, Page: 30 / 183

Spark plug
- Remove one of the two side panels of the foot-
board, unscrewing the four studs, one of which is
under the passenger footboard;
- Disconnect the cap of the H.V. coil of the spark
plug;
-Unscrew the spark plug using a socket wrench;
-Check the conditions of the spark plug and the
insulation and measure the distance between the
electrodes with a feeler gauge.
-Proceed with regulating the distance by folding
the side electrode carefully.
In case of defect, replace the spark plug with one
of the prescribed types;
- Insert the sparkplug with the correct inclination,
screwing it all the way in, then tighten it with the
specific wrench to the correct torque;
-Insert the cap onto the spark plug;
-Refit the central door.
CAUTION
THE SPARK PLUG MUST BE REMOVED WHEN THE MO-
TOR IS COLD. THE SPARK PLUG MUST BE REPLACED
EVERY 5000 KM. USE OF STARTERS NOT CONFORMING
OR SPARK PLUGS NOT THOSE DESCRIBED CAN SERI-
OUSLY DAMAGE THE ENGINE.
Characteristic
Spark plug
CHAMPION RN1C
Electric characteristic
Electrode gap
0.45 ÷ 0.55 mm
Locking torques (N*m)
Spark plug
25 - 30 Nm
Hub oil
Maintenance
Runner RST 50 SP
MAIN - 30