ELECTRICAL SPECIFICATIONS (YUM1A/YUM2A)
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ELECTRICAL SPECIFICATIONS (YUM1A/YUM2A)
Voltage
System voltage 12 V
Ignition System
Ignition System TCI
Ignition timing (B.T.D.C.) 16°/3000 r/min
Ignition coil
Minimum ignition spark gap 6 mm (0.24 in)
Primary coil resistance 2.16–2.64 Ω
Secondary coil resistance 8.64–12.69 kΩ
Spark plug cap
Resistance 3.75–6.25 kΩ
Battery
Model 424MF
Voltage, capacity 12 V,70 Ah at 20h rate
Lighting
Headlight LED
Starter generator
Series field coil resistance 0.005–0.007 Ω
Shunt field coil resistance 4.5–5.5 Ω
Brush overall length limit 16.0 mm (0.63 in)
Brush spring force limit 3.4 N (347 gf, 12.2 oz)
Commutator diameter limit 39.0 mm (1.54 in)
Mica undercut (depth) 0.70 mm (0.03 in)
Belt tension 8–12 mm (0.31–0.47 in)/100 N (10 kgf, 22lb)
Voltage regulator
Charging voltage above 14 V at 5000 r/min
Fuel sender
Sender unit resistance (full) 4–10 Ω
Sender unit resistance (empty) 93–100 Ω
Fuel injection sensor
Crankshaft position sensor 152–228 Ω
Intake air pressure sensor output voltage 3.51–3.77 V at 101 kPa (3.51–3.77 V at 1.01 kgf/
cm², 3.51–3.77 V at 14 psi)
Intake air temperature sensor resistance 0.322 kΩ at 80 °C (0.322 kΩ at 176 °F)
Intake air temperature sensor resistance 2.21–2.69 kΩ at 20 °C (2.21–2.69 kΩ at 68 °F)
Engine temperature sensor resistance 210–221 Ω at 100 °C (210–221 Ω at 212 °F)
Engine temperature sensor resistance 2513–2777 Ω at 20 °C (2513–2777 Ω at 68 °F)
Fuses
Main fuse 25 A
Main switch fuse 10 A
Lighting fuse 15 A
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