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Release 00 - 03/2018
Engine TRE 224
Workshop Manual
4.3. Functional test
A functional test needs to be carried out at the
end of each servicing operation, to check that
the operations made are effective. The test must
be performed in compliance with the safety regu-
lations regarding the use of the machine on which
the engine is installed.
The functional test is carried out as follows:
a. Refuelling and checking the supply system
When you have refuelled the tank with new petrol,
check the seal of the tank, the cap and the car-
burettor pipe.
b. Hot and cold starting test
The engine is equipped with intelligent starter sy-
stem (AUTO-CHOKE), with the throttle in the “SLOW”
position, perform some cold and hot starts to make
sure they happen regularly.
c. Check the engine rpm
When the engine is hot enough, check the engine
speed with the throttle control set to “SLO” and
“FAST”; the readings should be equal to the speci-
If all of these operations have a positive result, the
engine can be considered fully serviceable and be
returned to the client.
4. ENGINE TUNING AND TESTING
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