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turn signal relay issue

  • Thread starter Thread starter spyder2120
  • Start date Start date
S

spyder2120

Guest
hey everyone, searched the threads and cant quiet find the answer. bike is a '79 750l and the signal relay went out. i replaced it with another thermal relay but it only lasted two days. i bought a two prong electronic relay for trucks and suv's and put in it and it seems to be holding for now. at least for four days so far.lol. anyone have any ideas as to why the thermal relays are dying on me all of a sudden? thanks for your help.
 
Does your bike have auto-cancelling turn signals? :-k

If it does, you can not simply go to the auto parts store for a new flasher relay. Even if you get one of the three-terminal relays, they are not wired the same. In fact, if you look at the wiring diagrams of all the different three-terminal relays in the store, you will see that even they are not all wired the same. :eek:

The flasher relays in our bikes with auto-cancel systems have a type of switch in them that is controlled by the auto-cancel control unit. When that switch is turned ON, current is allowed to flow through the thermal section. Only two of the three terminals are for the flasher, the third one is for the control unit. In the auto part store flashers, the configuration of the three terminals might put the third terminal as a ground or as part of the thermal unit. It is possible to use a two terminal flasher unit, as long as you put it in the correct two terminals in the bike, but you won't have your self cancelling feature any more.

If your bike does not have self cancelling signals, ignore all of the above, as it won't apply to you. :o

.
 
Steve said:
Does your bike have auto-cancelling turn signals? :-k

If it does, you can not simply go to the auto parts store for a new flasher relay. Even if you get one of the three-terminal relays, they are not wired the same. In fact, if you look at the wiring diagrams of all the different three-terminal relays in the store, you will see that even they are not all wired the same. :eek:

The flasher relays in our bikes with auto-cancel systems have a type of switch in them that is controlled by the auto-cancel control unit. When that switch is turned ON, current is allowed to flow through the thermal section. Only two of the three terminals are for the flasher, the third one is for the control unit. In the auto part store flashers, the configuration of the three terminals might put the third terminal as a ground or as part of the thermal unit. It is possible to use a two terminal flasher unit, as long as you put it in the correct two terminals in the bike, but you won't have your self cancelling feature any more.

If your bike does not have self cancelling signals, ignore all of the above, as it won't apply to you. :o

.
Click to expand...
my signals are not self-cancelling. good looking out though
 
Since you don't have self-cancelling signals, a simple two-terminal flasher should work.

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