all of a sudden no start?

freebyrd24 wrote:

Thank you OMR. Let me try to figure out exactly what you meant. I'd love some idea how to start running through checking wires. First check for voltage from battery going into ignition switch? Could the ignition switch let some things work and not others? I thought it was all or nothing.

Mine powers two or three different lines out as I recall.

Okay I have some preliminary results here. Hopefully you all can help me disect what is going on. So I have voltage across all fuses with ignition switch on.

With ignition switch (key) turned OFF:
power on orange wire has ~12.5 same as batt
orange wire with yellow stripe has only .3 V

With ignition switch (key) turned ON:
every wire has power EXCEPT brown wire and the yellow wire with red stripe.

No power comes from brown wire on ignition switch at any time.

No power on the BROWN wire at the red six wire connection that is to the left of the battery.

Any ideas? Where to go next or what may be wrong?

Thank you!

freebyrd24 wrote:

...have voltage across all fuses with ignition switch on...With ignition switch (key) turned ON every wire has power EXCEPT brown wire and the yellow wire with red stripe....

Typically, red/yellow wire, with switch-ON, feeds bat+ to coil primariy terminals, essential to coil function.

Recall for testing purposes that a hot wire from bat+ terminal to coil primary terminals by-passes the ign switch, whereby the engine should run normally with an otherwise properly functioning ignition.

Would focus on first getting switch-ON bat+ voltage in the red/yellow wires feeding coil primaries.

Good Luck!

Should the brown wire have power coming out of the ignition switch? I'm just not really sure which direction the power should be going. Where does it start and how does it get the brown wire? From the battery, to the fuses? To the rectifier?

I think it will all relate to getting power to the yellow/red wire....

Any suggestions where to look next?

Thank you!

freebyrd24 wrote:

Should the brown wire have power coming out of the ignition switch? I'm just not really sure which direction the power should be going. Where does it start and how does it get the brown wire? From the battery, to the fuses? To the rectifier?

I think it will all relate to getting power to the yellow/red wire....

Any suggestions where to look next?

Thank you!

If needed, here's a link to location where the wiring diagram may be downloaded.

To Downloadable Wiring Diagram

This image shown below is the ignition switch area from the wiring diagram.

I believe the brown wire feeds bat+ into the switch, and that the red/yellow (when switch is ON), feeds bat+ out of the switch.

Edit -- Upon re-examining the wiring diagram, am thinking I'm wrong here about the brown wire. :S

Good Luck!

[Click on image to enhance view]

I'm not sure about that... but I could be wrong!

There is voltage going into the switch through another wire and the brown NEVER sees any power with the switch on or off, so I am not sure what the issue may be.

I believe the brown wire is supposed to see power when the switch is turned on. Can anyone confirm this for sure?

Thank you for that diagram Patton! I did see that and that diagram is fantastic!

Any thoughts? Thank you!

Patton, after going back and re reading your posts after going out and taking a look at everything again i understand what you are saying!!! hahaha sorry for my confusion!
I have no voltage to the coils with the ignition on OR off.

Any idea where I should check next? I consider myself pretty bad with electrics!

I'd look at the right handlebar switch pod. You might have a broken/unsoldered wire. This is where the ignition coils get their voltage from. This run/stop switch may just be corroded or a dead bug may be between the contacts.

I was kind of thinking that too, but had no idea and didnt want to dig into the handlebar pod. But I definately will now. Do you know what wire feeds power into the switch and what wire feeds back out to the coils?

I'm using the wiring diagram from my 82 GPz1100, but there should be a red wire going in and a red wire with yellow stripe going out that feeds the coils.

There might be a six pin connector inside the headlight housing that could be corroded/loose.

I have no power at all going in or out of the killswitch. I have the headlight off so i see all the connections and cleaned them, nothing in those either. any ideas?