VOLTAGE DROP AT 2000 rpm


Information and questions on GL1500 Goldwings (1988-2000)
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BENJEE2112
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THE ONE STYLE "WITHOUT" REVERSE ((Danggit))

VOLTAGE DROP AT 2000 rpm

Post by BENJEE2112 »



Is there a DOCTOR IN THE HOUSE? I have a 95 1500i. The other day I missed a gear and over revved 2nd gear. About 10 miles later I noticed it running ruff. I thought a good short Highway run might put things back in perspective. BAD IDEA... I got off the highway and limped back home. Trying Not letting it die at 3 red lights. started digging into it today. Battery was dead. Figured a ground got loose. Charged the new AGM Battery. Cleaned all ground points Started up with a little assistance of a jumper to get the gas flowing again. Running ruff but all cylinders appear to be firing. HEADLIGHT LOW BEAM IS OUT. It lights but very weak.. Checking the voltage. Cranking good at 13.8 from my fairly new LATERACAL alternator. Noticed that around 2000 rpms the voltage is dropping down to 10.8-11.4 all lights go dim until I get off it and rpms drop under 2000 rpms. My Alternator has always run hot. I put my inferred temp reader on it today while it was running. 183F on right side of casing.194F on left side 218F in the middle. I decided to walk away from it, and summon the wisdom of my fellow WINGERS. Any Ideas??? Can my Low Beam headlight malfunction make that happen? Maybe the staiter got fused? Any suggestions will be greatly appreciated. Thanks Ben



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DenverWinger
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1980 GL1100 STD Vetter (2005-)
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1972 CL350 (1980-1988) sold
1978 Suzuki GS550 (1985-2005) sold
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Re: VOLTAGE DROP AT 2000 rpm

Post by DenverWinger »

Likely alternator brushes, sometimes dust from brush wear can cause the brushes to stick in the holders and not make good contact to the armature. A good cleaning will likely fix it. Check for brush wear....
♫ 99 Little Bugs in the Code, ♪
♪ 99 Bugs in the Code. ♫ :(
♫ Take one down, Patch it around, ♪
♫ 127 Little Bugs in the Code. ♫ ♪ :shock:

~Mark

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BENJEE2112
Posts: 124
Joined: Sun Sep 16, 2012 1:06 pm
Location: Port Charlotte, Florida
Motorcycle: 1995 1500i INTERSTATE
THE ONE STYLE "WITHOUT" REVERSE ((Danggit))

Re: VOLTAGE DROP AT 2000 rpm

Post by BENJEE2112 »

Thanks Denver. Are the DAMPERS the brushes? I did replace all those and do remember that they just drop in place. So I can vision that happening now. I'll be pulling it today. (Super tight fit) Oh well. It ain't going to fix itself.

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BENJEE2112
Posts: 124
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THE ONE STYLE "WITHOUT" REVERSE ((Danggit))

Re: VOLTAGE DROP AT 2000 rpm

Post by BENJEE2112 »

Denverwinger… Do you still have that 1980 (VETTER PACKAGE)? I have some stuff from that package if you are interested. The sit op top stereo system-Backrest-fog lights. Let me know and I'll send you pics. When I sold it. The guy moved up north somewhere. I forgot to give him this stuff for it
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DenverWinger
Posts: 1489
Joined: Thu Jun 23, 2011 2:20 pm
Location: Denver, CO
Motorcycle: (s)
1980 GL1100 STD Vetter (2005-)
1993 GL1500 Aspencade (2017-)
1983 Trav-Lite Camper (2010-)
Past rides
1972 CL350 (1980-1988) sold
1978 Suzuki GS550 (1985-2005) sold
1977 GL1000 (2002-2006) sold

Re: VOLTAGE DROP AT 2000 rpm

Post by DenverWinger »

No, The DAMPERS are those rubber pieces that fit in the engine that the alternator drive fits into. #2 circled in diagram.

The brushes are inside the alternator (#6 circled in diagram). You have to split the alternator case to get to them. This is a diagram of OEM alternator, yours will be a little different.


Foglights that sit on top of stereo and backrest? :?: :?: Not sure what you are talking about, pictures would explain....
♫ 99 Little Bugs in the Code, ♪
♪ 99 Bugs in the Code. ♫ :(
♫ Take one down, Patch it around, ♪
♫ 127 Little Bugs in the Code. ♫ ♪ :shock:

~Mark

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BENJEE2112
Posts: 124
Joined: Sun Sep 16, 2012 1:06 pm
Location: Port Charlotte, Florida
Motorcycle: 1995 1500i INTERSTATE
THE ONE STYLE "WITHOUT" REVERSE ((Danggit))

Re: VOLTAGE DROP AT 2000 rpm

Post by BENJEE2112 »

Okay thanks. Should I use brake cleaner spray on them? I saw on your past and present bikes that you have/had a 1980 GW with the VETTER package on it. Do you see the pics now? I posted them on my last reply. Maybe they haven't been approved yet. See above comment/reply

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DenverWinger
Posts: 1489
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Location: Denver, CO
Motorcycle: (s)
1980 GL1100 STD Vetter (2005-)
1993 GL1500 Aspencade (2017-)
1983 Trav-Lite Camper (2010-)
Past rides
1972 CL350 (1980-1988) sold
1978 Suzuki GS550 (1985-2005) sold
1977 GL1000 (2002-2006) sold

Re: VOLTAGE DROP AT 2000 rpm

Post by DenverWinger »

Ya, I see them... Haven't really thought about any new lights on the 1100, since getting the 1500 the 1100 stays pretty close to home mostly and is rarely out after dark, all traveling done on the 1500... Thanks anyway...

