10
a halt, so that it uses up all the fuel that is left
in the carburettor.
– Wait for the engine to cool down before stor-
ing the machine.
When you wish to start using the machine again,
prepare it as indicated in chapter “2. Preparing
to work”.
6. EXTRAORDINARY MAINTENANCE
This work must be done exclusively by your
Dealer.
All and any operations performed in unauthor-
ised centres or by unqualied persons will totally
invalidate the warranty.
6.1 TUNING MINIMUM SPEED
WARNING! If the cutting device moves
when the engine is running idle, contact your
Dealer to correctly regulate the engine.
6.2 CARBURETTOR ADJUSTMENTS
The carburettor is tuned by the manufacturer to
achieve maximum performance in all situations,
with a minimum emission of toxic gas in compli-
ance with the regulations in force.
In the case of poor performance contact your
Dealer for a check of the carburation and engine.
7. DIAGNOSTICS
What to do when ...
Source of problem Corrective action
1. The engine will not start or will not keep running
Incorrect starting
procedure
Follow the instructions
(see chapter 3)
Dirty spark plug
or incorrect distance
between the electrodes
Check the spark plug
(see chapter 5)
Air filter clogged Clean and/or replace
the filter (see chapter 5)
Carburation problems Contact your Dealer
2. The engine starts but is lacking in power
Air filter clogged Clean and/or replace
the filter (see chapter 5)
Carburation problems Contact your Dealer
3. The engine runs irregularly
and lacks in power when revved
Dirty spark plug
or incorrect distance
between the electrodes
Check the spark plug
(see chapter 5)
Carburation problems Contact your Dealer
4. The engine makes too much smoke
Incorrect composition
of the fuel mixture
Prepare the fuel mixture
according to the instruc-
tions (see chapter 2)
Carburation problems Contact your Dealer
5. The cutting device must not move
when the engine is running idle
Incorrect carburation
regulation
Contact your Dealer
6. The machine starts to vibrate abnormally
Damaged or loose parts Stop the machine and
disconnect the spark plug
cable
Inspect for damage
Check for and tighten any
loose parts
Have all checks, repair
work and replacements
carried out by a specialized
Centre only.