Adam F
New member
- Joined
- Jan 20, 2025
- Messages
- 2
Bought a "ran when parked" 1984 SRV 540. No spark. I've been searching for some specs for testing ignition components, and have seen some variation. 550 ohms from black wire to brown wire on stator. That's really it. Things I've ruled out - all the safety switches - kill switch, tether switch, throttle switch, and ignition switch. All safety switches have been removed, except for the ignition switch. I unplugged the black/white wire, and I have continuity between ground and the wire with the ignition switch off, and no continuity with the switch on. That tells me that circuit is working like it should. Haven't tested the brown wire yet for ohms. But I did test the orange wire going to the ignition coil, and I'm getting roughly 3 volts AC when pulling the motor over. I want to know, what should I be seeing at the orange wire? And what other voltages/resistance readings should I be seeing elsewhere? Thanks.
74Nitro
VIP Member
From the engine group of wires there is a white with red tracer. Thats the pickup coil. Should have about 15ohms.Bought a "ran when parked" 1984 SRV 540. No spark. I've been searching for some specs for testing ignition components, and have seen some variation. 550 ohms from black wire to brown wire on stator. That's really it. Things I've ruled out - all the safety switches - kill switch, tether switch, throttle switch, and ignition switch. All safety switches have been removed, except for the ignition switch. I unplugged the black/white wire, and I have continuity between ground and the wire with the ignition switch off, and no continuity with the switch on. That tells me that circuit is working like it should. Haven't tested the brown wire yet for ohms. But I did test the orange wire going to the ignition coil, and I'm getting roughly 3 volts AC when pulling the motor over. I want to know, what should I be seeing at the orange wire? And what other voltages/resistance readings should I be seeing elsewhere? Thanks.
Adam F
New member
- Joined
- Jan 20, 2025
- Messages
- 2
Thanks! That's measured from chassis ground, correct? Any idea of what the voltage should be at the orange coil wire?From the engine group of wires there is a white with red tracer. Thats the pickup coil. Should have about 15ohms.
74Nitro
VIP Member
According to my book over 200 unloaded.Thanks! That's measured from chassis ground, correct? Any idea of what the voltage should be at the orange coil wire?