Husqvarna K 760 Workshop Manual page 28

Idle speed 2,700 rpm
CARBURETTOR
Valve axles
Check that there is no radial play
on the valve axles. Replace parts
if necessary.
Adjustment
Adjustments must not be made
to the nozzles.
Idle speed
The idle speed must be checked
during service.
Tachometer
502 71 14-01
The instrument is induction
sensing.
502 71 14-01
Adjusting outdoors
Naturally the idle speed must be adjusted outdoors because of exhaust fumes.
The cutting blade must be fitted.
– Run the machine warm for approximately 5 minutes.
– Keep the instrument with the arrow directed downwards towards the posi-
tion of the spark plug.
– Adjust the idle screw to an idle speed of approximately 2,700 rpm. The cut-
ting blade must not rotate at this speed.
defective and must be fixed.
If the cutting blade rotates the friction retarder in the front belt pulley is
Valve axles
Leakage from the valve axles results in
incorrect fuel/air mixture and to dust
penetration in the engine.
Check that there is no radial play on the
valve axles. Replace parts if neces sary. See
the spare parts list.
Adjustment
The high and low jets on the carburettor
have been set at the factory. These should
not be readjusted.
Idle speed
The idle speed adjustment is the only car-
burettor adjustment that can and should
be made during a service. The idle screw
mechanically affects the opening of the
throttle valve.
The hole for the adjuster screw is next
to the cover for the fuel. Use the special
screwdriver (501 60 02-03).
Tachometer 502 71 14-01
The instrument is induction sensing and
does not need to be connected directly to
the ignition lead. The air filter cover can
be fitted when testing.
The supplied antenna cable does not
normally need to be used.
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