PLEASE HELP!!!! 1984 GS550L starting problems (Earl around?)

[earlfor]

OK, after some head scratching, :-)................ the plug with three wires is from the crankshaft sensor/signal generator on the right end of the crank.

The remaining wires in the four wire plug go to the coils. You have two black with white piping, 1 black with yellow piping, 1 orange with white piping and 1 solid white. (thats 5 wires BTW on a 4 wire plug) :-)
Unfortunately, of the dozen or so wiring diagrams I have for various GS models, none of them show 5 wires in those exact colors. I still need someone with a 84 550L diagram.

Earl

Ok guys. Bought a multimeter today and checked the coils and they seemed ok. My ignitor box has two plugs that connect to it. One comes from the side of the engine (stator?) and has three wires 1 brown, 1 green wtih white piping, and 1 black with white piping. The other plug runs to the coils i guess. That plug has 2 black with white piping (coming out at the same spot), 1 black with yellow piping, 1 orange with white piping, and 1 solid white wire. How do i test this ignitor box and im guessing the stator? Thanks.

[Anonymous]

I'm sure you've already thought of or looked at this, but maybe you haven't. bikebandit.com doesn't have an 84 550L as an option.

Here is the wiring harness diagram for the 84 550ese. It probably won't help, but just in case...

[earlfor]

Thats harness layout. Unfortunately, I need a schematic showing individual wires and their colors.

E.


[quote="bradleydr20"]I'm sure you've already thought of or looked at this, but maybe you haven't. bikebandit.com doesn't have an 84 550L as an option.

[Kabonkie]

Earl, looks like the same for an 83, except for the two wires fromt the same spot. Here is what the diagram says.
Four wire plug: White to coils, Orange /white to kill switch/starter button, Black/white to fuse panel, Yellow/Black to coils.
Three wire plug: All three to the pickup coil.

If you need to look at it, then I could scan it and e-mail it to you.

Hope this helps.

[earlfor]

Ok then, orange/white is normally a positive wire and the kill switch and starter circuit are + on the switched side so...........orange white is +.

Black and white to fuse panel. There are no negative leads off of the fuse panel that I know of. It would be 12+ power supply.

Yellow/black is normally neg to the right coil.

That leaves white, and it should be the neg for the left coil.

That would mean that to test the ignitor, if you put the multimeter probe + on the orange white and the probe neg on the white, disconnecting the neg probe should fire the 1,4 cylinders.

Putting the + probe on either the orange/white or the black and white and meter neg on the yellow/black should result in the 2,3 cylinders firing when the neg lead is disconnected.

The problem is this is an educated guess.

Before doing this, I would unplug the ignitor connector from the wiring harness and turn the ignition switch on. Take a multimeter and check the wire colors on the harness end to verify that + and negative wires are as I have guessed. If not, STOP.

Earl

Earl, looks like the same for an 83, except for the two wires fromt the same spot. Here is what the diagram says.
Four wire plug: White to coils, Orange /white to kill switch/starter button, Black/white to fuse panel, Yellow/Black to coils.
Three wire plug: All three to the pickup coil.

If you need to look at it, then I could scan it and e-mail it to you.

Hope this helps.