Speedmaster Mystery Switch

Not much help I know but check the wiring colours and find a wiring diagram from Haynes of similar to see what the wiring is for.

 

Alarm switch for the seat would be my guess....

 

I've got a speedmaster but it doesn't have this switch so I'll hazard a guess it's an add on fitted by a previous owner...sorry but I don't know what it's for

 

That's definitely not std.

 

Hi, I found a similar, if not the same switch, once it seemed to have been stuck to the side of the frame top tube. It also did not seem to do anything. Mine was white though, and i could not find any reference to it in my Haynes manual or wiring diagram. An alarm seat swich would make sense. If you put the alarm in winter (service) mode it wouldn't do anything. Mine came lose from the frame and could be why the alarm randomly went off. I shall investigate further next time I have the tank off. Thanks for the info

 

Definitely agree with tcbandit.
The micro switch will have been strategically placed under the seat.
Waste of time looking thriough wiring diagrams because it will have been an add on.

 

Agreed, its probably an alarm switch. probably for the seat. For some odd reason mine was put under the Tank. Next time I have the tank off i'll have a play.

 

That was the conclusion in the other thread