Yamaha F150A - Electrical Technical Data; Ignition Timing Control System

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Electrical technical data
Electrical technical data
Ignition timing control system
Spark plug
Gap 1.0–1.1 mm (0.039–0.043 in)
Spark plug wire
Resistance (#1) 4.6–10.9 kΩ at 20 °C (68 °F)
Resistance (#2) 3.3–8.0 kΩ at 20 °C (68 °F)
Resistance (#3) 3.8–9.3 kΩ at 20 °C (68 °F)
Resistance (#4) 4.2–10.0 kΩ at 20 °C (68 °F)
Ignition coil
Input voltage 12 V
Output peak voltage (reference data) 210.0 V at cranking (loaded)
260.0 V at 1500 r/min (loaded)
270.0 V at 3500 r/min (loaded)
Primary coil resistance 1.530–2.070 Ω at 20 °C (68 °F)
Secondary coil resistance 12.50–16.91 kΩ at 20 °C (68 °F)
Pulser coil
Output peak voltage (reference data) 3.5 V at cranking (unloaded)
3.0 V at cranking (loaded)
21.0 V at 1500 r/min (loaded)
39.0 V at 3500 r/min (loaded)
Resistance 459.0–561.0 Ω at 20 °C (68 °F)
Air temperature sensor
Input voltage 4.75–5.25 V
Resistance (reference data) 2.2–2.7 kΩ at 20 °C (68 °F)
0.32 kΩ at 80 °C (176 °F)
Air pressure sensor
Input voltage 4.75–5.25 V
Output voltage 3.21 V at –20.0 kPa (–0.20 kgf/cm
2
, –2.9 psi)
2.16 V at –46.7 kPa (–0.467 kgf/cm
2
, –6.8 psi)
Engine temperature sensor
Input voltage 4.75–5.25 V
Resistance (reference data) 128.0 kΩ at 5 °C (41 °F)
54.20–69.00 kΩ at 20 °C (68 °F)
3.120–3.480 kΩ at 100 °C (212 °F)
Thermoswitch
Input voltage (reference data) 11.5 V
Switch ON temperature 84–90 °C (183–194 °F)
Switch OFF temperature 68–82 °C (154–180 °F)
Shift cut-off switch
Input voltage 4.75–5.25 V
Free position resistance (reference data) 4.465–4.935 kΩ at 20 °C (68 °F)