News:

         
Welcome to FJowners.com


It is the members who make this best place for FJ related content on the internet.

Main Menu

'85 FJ will constantly keep on the starter...

Started by Motofun, October 30, 2025, 12:44:28 PM

Previous topic - Next topic

Motofun

My '85 will grind away ob the starter.  The situation;  key ON, starter button NOT depressed, when I turn the emergency kill button ON the starter starts to run.  The only way to stop it is to turn the emergency kill button OFF.

So I checked the starter button...no continuity when not depressed
Next I checked the starter relay...no continuity across the "power" contacts.
So the starter relay must be getting energized through the starter circuit cut-off relay?????(#42 on the Yamaha circuit diagram)

This should be easy to track down..Just where the hell is this relay located?  I'm open to other ideas on what to track down.  I was hoping that this would be easy....duh....
'75 Honda CB400F
'85 Yamaha RZ350
'85 Yamaha FJ1100
'89 Yamaha FJ1200
'09 Yamaha 125 Zuma
'09 Kawasaki KZ110 (grand kids)
'13 Suzuki GSXR 750 (track)
'14 Yamaha FZ-09
'23 Yamaha Tenere 7
SOLD: CBX,RZ500,Ninja 650,CB400F,V45 Sabre,CB700SC,R1,GSXR1000R

Sparky84

G'day Motofun,

I believe it's part of the flasher unit, which you can't repair but you could install another relay using those wires, 
LHS just near the fuses.

I'd still be checking starter button.
Does it try and start without the clutch in ?

You cannot view this attachment.



1984 FJ1100
1979 Kawasaki Z1300
1972 Honda CB750/4 K2

Motofun

Thanks, it was right there under my nose!  Now is just need to fix my multimeter.... (Pulled a wire free from it's pin connector)  :dash2:
'75 Honda CB400F
'85 Yamaha RZ350
'85 Yamaha FJ1100
'89 Yamaha FJ1200
'09 Yamaha 125 Zuma
'09 Kawasaki KZ110 (grand kids)
'13 Suzuki GSXR 750 (track)
'14 Yamaha FZ-09
'23 Yamaha Tenere 7
SOLD: CBX,RZ500,Ninja 650,CB400F,V45 Sabre,CB700SC,R1,GSXR1000R

Motofun

Finally got my multimeter fixed....next question, Does anyone know if relay #42 (starting circuit cut-off relay) is normally open when not energized?  It seems like it should be that way.  I have continuity across those pins so I'm thinking that's the culprit.
'75 Honda CB400F
'85 Yamaha RZ350
'85 Yamaha FJ1100
'89 Yamaha FJ1200
'09 Yamaha 125 Zuma
'09 Kawasaki KZ110 (grand kids)
'13 Suzuki GSXR 750 (track)
'14 Yamaha FZ-09
'23 Yamaha Tenere 7
SOLD: CBX,RZ500,Ninja 650,CB400F,V45 Sabre,CB700SC,R1,GSXR1000R

T Legg

The contacts are open until the coil is energized.When the key switch and kill switch are on the red/white wire to the coil has 12 volts . Then if the clutch switch or nuetral switch are closed the black/yellow wire to the coil has a path to ground energizing the coil and the contacts close.
 Now when the starter switch is pushed 12volts is supplied to the stafter relay coil through the blue/white wires through the cut off relay contacts .
T Legg

Sparky84

As above, normally open, diagram shows that too.
1984 FJ1100
1979 Kawasaki Z1300
1972 Honda CB750/4 K2