Charging system
Road Warrior
Joined: Jan 2007
Posts: 1,276
Likes: 8
From: Minneapolis Area, MN
I'm having the same problem starting yesterday. Here's a link to my thread (unfortunately no suggestions though...just symptoms).
Another symptom I'll add is that with a volt meter hooked up I'd get 13V at the battery. With the engine running above idle I'd get 14.5V. When the tach and lights start freaking out, so do the volts...bouncing from 14.5 down to 8 or so. Kill the engine and it reads 13V again.
After a couple hour cool down I go back out and read 13V. Turn on the ignition and nothing...not a light, flicker, twitch of a guage, click of a selenoid...and the voltage drops to pretty much zero on the meter. Turn the ignition off...back to 13V.
Is yours doing the same pt?
Another symptom I'll add is that with a volt meter hooked up I'd get 13V at the battery. With the engine running above idle I'd get 14.5V. When the tach and lights start freaking out, so do the volts...bouncing from 14.5 down to 8 or so. Kill the engine and it reads 13V again.
After a couple hour cool down I go back out and read 13V. Turn on the ignition and nothing...not a light, flicker, twitch of a guage, click of a selenoid...and the voltage drops to pretty much zero on the meter. Turn the ignition off...back to 13V.
Is yours doing the same pt?
Road Warrior
Joined: Jan 2007
Posts: 1,276
Likes: 8
From: Minneapolis Area, MN
To be clear, I'm not trying to hijack your thread pt, just trying to help us both I guess.
Dr., not sure if you read anything from my above linked post, but I also go zero ohms across the stator plug. The 2005 vintage battery is at the shop to get load tested...pretty sure it's toast. I'd just like to know if it's toast from age / vibration or the charging system.
Dr., not sure if you read anything from my above linked post, but I also go zero ohms across the stator plug. The 2005 vintage battery is at the shop to get load tested...pretty sure it's toast. I'd just like to know if it's toast from age / vibration or the charging system.
Seasoned HDF Member
Joined: Aug 2007
Posts: 8,196
Likes: 3,086
From: NW AR
Yes, I read your thread, that's why I said short or the battery. Your further information that the battery is 5 years old means that should be replaced regardless. 0 ohms across the stator is difficult to measure. You need a pretty good meter to determine if the resistance between the pins is within factory spec. Open is pretty self explanatory.
Road Warrior
Joined: Jan 2007
Posts: 1,276
Likes: 8
From: Minneapolis Area, MN
As suspected, battery shot. Got a new battery in and checked stator while running, 40-45V at or just above 2k rpm. I'd road test it, but I need new rear wheel bearings. Hopefully tomorrow night or Saturday night.
Last edited by mtnlvr; Jul 29, 2010 at 07:14 PM. Reason: I don't know what day it is.
Thread Starter
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Cruiser
Joined: Nov 2008
Posts: 139
Likes: 0
From: Beaver, OK. (No mans land)
mtnlvr
Glad you got yours figured out. I just got a package in today with a new stator ,rotor and regulator. I'm just going to go through the complete system and hope that will fix it.I tried a new bat with no luck.. I will post results when finished Hopefully tomorrow.
Glad you got yours figured out. I just got a package in today with a new stator ,rotor and regulator. I'm just going to go through the complete system and hope that will fix it.I tried a new bat with no luck.. I will post results when finished Hopefully tomorrow.
Thread Starter
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Cruiser
Joined: Nov 2008
Posts: 139
Likes: 0
From: Beaver, OK. (No mans land)
Got new parts installed today and It charges better then it ever has
The only thing that I could find was the rotor had been rubbing on the stator, There was some pretty harsh looking marks on the rotor and the stator had two of the fields shined up from the contact. I guess this would explain the noise I was hearing .
The only thing that I could find was the rotor had been rubbing on the stator, There was some pretty harsh looking marks on the rotor and the stator had two of the fields shined up from the contact. I guess this would explain the noise I was hearing .
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Road Master
Joined: Aug 2010
Posts: 1,205
Likes: 18
From: SE Michigan
Yes i double checked that setting on my meter and have been on 200k so switched to 200 scale and am getting 0.7 but when touching the leads together I get 0.6. I have messed with it for couple hours retracing all the steps. When connecting one lead to ground and the other to the pins of the regulator I get 0.33 at each pin. I hooked everything backup and the symptoms I described earlier with the lights dimming and tach going crazy does not happen now for some reason. Check voltage at the bat 12.6V nothing on turn key on 12.2V startup and the most I can get is 12.5V at 3000RPM. Thinking of just replacing rotor stator and reg.