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MAINTENANCE
Ignition System
The engine is equipped with an electronic
ignition system. Only the spark plugs require
maintenance.
For recommended spark plugs, see Technical
Data.
1. Remove the ignition cable boot and
clean around the spark plug.
2. Remove the spark plugs with a spark
plug socket wrench.
3. Check the spark plugs. Replace the
spark plug if the electrodes are burned or
if the insulation is cracked or damaged.
Clean the spark plug with a steel brush if
it is to be reused.
4. Measure the electrode gap with a
gapping tool. The gap should be 0.030”
(0.75 mm). Adjust as necessary by
bending the side electrode.
5. Reinsert the spark plugs, turning by hand
to avoid damaging the threads.
6. After the spark plug is seated, tighten it
using a spark plug wrench so that the
washer is compressed. Used spark plugs
should be turned 1/8 of a turn from the
seated position. New spark plugs should
be turned 1/4 of a turn from the seated
position.
7. Connect the ignition cable.
IMPORTANT INFORMATION
Fitting the wrong spark plug type can
damage the engine.
Inadequately tightened spark plugs can
cause overheating and damage the
engine. Tightening the spark plugs too
hard can damage the threads in the
cylinder head.
8011-05
4
Measure the electrode gap