Yamaha MT-09 2021 Service Manual

9-276
12_ABS
EAS20686
12_ABS
EAS33315
TROUBLESHOOTING
Item
Rear wheel sensor (intermittent pulses or no pulses)
Procedure
1. Foreign material adhered around the rear wheel sensor
• Check the surface of the sensor rotor and wheel sensor for foreign material, such as metal particles.
2. Incorrect installation of the rear wheel
• Check the components for looseness, distortion, and bends.
Refer to “CHECKING THE REAR WHEEL” on page 4-21.
3. Defective sensor rotor or incorrect installation of the rotor
• Check the surface of the sensor rotor for damage.
Refer to “MAINTENANCE OF THE REAR WHEEL SENSOR AND SENSOR ROTOR” on page 4-
22.
4. Defective rear wheel sensor or incorrect installation of the sensor
• Check the wheel sensor for damage and the installed condition of the sensor.
Refer to “MAINTENANCE OF THE REAR WHEEL SENSOR AND SENSOR ROTOR” on page 4-
22.
Is check result OK?
YES
→ Go to step 2.
NO
→ Clean the sensor rotor and wheel sensor.
Is check result OK?
YES
→ Go to step 3.
NO
→ Replace the wheel axle, tire, rear wheel, wheel bearings or oil seals.
Is check result OK?
YES
→ Go to step 4.
NO
→ Replace the sensor rotor.
Is check result OK?
YES
→ Replace the hydraulic unit assembly (ABS ECU).
NO
→ Repair or replace the wheel sensor.

Yamaha MT-09 2021 Specifications

General

Displacement	889cc
Bore x Stroke	78.0 mm x 62.1 mm
Compression Ratio	11.5:1
Fuel System	Fuel Injection
Transmission	6-speed
Frame Type	Diamond
Front Brake	Hydraulic dual disc, Ø298 mm
Rear Brake	Hydraulic single disc, Ø245 mm
Front Tire	120/70ZR17M/C (58W)
Rear Tire	180/55ZR17M/C (73W)
Overall Length	2, 090 mm
Overall Height	1, 190 mm
Seat Height	825 mm
Wheelbase	1, 430 mm
Wet Weight	189 kg
Fuel Tank Capacity	14 L
Lubrication System	Wet sump
Clutch Type	Wet, Multiple Disc
Ignition System	TCI
Starter System	Electric
Final Transmission	Chain
Fuel Consumption	5.0 L/100 km
Front Travel	130 mm
Rear Travel	122 mm
Minimum Ground Clearance	140 mm
Oil Tank Capacity	3.5 L
Engine Type	Liquid-cooled, 4-stroke, DOHC, 3-cylinder
Maximum Power	87.5 kW (119.0 PS) @ 10, 000 rpm
Maximum Torque	93 Nm (9.5 kg-m) @ 7, 000 rpm
Front Suspension	Telescopic fork
Rear Suspension	Swingarm