Alternator output


Information and questions on GL1500 Goldwings (1988-2000)
  • Sponsored Links
ncgl1500
Posts: 2
Joined: Sat Sep 05, 2009 1:01 pm
Location: Statesville, NC
Motorcycle: 1998 GL1500SE

Alternator output

Postby ncgl1500 » Sat Sep 05, 2009 1:39 pm



First post ever, I have a 98 SE that i purchased 3 years ago with 50k on it. The previous owner had replaced the Alternator and battery at 45k. He had also installed a voltage meter on the bike. I now have 71k on the bike when riding during cool whether the output is around 13.1 to 13.5 volts, but when the bike is warmed up and the temperature reaches 90 degrees and above the voltage drops to 12.2 while running and 11.3 while idling. I think the brushes are hanging up, has anyone else had this problem?

Thanks
Bill in Statesville, NC



Ralph Zimmerman
Posts: 13
Joined: Fri Sep 11, 2009 10:31 am
Location: Blue Ridge, SC
Motorcycle: 88 Gl1500
03 Vtx 1800r
04 VT 750 Areo

Re: Alternator output

Postby Ralph Zimmerman » Fri Sep 11, 2009 9:03 pm

Bill 1500 alts are known not to charge at ide below 1500 rpms, many have ran their batteries dead during slow speed light parades. The 12.3 is low if you are above 1500 rpms 12.5 in the summer should be the lowest. I would double check the voltage with a multimeter. Was the replaced alt new or rebuilt?

Good luck

ncgl1500
Posts: 2
Joined: Sat Sep 05, 2009 1:01 pm
Location: Statesville, NC
Motorcycle: 1998 GL1500SE

Re: Alternator output

Postby ncgl1500 » Sat Sep 12, 2009 9:52 am

Ralph thanks for your post. The 12.3 volts is while the bike is traveling at highway speeds and the RPM at or above 3000.
I do not know if the alternator was rebuilt or new, the previous owners notes state new alternator and battery.

Bill

RDURAN
Posts: 1
Joined: Mon Sep 14, 2009 10:34 pm
Location: sulphur, la.
Motorcycle: 2000se

Re: Alternator output

Postby RDURAN » Wed Sep 16, 2009 8:58 pm

The ohn alternator puts out 40 amps and any additional add ons tax the system. If your bike isn't idiling high enough it will drain the battery. I got tired of alternator and battery problems and went with the compu alternator which puts out 90 amps and can handle all the add ons.




Return to “GL1500 Information & Questions”




Who is online

Users browsing this forum: RBGERSON and 2 guests