page 18
Release 00 - 03/2018
Engine TRE 224
Workshop Manual
General information
The intake system uses an air filter directly connected to the carburettor by means of a manifold which
conveys the air/petrol mixture to the inlet valve.
See the relevant section
for advice on resolving problems due to the malfunctioning of the air
intake system.
An inefficient filter can let dust or debris enter the cylinder, causing premature wear to the piston rings and
cylinder.
The air filter is found on the left hand side of the engine and can be inspected without having to remove
other parts.
The filter assembly is to be removed only to accede the carburettor.
7. INTAKE SYSTEM
7.1. Maintenance of filtering element
WARNING: Never run the engine without air
filter. The engine would certainly be dama-
ged.
1 - Clean the area around the filter cover (1) by
blowing it with compressed air.
2 - Remove the cover plate (1) by turning the dedi-
cated knob (2) and remove the filter element (3).
3 - Check carefully that the element has no holes
or tears, and replace it if it is damaged.
WARNING: When the filter element is remo-
ved the intake duct should be covered to
avoid foreign bodies from entering. (see the
figure).
2
1
3
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