6
OWNER MAINTENANCE
15
HGK256
3. Clean around the base of the plug to be removed, and install the plug socket ensuring that the ceramic insulator does not become dam- aged. Turn the socket counterclock-wise to remove the plug.
CAUTION:
Sparking plugs must only be cleaned using purpose designed equipment. Wire brushing may dam-age the centre electrode insulator causing misfiring to occur. Only the correct grade of sparking plugshould be used. Use of an incorrect grade may result in serious engine damage.
! Prior to installing a sparking plug, the
gap between the centre and outer elec- trodes must be checked and adjustedas necessary.
Adjustment is facilitated by bending
the outer electrode towards or away from the centre electrode. Under no circumstances should attempts bemade to adjust the position of the centre electrode.
4. Insert the sparking plug into the cylinder head and using a suitable plug socket, slowly rotate the spark-ing plug, (being careful not to cross- thread) until the plug contacts the seating area. Tighten the plug with plug socket by a further 1/2 to 3/4 of a furn only.
HGK257
5. Replace the plug lead ensuring thatthe cap is pushed firmly into place. Confirm that the cap is correctlyseated by lightly pulling upon it.
NOTE: When replacing the spark plug, al- ways use the genuine parts recom- mended. Recommended Spark PlugsHGK258
CHAMPION NGK RC10YC4
BKR5ES-11
