Hello to all,
Looking for opinions and options for a switch to delay (through a relay) the activation of some or most of the circuits on my Commando until it is up and running.
I want only the ignition to have power until the bike is running. The electrics aren't an issue for me thankfully.
What I need to figure out is how best to power a relay when the motor is running.
1) oil pressure.
Is there a fitting with integral switch that I can install that would close at the low pressures seen on a warm running Commando? I think I have seen a fitting that goes in place of the nut at the oil line where you would shim to adjust pressure but can't find it in a search.
2) Vacuum.
As an alternative to oil pressure I have been wondering if I could tap into my Mikuni or it's manifold with a switch operated by vacuum.
3) Exhaust.
Two schools of thought in my distracted mind. Either pressure in, or temperature of, the exhaust. I would think I would need to weld a bung into one of the header pipes to sense that the motor is running by exhaust pressure or gas temp. This method is my least favorite because I am least familiar with the sensors involved.
NO matter what I do I will be controlling a properly sized relay that will close the main feed for the fuse block. A separately fused circuit from the battery will be for the ignition circuit through the key switch. I want max power for the ignition at startup.
If you have a link to a switch you think might work please throw it out there.
Sorry if I am rambling but it is good to get these thoughts out of my head and out in public.
Any constructve opinions appreciated.
Jeff
Looking for opinions and options for a switch to delay (through a relay) the activation of some or most of the circuits on my Commando until it is up and running.
I want only the ignition to have power until the bike is running. The electrics aren't an issue for me thankfully.
What I need to figure out is how best to power a relay when the motor is running.
1) oil pressure.
Is there a fitting with integral switch that I can install that would close at the low pressures seen on a warm running Commando? I think I have seen a fitting that goes in place of the nut at the oil line where you would shim to adjust pressure but can't find it in a search.
2) Vacuum.
As an alternative to oil pressure I have been wondering if I could tap into my Mikuni or it's manifold with a switch operated by vacuum.
3) Exhaust.
Two schools of thought in my distracted mind. Either pressure in, or temperature of, the exhaust. I would think I would need to weld a bung into one of the header pipes to sense that the motor is running by exhaust pressure or gas temp. This method is my least favorite because I am least familiar with the sensors involved.
NO matter what I do I will be controlling a properly sized relay that will close the main feed for the fuse block. A separately fused circuit from the battery will be for the ignition circuit through the key switch. I want max power for the ignition at startup.
If you have a link to a switch you think might work please throw it out there.
Sorry if I am rambling but it is good to get these thoughts out of my head and out in public.
Any constructve opinions appreciated.
Jeff
