Hyundai HY8500 Hirepro User Manual page 18

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6.26 Check and set the gap on the spark plug to 0.7 – 0.8mm.
6.27 Replace the spark plug with a suitable replacement if required.
6.28 Check the spark plug washer is in good condition.
6.29 Thread the spark plug back in to the engine by hand taking care to prevent cross
threading.
6.30 Once the spark plug has been installed as tight as you can by hand and is seated
correctly, tighten with a spark plug wrench to compress the washer.
New Plug: ½ a turn
Re-Used Plug: ⅛ – ½ a turn
6.40 Fuel tank filter
6.41 Remove fuel filler cap.
6.42 Remove the fuel filter and clean.
6.43 Wipe off and dry with a clean, lint free cloth.
6.44 Replace fuel filter in to the fuel tank filler neck.
6.50 Exhaust
WARNING
The exhaust becomes very hot during operation and remains hot for a while after
use. Allow the exhaust to cool before carrying out any maintenance.
6.51 Make sure the exhaust is cold before continuing work.
6.52 Remove the silencer protector and silencer screen.
6.53 Clean the carbon deposits from the exhaust outlet using a soft wire brush.
6.54 Replace the exhaust silencer protector and silencer screen.
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0.7 – 0.8mm
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