82 GS 650L..What plug wire goes to what plug?

[Guest]

Putting this back together. There are very confusing wire markers on the plug wires.

OK, looking at the coils from rider position....They are marked like this.....

L side of left coil.....1-3
Rt side of left coil......2-4

L side of rt coil....1-3 W-1-4
Rt side of rt coil.....2-4


Don't know who put these on. This bike was in several pieces when I bought it last year. Any help would be appreciated. Thanks

[cowboyup3371]

Typically left coil will go to 1 and 4 and right to 2 and 3

[Steve]

The size and shape of the plug caps should be another clue, unless someone has changed them.

The caps for 1&4 are shorter than the caps for 2&3.

Typically, the left coil powers plugs 1&4, but I got one bike several years ago that was opposite.
Obviously done by a non-knowing owner, not Suzuki.

.

[abaton6]

Thanks Steve

[Steve]

Your description in post #1 seems a little funny, but your diagram in post #4 is correct. Take the fuel tank off, look at the small wires going to the coils. You will see that both coils have an orange/white (that's an orange wire with a white stripe) wire. One also has a white wire, the other also has a black/yellow wire. The coil with the white wire should be on the left side of the bike (but it doesn't really matter), and the larger wires will go to spark plugs 1&4. The coil with the black/yellow wire should power spark plugs 2&3.

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