2016 YAMAHA YZ250F ECO mode

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Page 43 of 356

YAMAHA YZ250F 2016  Owners Manual ENGINE SPECIFICATIONS
2-2
EAS1SM9051
ENGINE SPECIFICATIONS
Engine
Engine type Liquid cooled 4-stroke, DOHC
Displacement 250 cm
3
Cylinder arrangement Single cylinder
Bore  stroke 77.0  53.6 mm (

Page 46 of 356

YAMAHA YZ250F 2016  Owners Manual ENGINE SPECIFICATIONS
2-5
Balancer
Balancer drive method Gear
Clutch
Clutch type Wet, multiple-disc
Clutch release method Inner push, cam push
Clutch lever free play 7.0–12.0 mm (0.28–0.47 in)
Fri

Page 51 of 356

YAMAHA YZ250F 2016  Owners Manual ELECTRICAL SPECIFICATIONS
2-10
EAS1SM9053
ELECTRICAL SPECIFICATIONS
Voltage
System voltage 12 V
Ignition system
Ignition system TCI
Advancer type Digital
Ignition timing (B.T.D.C.) 10.0 ° at 2000 r/m

Page 298 of 356

YAMAHA YZ250F 2016  Owners Manual FUEL INJECTION SYSTEM
8-12
EAS1SM9326YAMAHA DIAGNOSTIC TOOL
This model uses the Yamaha diagnostic tool to identify malfunctions.
For information about using the Yamaha diagnostic tool, refer to the op

Page 306 of 356

YAMAHA YZ250F 2016  Owners Manual FUEL INJECTION SYSTEM
8-20
TIP
Make sure that the machine is completely cold before checking the coolant temperature sensor.
Fault code 21
Symptom Coolant temperature sensor: open or short circuit det

Page 307 of 356

YAMAHA YZ250F 2016  Owners Manual FUEL INJECTION SYSTEM
8-21
TIP
Make sure that the machine is completely cold before checking the intake air temperature sensor.
Fault code 22
Symptom Intake air temperature sensor: open or short circu

Page 310 of 356

YAMAHA YZ250F 2016  Owners Manual FUEL INJECTION SYSTEM
8-24
TIP
Disconnect the fuel pump coupler when this diagnostic tool is used. 6 Faulty  ECU Execute the diagnostic mode. 
(Code No. 30)
No spark  Replace the 
ECU.
Fault code 3

Page 312 of 356

YAMAHA YZ250F 2016  Owners Manual FUEL INJECTION SYSTEM
8-26
Fault code 44
SymptomEEPROM fault code No.: an error is detected while reading or 
writing on EEPROM.
Fail-safe systemAble/Unable to start engine
Able/Unable to drive vehicl