INSPECTION
Check the insulator for cracks or damage, and the
electrodes for wear, fouling or discoloration.
Replace the plug if necessary.
RECOMMENDED SPARK PLUG:
NGK:
CPR8EA-9
DENSO: U24EPR9
Clean the spark plug electrodes with a wire brush or
special plug cleaner.
Check the gap between the center and side elec-
trodes with a feeler gauge.
SPARK PLUG GAP: 0.8 – 0.9 mm (0.03 – 0.04 in)
If necessary, adjust the gap by bending the side
electrode carefully.
INSTALLATION
Install and hand tighten the spark plugs to the cylin-
der head, then tighten the spark plugs to the speci-
fied torque.
TORQUE: 16 N·m (1.6 kgf·m, 12 lbf·ft)
Connect the spark plug caps.
Install the right air guide (page 2-10).
Front:
CENTER ELECTRODE
INSULATOR
0.8 – 0.9 mm
(0.03 – 0.04 in)
REAR:
FRONT:
PLUG CAPS
SPARK PLUGS
MAINTENANCE
SIDE ELECTRODE
3-9