Yamaha YZF-R1B 2012 Service Manual page 484

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
Item/components and
probable cause
5 Shift drum (that detects the
neutral position) malfunction
6 Malfunction of the ECU or
speedometer.
C. Clutch switch system malfunction
Item/components and
probable cause
1 Adjusting the clutch lever free
play
2 Connection of clutch switch
coupler
Check the connection of the
coupler is secure.
Remove the coupler, and
check each pin (for bending,
wear, or locking).
3 Connection of main harness
ECU coupler
Check the connection of the
coupler is secure.
Remove the coupler, and
check each pin (for bending,
wear, or locking).
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FUEL INJECTION SYSTEM
Check or maintenance job
Check the gear shift drum
(that detects the neutral posi-
tion).
Refer to "CHECKING THE
SHIFT DRUM ASSEMBLY"
on page 5-96.
Malfunction → Replace the
shift drum.
Replacement of the ECU or
speedometer.
Check or maintenance job
Refer to "ADJUSTING THE
CLUTCH CABLE FREE
PLAY" on page 3-14.
Poor connection → Recon-
nect or repair the coupler.
Poor connection → Connect
it securely, or repair/replace
the wire harness.
8-87
Sensor inspection proce-
dure
Start the engine, and check
the secure connection of the
coupler.
Ride the vehicle at a low
speed (approx. 20–30 km/h).
Then, check the fault code
indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Sensor inspection proce-
dure
Start the engine, and check
the secure connection of the
coupler.
Ride the vehicle at a low
speed (approx. 20–30 km/h).
Then, check the fault code
indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Start the engine, and check
the secure connection of the
coupler.
Ride the vehicle at a low
speed (approx. 20–30 km/h).
Then, check the fault code
indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Start the engine, and check
the secure connection of the
coupler.
Ride the vehicle at a low
speed (approx. 20–30 km/h).
Then, check the fault code
indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.