Yamaha F400A 2022 - Page 566

A-3
Model F450A/XF450 FL450A/XF450 F400A/XF400 FL400A/XF400
Battery cable length 3.55 m (11.6 ft)
Battery cable conduc-
tor cross sectional area
60 mm² (AWG 2/0)
PTT system
Recommended fluid
ATF Dexron II (except for USA
and CAN)
Yamalube Marine Power Trim and
Tilt fluid or ATF Dexron II (for USA
and CAN)
ATF Dexron II
Electrical system technical data
Ignition timing control system
Spark plug
Spark plug gap 0.8–0.9 mm (0.031–0.035 in)
Ignition coil
Input voltage 12 V
Cam position sensor
Input voltage 5 V
Crank position sensor
Input voltage 5 V
Intake air pressure/temperature sensor
Input voltage 5 V
Output voltage at
-20.0 kPa (-0.20 kgf/
cm², -2.9 psi)
0.79 V
Output voltage at
-46.7 kPa (-0.47 kgf/
cm², -6.8 psi)
1.84 V
Resistance at 0 °C
(32 °F)
5.4–6.6 kΩ
Resistance at 80 °C
(176 °F)
0.28–0.38 kΩ
Engine temperature sensor
Input voltage 5 V
Resistance at 20 °C
(68 °F) (reference data)
2.51–2.77 kΩ
Resistance at 100 °C
(212 °F) (reference data)
0.21–0.22 kΩ
Thermo sensor
Input voltage 5 V
Model F450A/XF450 FL450A/XF450 F400A/XF400 FL400A/XF400
Resistance at 20 °C
(68 °F)
2.25–2.65 kΩ
Resistance at 80 °C
(176 °F)
0.31–0.33 kΩ
Knock sensor
Resistance 504–616 kΩ
Fuel injection control system
Water detection switch
Input voltage 5 V
Fuel injector
Input voltage 14 V
Resistance (reference
data)
1.74–2.04 Ω
Low-pressure fuel pump
Resistance (reference
data)
0.6 Ω
High-pressure fuel pump
Input voltage 12 V
Resistance (reference
data)
0.3 Ω
Direct injection pump
Resistance (reference
data)
0.45–0.55 Ω
Fuel pressure sensor (high-pressure fuel pump)
Input voltage 5 V
Fuel pressure sensor (direct injection pump)
Input voltage 5 V
Engine speed control system
TPS
TPS 1 output voltage at
throttle valve fully
closed (reference data)
0.850 V
TPS 2 output voltage at
throttle valve fully
closed (reference data)
2.840 V
TPS 1 output voltage at
throttle valve fully open
(reference data)
4.340 V