97 GS500e running on one cylinder

[32turtles]

I have a 1997 Gs500e that's running on one cylinder, I've searched through others who have had the same issue and so far I have

-Compression Tested the bike
-Adjusted the valves and they are in spec
-Rebuilt the carbs and both carbs are now getting gas
-replaced and tried swapping the plugs from side to side
-swapped the coils from side to side
-looked at the little grounding wire coming off the negative battery terminal, it looks fine


Before I rebuilt the carbs one of the downpipes wouldn't get very hot at all. Now it gets pretty hot. The bike idles, but poorly and still seems like it's running on one cylinder. I can hear the dead cylinder kinda kicking in intermittently.

Not sure what to check next, I've tried looking at the voltage at the signal generator I tried testing it by putting the positive from my multimeter onto the signal pick up and the ground onto the small grounding screw that sits below the signal generator, It measured at 10v could that be the issue? Anything else I should check? Thanks

[The Buddha]

Crank trigger AKA signal generator usually will fail when hot. That seems to be OK, so now I still suspect your problems is carbs.
I've seen cases where you have a blocked fuel passage especially the idle circuit and it would do exactly what you describe.
I suspect idle circuit passage (air screw etc, or a synch or a pilot circuit block)
Cool.
Buddha.

[32turtles]

Crank trigger AKA signal generator usually will fail when hot. That seems to be OK, so now I still suspect your problems is carbs.
I've seen cases where you have a blocked fuel passage especially the idle circuit and it would do exactly what you describe.
I suspect idle circuit passage (air screw etc, or a synch or a pilot circuit block)
Cool.
Buddha.

When I rebuilt the carbs I replaced the jets with new ones and cleaned every fuel passage way with guitar string then sprayed it with carb cleaner. I also replaced all the gaskets, o rings and vacuum diaphragms. I'm fairly confident the carbs are good, but im open to checking again after I've ruled out the ignition components. What's a synch?

[Meukowi]

Crank trigger AKA signal generator usually will fail when hot. That seems to be OK, so now I still suspect your problems is carbs.
I've seen cases where you have a blocked fuel passage especially the idle circuit and it would do exactly what you describe.
I suspect idle circuit passage (air screw etc, or a synch or a pilot circuit block)
Cool.
Buddha.

When I rebuilt the carbs I replaced the jets with new ones and cleaned every fuel passage way with guitar string then sprayed it with carb cleaner. I also replaced all the gaskets, o rings and vacuum diaphragms. I'm fairly confident the carbs are good, but im open to checking again after I've ruled out the ignition components. What's a synch?

synchronize the carbs, so theyre getting equal amount of air, theres topics just search for it. Off sync theyre doing crazy things and runs rough

[The Buddha]

Does it act differently when you rev etc ?
Really sounds like carb to me.

Cool.
Buddha.

[32turtles]

Does it act differently when you rev etc ?
Really sounds like carb to me.

Cool.
Buddha.

Sounds real bad when I try to Rev it and dies

[32turtles]

Crank trigger AKA signal generator usually will fail when hot. That seems to be OK, so now I still suspect your problems is carbs.
I've seen cases where you have a blocked fuel passage especially the idle circuit and it would do exactly what you describe.
I suspect idle circuit passage (air screw etc, or a synch or a pilot circuit block)
Cool.
Buddha.

When I rebuilt the carbs I replaced the jets with new ones and cleaned every fuel passage way with guitar string then sprayed it with carb cleaner. I also replaced all the gaskets, o rings and vacuum diaphragms. I'm fairly confident the carbs are good, but im open to checking again after I've ruled out the ignition components. What's a synch?

synchronize the carbs, so theyre getting equal amount of air, theres topics just search for it. Off sync theyre doing crazy things and runs rough

Alright ill look into doing this, thanks

[The Buddha]

Does it act differently when you rev etc ?
Really sounds like carb to me.

Cool.
Buddha.

Sounds real bad when I try to Rev it and dies

What do you mean by sounding bad ? Indicates intake or exhaust leak really if that bad sound is like its sucking air or spitting out the side of the exhaust to head mating area.
Cool.
Buddha.

[32turtles]

Does it act differently when you rev etc ?
Really sounds like carb to me.

Cool.
Buddha.

Sounds real bad when I try to Rev it and dies

What do you mean by sounding bad ? Indicates intake or exhaust leak really if that bad sound is like its sucking air or spitting out the side of the exhaust to head mating area.
Cool.
Buddha.

Hard to describe, it does kinda sound like it's spitting though. It's like a rough chugging noise before cutting out. Wont rev up at all. I don't think ive ever managed to get it above like 2k rpms. I haven't checked for a leak around my intake boots yet, looks like the previous owner put a bunch of liquid gasket/sealer type junk around it. Has a aftermarket Vance and Hines exhaust on it. What do you think?

[The Buddha]

You have the top T in the rear of the carbs open to free air ?
Your float levels are set right ?
This is beyond synch, when not in synch, it will run better on open throttle.

Cool.
Buddha.

[32turtles]

You have the top T in the rear of the carbs open to free air ?
Your float levels are set right ?
This is beyond synch, when not in synch, it will run better on open throttle.

Cool.
Buddha.

The top t is clear. I haven't set the float levels im going to go back into the carbs tomorrow when I have some free time. Thanks for all the help, I think you may be correct about your carb hunch.