30
FIG. 29 – SPARK PLUG CLEANING
Every 50 hours of operating
13.2.4) Spark plug cleaning
(Ref. to Fig. 29)
– Disconnect the spark plug lead and with a spark plug key remove the spark plug.
– Clean the electrode, taking care not to damage the insulation.
– Check and adjust if necessary the electrode gap (0.6 mm - 0.7 mm).
– Install and tighten the spark plug to 14 Nm, then connect the spark plug lead.
– In case of plug replacement, use type
NGK BPMR7A
or equivalent:
BOSCH WSR5F / DENSO W22MPR-U / CHAMPION RCJ6Y.
FIG. 30 – SPARK ARRESTER CLEANING
13.2.5) Spark arrester cleaning
(Ref. to Fig. 30)
– Remove the spark arrester from the exhaust opening.
– Clean deposits from the spark arrester screen by brushing
it.
– Relocate the spark arrester.
Spark arrester