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What this? Doesnt look factory

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    #16
    Originally posted by geol View Post
    Inside your right handlebar switch the power coming off your kill switch loops OUT to the coils on the orange/white and then down to the start button. On my bike, that wire comes out and goes to a yellow/green wire that goes through the clutch interlock and then down to the starter solenoid. I can't imagine it did much good for the starter solenoid to have that wire hot all the time which is what they did here if the blue ran to it. The clutch interlock connects in the headlight shell and can easily be by-passed. I would test the yellow/green wire coming out of the right handlebar switch to where it comes out in the headlight shell and see if it has 12VDC when the start button is pushed. If your clutch interlock is bad (which is probably why the hack was performed), then connect the yellow/green out of the right handlebar switch to the yellow green going to the starter solenoid if the wire still is connect to the starter solenoid. If it isn't, then run a new one and solder it to where the blue wire was likely soldered by another cold solder joint.
    The yellow/green wire does have power, or it did after I plugged everything in properly. The clutch handle was snapped off when I got the bike which explains why the yellow/green wire wasnt connected (Bike came free with a 60s fiberglass boat project my dad bought, cant really complain about condition too much). However I dont think it was a bypass for the clutch interlock, as this blue wire was attached to the solenoid using the same pole as the starter motor. the starter will still engage with or without the blue wire connected the only difference is spark at the plugs.

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      #17
      Originally posted by posplayr View Post
      strongly suspect a poorly executed Coil Relay Mod.

      I thought I had replied to this earlier but I must have pressed cancel by mistake. After researching what a coil relay mod is, and how it is supposed to be wired, I think this is the most likely possibility. Maybe the PO meant to add their blue wire to the battery pole of the solenoid, not understanding that it would be constantly hot? Or assumed that the starter pole of the solenoid was always hot with ignition on? Or maybe the PO just was trying to acheive a quicker start by sending full power from the solenoid to the coils during starting?

      I try my best to describe everything as well as I can, but I think it would help alot to maybe draw a diagram showing how its wired. Doesnt look like Ill be getting back to the bike anytime soon unfortunately...

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        #18
        Ok, Ive made a simple diagram to hopefully help explain what Im saying. The rest of the igntion/kill switch circuit and the minimum of what is needed to run the bike is all factory as it should be, but this blue wire is added between the orange/white coil wire and the solenois on the starter pole.

        Attachment came out really small, I hope this is better
        Attached Files
        Last edited by Guest; 05-16-2016, 02:51 AM. Reason: attachment too small

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          #19
          I applaud your effort to draw a schematic but unfortunately it is too small to read.

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            #20
            What you've done there is to use the starter relay as a coil relay that only works when the starter button is held down.
            As soon as the button is released the normal coil supply will leak away through the starter motor which is now in parallel with the coils.
            This looks to be a bad idea.
            97 R1100R
            Previous
            80 GS850G, 79 Z400B, 85 R100RT, 80 Z650D, 76 CB200

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              #21
              I think Breandon has it; this mod only boosts coil voltage when cranking . Probably when you nines it most so I would call this the really " poor man'a" coil relay mod.

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                #22
                It would work, but there needs to be a diode in the blue wire.
                ---- Dave

                Only a dog knows why a motorcyclist sticks his head out of a car window

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                  #23
                  Was thinking that too but, what's the forward drop going to be ?
                  No free lunch
                  97 R1100R
                  Previous
                  80 GS850G, 79 Z400B, 85 R100RT, 80 Z650D, 76 CB200

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                    #24
                    Originally posted by Grimly View Post
                    It would work, but there needs to be a diode in the blue wire.
                    Yea, looks like a classic brain fart.

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                      #25
                      I think the blue wire is a "Band Aid" that was applied over the wrong wound.

                      Yep, right idea, but wrong way to do it.

                      I would suggest disconnecting the blue wire, then letting us know what you have left.

                      Suggestions:
                      1. Does the ignition key turn on the various circuits? (lights, signals, horn, etc.)
                      2. Does the starter work?
                      3. If the starter works, does the engine start and run?

                      Just let us know what you are experiencing, we can do the diagnosis, but it's best to start with no modifications (like the blue wire).

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