8-11
3
7
4
5
6
1
2
Checking the throttle sensor
NOTE: the adjustment must be made in a mounted condition with the
cable connected and the ignition switched on.
– Use a digital multimeter to measure the voltage between the blue
and yellow cables at the connector AM
1
(under the fuse box).
!
CAUTION
!
S
INCE YOU MUST MEASURE WITH THE CONNECTOR ATTACHED
,
MAKE SURE TO
CAREFULLY PUSH THE MEASURING TIPS ON THE MULTIMETER THROUGH THE SEALING
FROM THE CABLE SIDE AND NOT TO DAMAGE ANY PART OF THE CONNECTOR
.
– Reading with closed throttle (neutral position): 0.5 – 0.6 volts
– Slowly open the throttle valve with the throttle grip, the measured
voltage should increase uniformly up to the full load reading.
– Reading with fully opened throttle grip (full throttle position):
3.6 – 3.7 volts
Adjusting the throttle sensor
– Remove the carburetors from the air filter box: see Chapter 3.
– Loosen the screw on the throttle sensor
2
and turn the throttle
sensor until you reach the reading for the neutral position.
NOTE: make sure that you still have enough throttle cable play when
the carburetors are dismounted.
– Tighten the screw on the throttle sensor and remount the carburetors
(see Chapter 3).
– Check the readings with the carburetors mounted (see above).
Adjusting the choke cable
The choke cable should always have a play of approx. 3 mm.
– Push back the protection cover
3
; you should be able to lift the cable
approx. 3 mm away from the adjusting screw
4
.
– Loosen the counter nut
5
, turn the adjusting screw as needed,
tighten the counter nut again and slide on the protection cover.
!
CAUTION
!
I
F THERE IS NO CHOKE CABLE PLAY
,
THE HOLE IN THE COLD START SYSTEM WILL NOT
BE ABLE TO CLOSE COMPLETELY
. T
HIS WILL RESULT IN A HIGH FUEL CONSUMPTION
,
IRREGULAR ENGINE OPERATION AND EXTREME WEAR ON THE PISTONS AND
CYLINDERS
.
Adjusting the throttle cable
You should be able to feel 3-5 mm play in the throttle grip when you
start to turn it.
– Loosen the counter nut
6
, adjust the adjusting screw
7
as needed
and tighten the counter nut again.
NOTE: the throttle grip will automatically return to the neutral position
when released. Start the engine and steer to the left and right all the
way to the stop. The idle speed should not change, otherwise the
throttle cable play must be increased.
