550 indicator relay

[DomP]

I've bought a new 2 pin led relay for my 550 but to my surprise the one fitted to my bike is a 3 pin, I thought they were all 2 pin?

[Nurse Julie]

No, originals are 3 pin, modern day replacements are 2 pin. Just leave the green earth wire unattached.

[DomP]

No, originals are 3 pin, modern day replacements are 2 pin. Just leave the green earth wire unattached.

Ah thanks Julie!  I've said it before but electrics is not my strong point...pure witchcraft

[McCabe-Thiele (Ted)]

IIRC you need to connect the remaining two wires the right way round as the terminal markings might be different.

I seem to recall having to reverse the two wires to get mine working - if its an electronic unit you can blow some units with the wrong polarity - worth checking the markings carefully.

With the 2-pin units they fit Positive & Negative earth vehicles  hence the need to check.

[K2-K6]

Some of the cars still use 3 pin.

VAG (volks audi etc) relay "191" is such a beast.

[K2-K6]

Can be bought here https://www.autodoc.co.uk/maxgear/9813662 

[DomP]

IIRC you need to connect the remaining two wires the right way round as the terminal markings might be different.

I seem to recall having to reverse the two wires to get mine working - if its an electronic unit you can blow some units with the wrong polarity - worth checking the markings carefully.

With the 2-pin units they fit Positive & Negative earth vehicles  hence the need to check.

Mine were marked thankfully so an easy job, my cheap LED Ebay indicators work nicely too.