INSTRUMENT AND CONTROL FUNCTIONS
3-7
3
EAU01559*
Diagnosis deviceThis model is equipped with a diagno-
sis device for the following circuits.l
Throttle Position Sensor (T.P.S.)
l
Ignition circuit
If some trouble should occur in any of
these circuits, the tachometer will re-
peatedly display as follows:
CB-72EUse this chart to identify what circuit is
faulty according to the specified r/min
displayed.CB-73E
If the tachometer displays as described
above, take note of the specified r/min
and then take your motorcycle to a
Yamaha dealer for repair.
EC000004
CAUTION:@ To prevent engine damage, be sure
to consult a Yamaha dealer as soon
as possible if the tachometer dis-
plays a repeated change in r/min. @
EAU00109
Antitheft alarm (optional)An antitheft alarm can be equipped to
this motorcycle. Consult your Yamaha
dealer to obtain and install the alarm.
Specified r/min
Faulty circuit
10,000 r/min
Throttle Position Sensor
(T.P.S.)
9,000 r/min
Ignition circuitSpecified
r/min for the
faulty circuit
for 3 sec-
onds (see
chart below)
0 r/min for
3 seconds
Current en-
gine r/min for
3 seconds
