Download User Manual - Envirostar

8.5
Spark Plug Change (see diagram in 7.2)
Warning
DO NOT check for a spark with spark plug removed.
Use a spark tester , to check for spark.
DO NOT crank engine with the spark plug removed.
If the engine is flooded, place the throttle in FAST and crank until
engine starts.
Spark plug gap
should be 0.76mm of 0.030 inches.
Replace the spark plug every 100 hours or every season, which ever
occurs first.
If a suppression resistor is fitted in the ignition lead, ensure that
any replacement contains the same arrangement.
Keep engine clean
Periodically remove chaff and debris build up from the ENVIROSTAR
and the engine. Do not spray the engine with water to clean it as
water may contaminate fuel. Clean using a hand brush or
compressed air.
To assure smooth operation, keep the governor linkage, springs and
controls free of debris.
Accumulation of debris around the exhaust
could cause a fire.
Inspect before every use.
If the exhaust is fitted with a spark arrester
remove the spark
arrester screen for cleaning and inspection every 50 hours or every
season. Replace if damaged.
Clean the engine cooling system of all chaff and debris especially
after prolonged operations. Internal cooling fins and surfaces may
require cleaning to prevent over heating and engine damage.
Remove the blower housing and clean as shown
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