Yamaha YZ 2017 Series, Owner'S Service Manual

Page: 47 / 410

ENGINE SPECIFICATIONS
2-6
Air filter
Air filter element Wet element
Air filter oil grade Yamaha foam air filter oil or other quality foam
air filter oil
Fuel pump
Pump type Electrical
Fuel injector
Model/quantity 30NA-FZ31/1
Resistance 12.0

Throttle body
Type/quantity 30RA-A62U/1
ID mark B291 00
Fuel line pressure (at idle) 300.0–390.0 kPa (3.00–3.90 kgf/cm
2
, 43.5–
56.6 psi)
Throttle position sensor
Resistance 6.30 k

Output voltage (at idle) 0.49–0.51 V
Fuel injection sensor
Crankshaft position sensor resistance 228–342

Intake air pressure sensor output voltage 3.61–3.67 V at 101.3 kPa (3.61–3.67 V at 1.01
kgf/cm
2
, 3.61–3.67 V at 14.7 psi)
Intake air temperature sensor resistance 5400.0–6600.0

at 0 °C (5400.0–6600.0

at
32 °F)
290–390

at 80 °C (290–390

at 176 °F)
Coolant temperature sensor resistance 2512–2777

at 20 °C (2512–2777

at 68 °F)
210–220

at 100 °C (210–220

at 212 °F)
Idling condition
Engine idling speed 1900–2100 r/min
Water temperature 70–90 °C (158–194 °F)
Oil temperature 70–80 °C (158–176 °F)
Throttle grip free play 3.0–6.0 mm (0.12–0.24 in)