Table of Contents
Advertisement
Replacing the air filter
If the engine seems to lack power or does not run smoothly
this may be because the air filter is clogged. It is therefore
important to replace the air filter at regular intervals (see
Maintenance/Maintenance Schedule for the correct service
interval).
Replace the air filter as follows:
1 Open the engine cover.
2 Loosen the knobs holding the filter cover in place and
remove it.
3 Remove the filter cartridge from the filter housing.
Replace the air filter cartridge, if clogged with dirt.
IMPORTANT INFORMATION
Never run the engine without the air filter fitted.
Do not use compressed air to clean the paper filter. The
filters must not be oiled. They must be fitted dry.
4 Clean the filter by knocking it with care against a hard
surface. Do not use compressed air to clean the filter.
Replace the air filter if it is still dirty.
5 Slide the filter onto the air hose.
6 Push the filter cartridge in place.
7 Refit the air filter cover.
Maintenance
Checking the fuel pump's air filter
Check regularly that the fuel pump's air filter is free from dirt.
The filter can when necessary be cleaned with a brush.
Ignition system
The engine is equipped with an electronic ignition system.
Only the spark plug requires maintenance.
For recommended spark plug, see Technical data.
IMPORTANT INFORMATION Fitting the wrong spark plug
type can damage the engine.
Replacing the spark plug
1 Remove the ignition cable shoe and clean around the
spark plug.
2 Remove the spark plug with a 5/8" (16 mm) spark plug
socket wrench.
3 Check the spark plug. 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 0.75 mm/0.030". Adjust as necessary by
bending the side electrode.
5 Reinsert the spark plug, turning by hand to avoid
damaging the threads.
IMPORTANT INFORMATION
Inadequately tightened spark plugs can cause overheating
and damage the engine. Tightening the spark plug too
much can damage the threads in the cylinder head.
6 Tighten the spark plug, once it touches the seating, with
the spark plug spanner.
Tighten the spark plug so that the washer is compressed.
A used spark plug should be turned 1/8 of a turn from the
seated position. A new spark plug should be turned a 1/4
turn from the seated position.
7 Replace the ignition cable shoe.
IMPORTANT INFORMATION
Do not turn over the engine if the spark plug or ignition cable
has been removed.
– 21
English
Hide quick links:
Advertisement
Table of Contents
