hazard warning lights operation

gpwheels

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Hi all

I am just installing hazard warning lights onto my 1982 R80ST.
I have been sold the switch (to go in the centre console) a wiring loom with relay and diode from motorworks.
I have installed as per wiring diagram attached (from snowbum I believe) but the operation is a bit strange to me as you seem to need to have the ignition on before you can turn on the hazard switch.
Once the hazards are running you can turn off the ignition and they will keep running all be it with the ignition lights still on. Howver, when you switch the hazards off, they stop working which is good but the ignition lights are still on and I have to disconnect the switched live to get them to go out.

If I ignore the switch live and leave it disconnected, they still operate the same but when I switch off the hazards, the ignition lights go out.

Is this normal operation on the old BMW with hazrad lights?

With a car you can turn on the hazard lights with ignition on but I wasn't sure if this is like it for motorbikes to stop someone turning your hazards on when it is parked or left unattended.
 

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The problem I have discovered is that the bike can be started when the hazard lights are on because the ignition is live too.
 
Why would you want to put hazard lights on a bike that's managed perfectly well with out them since the early 80's? Maybe it's trying to tell you something.
 
Why would you want to put hazard lights on a bike that's managed perfectly well with out them since the early 80's? Maybe it's trying to tell you something.

Because i am about to take the bike on a 3 month solo tour of Alaska, Canada and the US and was thinking it may be helpful in alerting other traffic should I break down. ('What' I hear you say, an Airhead break down, never!)
But I thought just in case;-)
 
Im with Rob on this - why add something you dont need (which is clearly causing all sorts of gremlins right now, who knows what in the future) especially prior to a long trip where you need the bike to be as simple and reliable as possible. I have broken down a few times on bikes over the years and never felt unsafe or that I needed hazards (even when I have had hazards I have not used them) More electrics to "carry" more connectons on an old loom, more to go wrong.

If you are really that worried take a warning triangle. 100% reliable !

:beerjug:
 
The problem I have discovered is that the bike can be started when the hazard lights are on because the ignition is live too.

Forgot to add to my post above - if the ignition is live when the hazards are on this may not be good for the bike - IIRC having the ignition on for prolonged periods without the engine running can damage/kill the ignition module due to heat build up. Happy to be corrected tho if i am mistaken.....

:beerjug:
 


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