Brake cleaner spray should work fine. I wouldn't expect brushes worn out on a fairly new alternator, but check 'em anyway. Stranger things have happened. You can likely get new brushes from your friendly neighborhood Starter/Alternator rebuilder....

Added another thought, If it's getting unreasonably hot might have a shorted diode, could check for that, too.
♫ 99 Little Bugs in the Code, ♪
♪ 99 Bugs in the Code. ♫ :(
♫ Take one down, Patch it around, ♪
♫ 127 Little Bugs in the Code. ♫ ♪ :shock:

~Mark

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BENJEE2112
Posts: 124
Joined: Sun Sep 16, 2012 1:06 pm
Location: Port Charlotte, Florida
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THE ONE STYLE "WITHOUT" REVERSE ((Danggit))

Re: VOLTAGE DROP AT 2000 rpm

Post by BENJEE2112 »

Thanks Denver.It seems my bike issues only happen in the winter. Which is the best time to ride down here in SouthWest Florida. Gotta get back out there and get on it. I appreciate your input.... Ben

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CrystalPistol
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Re: VOLTAGE DROP AT 2000 rpm

Post by CrystalPistol »

BENJEE2112 wrote:
Fri Dec 27, 2019 7:50 pm
Is there a DOCTOR IN THE HOUSE? I have a 95 1500i. The other day I missed a gear and over revved 2nd gear. About 10 miles later I noticed it running ruff. I thought a good short Highway run might put things back in perspective. BAD IDEA... I got off the highway and limped back home. etc
GL1500 is redlined at 5,500, so I'm guessing you reved it some higher than that? Reads like that "lactrical" didn't like it.


I missed a gear once in a car I was dogging at the strip, amp-meter showed no charge afterward … opened hood for a look … had some copper wires hanging out of alternator openings. I maybe missed other gears in cars, but that was the only time I had an alternator puke it's guts.
Make Courtesy your "Code of the Road" …

… & Have a Safe Trip!
:)

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BENJEE2112
Posts: 124
Joined: Sun Sep 16, 2012 1:06 pm
Location: Port Charlotte, Florida
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THE ONE STYLE "WITHOUT" REVERSE ((Danggit))

Re: VOLTAGE DROP AT 2000 rpm

Post by BENJEE2112 »

Interesting. I have decided to replace it. But just for kicks In going to open it up and check the brushes. Opening it voids all warrantees not that it's still under. But if I screw it up instead of fix it. I'll be ok with it. Thanks for the input.

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bellboy40
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Re: VOLTAGE DROP AT 2000 rpm

Post by bellboy40 »

CrystalPistol wrote:
Sun Dec 29, 2019 2:12 pm
GL1500 is redlined at 5,500, so I'm guessing you reved it some higher than that? Reads like that "lactrical" didn't like it.
I missed a gear once in a car I was dogging at the strip, amp-meter showed no charge afterward … opened hood for a look … had some copper wires hanging out of alternator openings. I maybe missed other gears in cars, but that was the only time I had an alternator puke it's guts.
I was under the impression that the 1500 had a rev limiter. Is that not the case?

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CrystalPistol
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Re: VOLTAGE DROP AT 2000 rpm

Post by CrystalPistol »

bellboy40 wrote:
Tue Dec 31, 2019 3:12 pm
CrystalPistol wrote:
Sun Dec 29, 2019 2:12 pm
GL1500 is redlined at 5,500, so I'm guessing you reved it some higher than that? …. etc ….
I was under the impression that the 1500 had a rev limiter. Is that not the case?
I don't know as I never was concerned with it, but if you over-reved it ("missed a gear and over revved 2nd gear"), you exceeded it's design limit. If it has a rev limiter OEM, if the rev limiter is still present, if it worked, if you didn't then over-rev it, then you didn't exceed it's design limit. In either case, I'd never rely on a rev limiter but I know some will.
Make Courtesy your "Code of the Road" …

… & Have a Safe Trip!
:)

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BENJEE2112
Posts: 124
Joined: Sun Sep 16, 2012 1:06 pm
Location: Port Charlotte, Florida
Motorcycle: 1995 1500i INTERSTATE
THE ONE STYLE "WITHOUT" REVERSE ((Danggit))

Re: VOLTAGE DROP AT 2000 rpm

Post by BENJEE2112 »

It was the alternator. I got another new LActrical. This one is a 95 amp. Last one was a 90 amp. From Amazon $145 + tax. I also paid $1.85 for a 3 year protection plan that starts AFTER the manufacturer warrantee. I had a chat with a Amazon rep to see if that protection plan is real and the correct one for that alternator. He checked and said yes. I saved that chat. Hard to believe but for $1.85 It is now covered for 4 years





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