Air Cleaner Maintenance; Spark Plug; Combustion Deposits; Muffler - KPC BK 500 S Mode D'emploi

10.3

Air cleaner maintenance

A dirty air filter will increase air intake restriction. Periodical maintenance for air filter will help
to improve engine performance and reduce emissions.
Warning! Never clean air filter wit gasoline or an easy ignited solvent it may
cause explosion.
10.4

Spark Plug

! Recommended spark plug: F7RTC.
! Stop the engine and allow it to cool
Warning! Do not use an incorrectly rated plug. It is essential to keep the
spark plug in good condition – clean and properly adjusted.
Warning! To keep engine at top performance spark plug gap should be
within specified and carbon built up free.
! Removing spark plug with a spark plug wrench.
! Inspect the spark plug visually. If spark plug is worn, dirty or has cracks, replace with the
recommended type and heat range.
! The correct air gap is 0.70 to 0.80 mm
! Tighten the spark plug
! After spark plug is tight; torque to 25-30N m.
Warning! An incorrectly tightened spark plug may result in poor engine
performance and permanent engine damage.
10.5

Combustion deposits

We recommend that you should remove combustion deposits from the cylinder, cylinder head,
top of piston, and around valves after 100-300 hours usage.
10.6

Muffler

Warning! If engine just running down, do not touch muffler. Allow it to cool
before operation.
! Remove the air cleaner cover (A), and
carefully remove the filter element (B).
! Clean all parts
! Blow off dirt from filter element with
pressure air.
! Reinstall the filter element and air cleaner
cover.
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