Engine stop switch

[mybad]

Trying to figure out the last issue with the Blaster I just bought. Starts fine. Wont shut off with stop button or lanyard disconnect. The handlebar switch shows continuity on my multimeter in the pressed position and open in the released position. The black and white wire harness was connected to the habdlebar switch for this test all the way to the Ebox. Currently I have the idle turned down so I can ride it. I had the box apart yesterday. Verified clean grounds.
Anybody have input? Is there anything in the Ebox that control the white and black wire?
Thanks

 

[Dartman]

there is a short sub harness from the switch connector to the cdi bullet plug in
try also adding a ground wire to the electrical box to - on the battery
if that works then you have a bad black ground wire that's run through the stator loom to the backside of stator plate
i have seen one oem yamaha cdi go bad on the white lead (when grounded kills the cdi) and 2 msd cdi's that went bad

 

[JetManiac]

Disconnect the white/black wires plug between ebox and S/s switch. Test black wire continuity to gound on the ebox side. Then jump black wire to white wire on ebox side while motor is running and see if it dies.

 

[mybad]

Disconnect the white/black wires plug between ebox and S/s switch. Test black wire continuity to gound on the ebox side. Then jump black wire to white wire on ebox side while motor is running and see if it dies.

Checked continuity of back wire from ebox to ground. Nothing. I assume this means
1. Bad ground inside ebox
2. Bad pin connector(s) inside box

Should I ground s/s temporarily to block and see if it stops. Wouldnt that isolate problem to ebox ground.

 

[mybad]

there is a short sub harness from the switch connector to the cdi bullet plug in
try also adding a ground wire to the electrical box to - on the battery
if that works then you have a bad black ground wire that's run through the stator loom to the backside of stator plate
i have seen one oem yamaha cdi go bad on the white lead (when grounded kills the cdi) and 2 msd cdi's that went bad

I will try this in the morning. I appreciate your help.

 

[JetManiac]

Checked continuity of back wire from ebox to ground. Nothing. I assume this means
1. Bad ground inside ebox
2. Bad pin connector(s) inside box

Should I ground s/s temporarily to block and see if it stops. Wouldnt that isolate problem to ebox ground.

Yes, try grounding the white wire to ebox any ground to test cdi. If you have no ground on the black wire from ebox, then connector or wire is bad somewhere. Ebox itself must have ground or your motor wouldnt run.

 

[mybad]

Update for anyone who might have the same issue or can explainm why this resolved my problem. I had to isolate the black s/s wire to its own ground bolt inside the ebox. So basically the black wires inside the ebox are grounded to one terminal and the black s/s wire is grounded to a different terminal. Both terminals inside ebox. For some reason when the s/s black wire contacted any other ground wires it wouldnt allow the kill switch to work. Anyone know why?

 

[k-ris]

There is no reason actually, essentially the whole ebox is a giant terminal. The only case would be a corroded or rusty terminal which it was stacked on.

 

[JetManiac]

It should not matter, ground is ground unless you had some bad connections that were fixed by moving grounds around.

 

[mybad]

It must have been the pigtail wire or ring terminal that connects the s/s black wire to the ebox ground bolt. Thanks for all your help. I appreciate it!