Gas G8 electrical problem (runs sluggish)

[Bigmugs]

Just bought a 1992 gas g8. Runs but not as it should. First when I drove it it seemed fine. Then it seemed sluggish. When I put it in reverse it took off with full power and ran great. When put in forward it was sluggish and did not have the top rpm range it should.
Changed spark plug, cleaned carb. With no change. Started looking around and moving wires when it was running on jack stands and I got a shock. Found the ground cable that is behind the fan and hooked in with the pulse coil was burnt off. Replaced ground cable and pulse coil wire. No change. Unbolted reverse buzzer micro switch and ran cart on jack stands. Cart runs sluggish with switch depressed. If you let the switch go the buzzer goes off and it runs a lot faster and pepier. Depress the switch and it slows down.
Removed wire harness and checked all wires, but no problem found. Unplugged micro switch and cart runs sluggish. Don't know what to do. Added more ground cables but no change. Thinking about changing the pulse coil because the ground by it was melted and maybe it is damaged and shorting out. Ohms are 360 but don't know the spec for new one. Any ideas would be greatly appreciated.

[smallblock450sl]

Welcome to BGW and on your new ride I have found in the past that the reverse buzzer signal can create a bad ground signal witch cause the ignitor to give a bad signal to the coil. Yamaha also "pigtailed" a small 14 gauge wire into the negative battery cable that atatches to the end plate of the starter/generator, cut back the electrical tape, cut off the small wire, use a small eye end and reattatch it to the same "stud" as the negative cable. Also check the "built" style connectore from that small wire that plugs into the main wire harness. Remember, the "spark" is based on open/closed ground, bad ground, bad spark. Good luck

[Bigmugs]

I unplugged the buzzer and it runs sluggish. The only way I can get good power and throttle response is with the buzzer going off. Sometimes the buzzer quits and if you tap it, it starts buzzing again. If the buzzer quits so does the good engine performance. The buzzer was zip tied to some wires and not grounded to the frame. When I ground it the good performance goes away also.

[Bigmugs]

Does anyone have specs for ohms reading on the pulse coil, or any other electrical parts?

[Bigmugs]

Ordered a manual and followed the flow chart which led me to the ignititor. All other components checked out and when I checked the plug on the ignititor i found some corrosion. Replaced ignititor and runs great.

[Dave in VA]