3. VISUALLY INSPECT SPARK PLUGS Check the spark plug for thread or insulator damage. If abnormal, replace the plug. Recommended spark plugs: 7M-GE ND PQ16R NGK BCPR5EP11 7M-GTE ND PQ20R-P8 NGK BCPR6EP-N8 4. INSPECT ELECTRODE GAP Maximum electrode gap: 7M-GE 1.3 mm (0.051 in.) 7M-GTE 1.0 mm (0.039 in.) If the gap is greater than maximum, replace the plug. Correct electrode gap of new plug: 7M-GE 1.1 mm (0.043 in.) 7M-GTE 0.8 mm (0.031 in) If adjusting the gap of a new plug, bend only the base of the ground electrode, do not touch the tip. 5. CLEAN SPARK PLUGS If the electrode has traces of wet carbon, allow it to dry and then clean with a spark plug cleaner. Air pressure: Below 6 kg/cm² (85 psi, 588 kPa) Duration: 20 seconds or less HINT: If there are traces of oil, remove it with gasoline before using the spark plug cleaner. 6. INSTALL SPARK PLUGS (a) Using a plug wrench(16mm), install and torque the spark plugs. Torque: 180 kg-cm (13 ft-lb, 18 N·m) (b) Install the high-tension cords.