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Yellow/Black Wire help

  • Thread starter Thread starter SilverWolf
  • Start date Start date
S

SilverWolf

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Hey guys can anyone tell me where this wire bolts onto? schematic doesn't tell me. thanks
 
ps sorry its slanted i didnt realize till after i posted it:D
 
Search for the big post that it goes on? Other than that untape the harness until you find the end. Maybe it went to something no longer on the bike.
 
Looks like the ground that lands under the missing bolt of your r-r there. That is your r-r behind the wire, missing a bolt, right? Also, what model are you working with?
 
Regulator recitifier? yeah. it was missing that screw when i took the plate apart. so can that wire just ground out anywhere on the frame then? its an 83 gs400e
 
No, ground the R/R with it

unless, you don't want it to charge
 
Black/yellow is weird for a ground... usually they're black/white.

I'd be using a multimeter to check continuity to other ground connectors on the harness first just to be sure...
 
Big T said:
No, ground the R/R with it

unless, you don't want it to charge
Click to expand...

dito. If it's coming out from the same harness as the rest of the wires from your regulator/rectifier (the thing in your picture) it needs to ground to the R/R under the missing screw.
 
SilverWolf said:
pete does your 450e have this yellow black wire?
Click to expand...

Not like that no, in fact I can't recall anything in that area that's black/yellow.

I just happened to be continuing my harness tidy up tonight which included mounting the R/R, starter solenoid, and indicator flasher relay, and definitely nothing like that around there.

All my grounds are black/white except a lead I made up to go from the frame to my custom electrics tray and it happens to be black/brown (or maybe red, bit faded).

I'd tend to agree with the other guys that it's a ground going by the connector, but I'd definitely check for continuity between that and the other grounds on the harness to be sure.
 
These may not be correct for all years, but seems to be what they used mostly:
Suzuki uses Black/White for ground
Honda uses Green for ground.
Yamaha uses Black for ground
Kawasaki uses Black/Yellow for ground

So that is most probably an Ex Kawasaki regulator and that wire is hanging about looking for a good ground to come by soon.;)
 
Good call Andre! Although it does appear to be coming from the harness rather than the R/R... bit hard to tell for sure though.
 
no its coming from the harness. it goes to ground but so do the positive and negative wires.... im just not sure where it bolts back onto because my dad unhooked those wires when we were removing the battery
 
ps on the right side of the bike there is the black and white wire that hooks up to the negative terminal on the battery
 
pete said:
Good call Andre! Although it does appear to be coming from the harness rather than the R/R... bit hard to tell for sure though.
Click to expand...

AFAIK Suzuki does not have any Black/Yellow wires with large ring teminals. Maybe someone replaced a Black/White tail to ground lug (which are prone to melting) with a bit of Black/Yellow.
The only way to determine this is to remove the insulation tape and trace it back and see if it connects to the main Black/White ground in the harness. If you are lucky you will only have to trace it back a short way.

Other Black/Yellow wires on a GS are as previously mentioned, ignitor to coil and tach(with electronic tach) and fuel level sensor to gauge. Other models may have used it somewhere else as well.
 
SilverWolf said:
no its coming from the harness. it goes to ground but so do the positive and negative wires.... im just not sure where it bolts back onto because my dad unhooked those wires when we were removing the battery
Click to expand...

If you know for sure that it's a ground lug, then it just needs to go somewhere it'll get a good ground.

Try either the R/R where its ground lug is or on one of the starter solenoid bolts. The actual bolting point for ground connections is only important in terms of if it gets a good ground or not.

I put as many as I can onto one bolt with a known good ground connection, and my whole electrics tray is now grounded also as I made it from galvanised steel (that's one of the starter solenoid bolts):

 
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