P1608 cel
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5th Gear
Joined: Jun 2023
Posts: 9
Likes: 1
From: Connecticut
P1608 cel
21’ low rider s that gets an intermittent starting issue on a cold start. I’ll try and start the bike and it won’t crank over on the first try, I start it again and it starts up rough and will give a p1608h (intermittent loss of power) cel code. This happened a month ago and I tightened all battery connections and hasn’t happened again until this morning, the bike was not on a battery tender and wasn’t started for about 5 days. Last time it happened the bike went into limp mode but eventually got it started and got it home. I know these Milwaukee 8 motors are electrically sensitive and any drop in power can generate a code. Anyone have this issue? I’m thinking my battery might be going bad. The clock also resets every time this happens.
Last edited by LowriderS CT; Jul 11, 2023 at 08:58 AM.
Intermediate
Joined: Jun 2022
Posts: 36
Likes: 32
From: Illinois
I have a 2007 Fat Boy and a 2017 Heritage Classic. Both were bought used. The 2017 still had its original battery this spring, making it 5+ years old. The 2007 coincidentally had a battery dated 5 years ago. Both bikes started having an issue this year if they were left off of the maintainer for 3 or 4 days. I'd hit the starter, it would crank one revolution, lock, then spin-up and fire. The 2007 failed me on the road one time and I had to jump it. Both bikes would reset the clock when this happened. I did the usual connection checks at the battery and ground wires and both bikes were fine. I charged the 2017, pulled it, and had it load tested. It passed on the first load, failed on the second. I replaced the 2017 battery and the problem was solved. I then replaced the battery in the 2007. In the future I will consider it an early warning that when the clock starts resetting, it's time to think about a new battery. No one should have to buy 2 batteries in one season, but both being over 5 years old - I can't complain.
Seasoned HDF Member
Joined: Sep 2008
Posts: 14,142
Likes: 11,210
From: San Diego, CA
If you have a multi-meter, you can do a load test on your battery before removing it...
Make sure it's been off any battery maintainer for a couple hours. Then measure the standing voltage between the neg and pos battery posts. You should have 12.6+ voltage for a fully charged battery.
If you can't one-hand it, use clips, but now measure the battery voltage as you start the engine. With the key on, the voltage will drop a little.
When it first cranks over, it will drop quickly, and then partially recover. If it drops to below 9.5v during the starting process, your battery is getting tired, and you should consider replacement... There are videos on youtube showing how to do this...
It's always easier to replace a battery in your garage than it is to replace a battery on the road...
Make sure it's been off any battery maintainer for a couple hours. Then measure the standing voltage between the neg and pos battery posts. You should have 12.6+ voltage for a fully charged battery.
If you can't one-hand it, use clips, but now measure the battery voltage as you start the engine. With the key on, the voltage will drop a little.
When it first cranks over, it will drop quickly, and then partially recover. If it drops to below 9.5v during the starting process, your battery is getting tired, and you should consider replacement... There are videos on youtube showing how to do this...
It's always easier to replace a battery in your garage than it is to replace a battery on the road...
Last edited by hattitude; Jul 12, 2023 at 08:14 AM.
Thread Starter
|
5th Gear
Joined: Jun 2023
Posts: 9
Likes: 1
From: Connecticut
I have a 2007 Fat Boy and a 2017 Heritage Classic. Both were bought used. The 2017 still had its original battery this spring, making it 5+ years old. The 2007 coincidentally had a battery dated 5 years ago. Both bikes started having an issue this year if they were left off of the maintainer for 3 or 4 days. I'd hit the starter, it would crank one revolution, lock, then spin-up and fire. The 2007 failed me on the road one time and I had to jump it. Both bikes would reset the clock when this happened. I did the usual connection checks at the battery and ground wires and both bikes were fine. I charged the 2017, pulled it, and had it load tested. It passed on the first load, failed on the second. I replaced the 2017 battery and the problem was solved. I then replaced the battery in the 2007. In the future I will consider it an early warning that when the clock starts resetting, it's time to think about a new battery. No one should have to buy 2 batteries in one season, but both being over 5 years old - I can't complain.
Thread Starter
|
5th Gear
Joined: Jun 2023
Posts: 9
Likes: 1
From: Connecticut
If you have a multi-meter, you can do a load test on your battery before removing it...
Make sure it's been off any battery maintainer for a couple hours. Then measure the standing voltage between the neg and pos battery posts. You should have 12.6+ voltage for a fully charged battery.
If you can't one-hand it, use clips, but now measure the battery voltage as you start the engine. With the key on, the voltage will drop a little.
When it first cranks over, it will drop quickly, and then partially recover. If it drops to below 9.5v during the starting process, your battery is getting tired, and you should consider replacement... There are videos on youtube showing how to do this...
It's always easier to replace a battery in your garage than it is to replace a battery on the road...
Make sure it's been off any battery maintainer for a couple hours. Then measure the standing voltage between the neg and pos battery posts. You should have 12.6+ voltage for a fully charged battery.
If you can't one-hand it, use clips, but now measure the battery voltage as you start the engine. With the key on, the voltage will drop a little.
When it first cranks over, it will drop quickly, and then partially recover. If it drops to below 9.5v during the starting process, your battery is getting tired, and you should consider replacement... There are videos on youtube showing how to do this...
It's always easier to replace a battery in your garage than it is to replace a battery on the road...
Seasoned HDF Member
Joined: Sep 2008
Posts: 14,142
Likes: 11,210
From: San Diego, CA
If you just watch the meter, you will see it dip with your eyes, it's not that fast...
Keep us posted...
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