I had a kind of embarrassing, self induced, issue yesterday that turned out fine, chalk it up to a learning experience.
I met some people about 30 miles from home, we all drove separately, I took my bike. When I came out of the business roughly 2 1/2 hours later, the other 2 got in their cars and went their separate ways, I hopped on my bike and noticed that my ignition switch was turned on! Bike would not start, of course. I called one of the people back and asked them to bring jumper cables, meanwhile, I got my seat off and started looking around for the pos/neg battery terminals, I'm not sure if many of you have had to do this, they are not right there out in the open on a 2022 Road Glide Special, so anyway, the car and jumper cables showed up, I got to the terminals, another rider pulled in to see if I needed help which I thought was really nice(thank you, again if you're reading this, nice young man!). We talked about whether or not the car jumping my bike should be started, thankfully I was pretty insistent that it should be turned off(I know I read that somewhere), he thought the car should be running. Anyways, with the car turned off, cables attached, the bike started right up. I thanked him and he went on his way. I saw on the way home that I had a check engine light on. I got my bike home and put it in the garage on my battery tender. I came home last night, turned the bike on and the check engine light was still on. I went into the DIAGS, found an ECM code P1608h, I referenced that, low battery code, which makes sense. I'm not sure if this is a code that would clear itself or not but I cleared it anyways. So everything turned out ok. I've had to push start my older, lighter bikes before, but I'm not sure how that would work on an 850 pound road glide in a flat parking lot with plenty of traffic. As I said, I've read about jump starting, but never actually did it before, nor have I ever cleared a code on this bike. I just wanted to share my experience, jumping from a car does work as it should. This morning I found the box for my battery tender and it came with a separate cable that will plug right into to my tender connection, with pos/neg clamps on the other end, that's in one of my bags now. Sorry this post is long- winded, I'm just glad I didn't f&$# anything up.

 

Glad all worked out.

 

Sometimes it just takes riding it for a while and the codes will clear.

 

The code is historical. Clear it and you should be fine.

 

If there is a next time, go to the starter just behind the engine, flip the rubber boot up out of the way, attach the positive jumper there. It is a tight fit in there so be careful. Find a good ground for the negative and start the bike. Regarding the push start technique, I tried it with a dead battery, and it was entertaninglly funny but it did not work.

 

I don't know how old your battery is but standard bike batteries do not like to be totally discharged. It's not like a deep cycle one. Keep and eye on it and you may even have it checked for CCA at a shop. On another note, when I worked in a Harley Service shop at a dealership it was common for folks to come in and think their battery was dead only to find out the negative cable had worked a bit loose. Good to check those too

 

Thanks Gunny and everyone. My bike s a 2022, with the original battery. It didn't go completely dead yesterday, it just wouldn't turn over enough to get it started. I will keep an eye on it, I'm more mad at myself for leaving the ignition on than anything. We finally have some rain-free days so we'll be getting out riding all weekend, or at least that's the plan! Enjoy everyone!

 

Glad everything worked out. I have one of these portable jump starters for my cars and I carry one on my bike. I have AAA, but this gets me going in about 5 minutes.

 

I wanted to be able to jump start my bike without needing tools to remove the ECU tray, so I bought the NOCO boost adapter cable and routed it behind the right-side side cover. It plugs directly into the output of the NOCO 1000-amb GB40 battery booster that I always carry in the saddlebag. The wire gauge on the NOCO adapter is sufficient for jump-starting, unlike the standard SAE charging adapters.

 

Both of these points are lessons one is lucky to learn from others before they try it themselves.

1. Jump start the bike from the starter terminal. Takes seconds. Don't waste time digging under the seat and moving all that crap around just to get to the battery.

2a. You cannot push start an injected bike with an absolutely dead battery as the fuel pump does not have enough voltage to run.
2b. You typically cannot start an injected bike with a marginally dead battery by simply pushing the bike and popping the clutch as the fuel pump hasn't received a run signal which is sent by the BCM/Start button.
If you ever find yourself in 2b, push the bike and while you pop the clutch, hit the start button at the same time.... you might get lucky.