The Light Weight Engine Houtekietstraat 11
B-8540 Deerlijk, Belgium
EFFECTIVITY page 35
ALL 19-3-2019
If torque wrench is not available. Tighten as far as possible by hand with spark plug tool and then 90°
for new spark plug and 30° for used spark plugs.
When replacing used spark plugs, two points in particular are to be observed: Firstly, under no
circumstances must contamination around plug hole fall into combustion chamber. Secondly, plugs
must be tightened to the correct torque.
Excessive torque tightening can damage the plug, insufficient torque results in poor sealing and heat
dissipation
(*) 1 internal and 1 external in the middle of crankcase
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