Nobody know the answer ?

[kipper]

Can I earth the Yellow/ blue wire from the Starter relay to the battery? Question asked in my post yesterday STARTER PROBLEM FIXED? Any advise Guys ?

 

[DJ]

sounds like a question for our electrical wizard....Ken @DEcosse
He may have the answer. He is of course our version of Shell the answer man!

 

[scot in exile]

Bloody Fifers where are they when you need them?

 

[DEcosse]

Well 'earthing' would normally mean connecting to battery negative & you certainly wouldn't want to do that (& honestly don't think that's what you meant)
But you can't connect it to positive either - that needs to be switched or your headlights would be on constantly
Question - what is wrong that you wanted to consider this?

 

[kipper]

Ken, thanks for your response on this ,The reason I wanted to do this is that the pin b24 on the plug that goes into the ECU is faulty and the starter relay will not respond when the start button is pushed, this is the wire that connects to starter relay pin 86.If i understand the wiring to the relay correctly pin 30 Blue/yellow supplies the main power to pins 87 and 87a with switching between them done by pins 85 and 86.The story is, I've got a friend with an 04 Rocket which has had persistant start issues for a long time. 99000miles on it ( push button and click, try again and after a time it fired and ran fine) Last week it woundn't start,not even a click. What i found was that the yellow/ blue wire from the starter relay to pin B24 on the ecu plug was faulty (sometimes making a connection when it was pushed into the terminal block ) . The wire is not broken, it seems the problem is at the connector block where the wire joins the pin in the block .IS it better to repin this connector block ? I have no idea who makes it and it doesn't look too easy to do . When I disconnected the yellow/blue wire from the starter relay terminal block I put a jumper wire in its place and earthed it to the battery - side. the bike started up no problem and the lights switched off and on they should during the cranking and running sequences. so IS IT POSSIBLE just to leave it this way way with the Wire disconnected from the ECU B24. Obviously don't want to damage his ECU.

 

[DEcosse]

All you have to do is remove the yellow/brown wire from the relay socket and connect that relay terminal directly to battery negative
That will still have your starter operate off the button (cutting your headlights, as it does so now);
only difference operationally will be that you will not have clutch interlock
i.e will operate off the start button without pulling clutch
I would just retain the 'normal' habit of pulling clutch, in case you forget after occasion where might have stalled in gear!

Edit - I see where confusion is
The wire from the ECU to relay is Yellow/BROWN
The switched power wire is BLUE/Yellow

So I think your original premise was correct but misidentified the wire colour

Are you sure the ECU connector pin is truly bad?
It would be far more likely to be the actual interlock itself and that most likely caused by the clutch switch
(low battery voltage will also inhibit that same signal and I believe side-stand-up/in gear)
But if you see a physical problem with the connector pin, I guess can't argue with that
Weird how that could happen though ......