Likely loose ground - what do I check

So bike threw a code while riding it yesterday. It went into limp mode (3k steady no throttle response) I pulled over and it was hunting like crazy. I shut if off, looked it over, turned it back on and it fired right up. Rode for another 3 - 4 miles at 75mph and then pulled off the highway. Put it in neutral and it sputtered and died. Tried to start it and the starter just whined and clicked. I think I recall smelling something but I didn't see any smoke and the smell cleared before I got my helmet off. After some advice I jiggled the ground wiring and it fired right up. Rode home on surface streets with no issues. CEL cleared by the time I got home and a few tests show it fired up easily.

Seems like I have a loose ground based on this. Interesting related issue, my up until recently flakey neutral switch has stopped working entirely. I guess the main question is, am I good to just check connections and tighten everything up or am I going to need to go through the entire wiring harness?

There are some ground terminals on the engine in 2 spots I believe, plus the battery terminals.

Your neutral switch is another separate terminal which can come loose. I recall it's a spade terminal located on the rear of the engine.

Thanks! Any thoughts on the likelyhood of damage running it loose other than some strain on the ignition system?

Follow-up, no damage at all, runs like a champ again. One more thing to keep an eye one to ensure it doesn't rattle loose.

N4teTheGreat said:

Follow-up, no damage at all, runs like a champ again. One more thing to keep an eye one to ensure it doesn't rattle loose.

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So it was the ground wire to the starter?

Nope, literally just the connection at the negative battery terminal. Everything else was nice and tight.