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1982 gs1100g volts drop

  • Thread starter Thread starter crpowell67
  • Start date Start date
heres the wire that was melted at other end was melted to hence the tape

DSC_0823.jpg
 
posplayr said:
Why grounding is important; "Do you have a single point ground yet?"
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the wire in my hand was hooked to solenoid where the ground wire was hooked I just didnt put it back on while i was searching for open areas
 
I had this issue when i first got my 82 1100g. Turned out that the regulator/rectifier was bad. I did a little research and called a buddy of mine, who just happened to be an awesome electrician with over 20 old jap bikes, and he came over with a mm and poked around for about 10 minutes and told me it was no good. I had the same thinking you did. Tried to charge and wouldn't take it. Got the new battery and smoked out the wiring at the solenoid, fun to redo. I did order the battery dry and just had a local bike shop fill with acid and charge it up. But with my bike it turned out to be the regulator/rectifier.
 
adam said:
I had this issue when i first got my 82 1100g. Turned out that the regulator/rectifier was bad. I did a little research and called a buddy of mine, who just happened to be an awesome electrician with over 20 old jap bikes, and he came over with a mm and poked around for about 10 minutes and told me it was no good. I had the same thinking you did. Tried to charge and wouldn't take it. Got the new battery and smoked out the wiring at the solenoid, fun to redo. I did order the battery dry and just had a local bike shop fill with acid and charge it up. But with my bike it turned out to be the regulator/rectifier.
Click to expand...

I will give that a check tomorrow I just watched a video on how to check the r/r. Any chance you can take pic of your solenoid so I can see how many wires go to it and which post
 
Brendan W said:
Just been looking at pics of a badly burned 'busa. Batteries blew up. Checking around the web I might be rethinking my have a go approach when you see the injuries and damage. They can't all have been one in a million.
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Just wondering about those "blown batteries". :-k

What percentage of them might have been lithium packs, installed in an effort to shed a few pounds?

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Steve said:
Just wondering about those "blown batteries". :-k

What percentage of them might have been lithium packs, installed in an effort to shed a few pounds?

.
Click to expand...

The 'busa was Lithium. Lots of others were plain old lead acid. Common thread seems to be completely discharged and low electrolyte levels. Implication is lots of gas and a spark internally.
 
Thanks. I was wondering because lithium batteries require a different charging curve for optimum charging. The rather primitive systems on our bikes simply don't provide that. Yeah, they will work for a while and appear to do well, but they could do SO much better if they were charged properly.

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The particular 'busa was or is the worlds fastest. The owners comments were that ' apparently we didn't read the instructions for wiring it up' or similar. As such it's a bit of a one off. More worrying are the explosions in the course normal daily use or abuse. Search images of battery explosion but be prepared for some horrific injuries to reasonably competent people who weren't messing about.... or didn't think they were at the time.
 
Well I did a test on R/R if i did it right it is saying it is bad what i did is as follows ( MM=Multimeter )

MM on diode mode hooked red MM lead to positive wire from R/R RESULTS WIRE 1= 0 WIRE 2= 19 WIRE 3 = 15
MM on diode mode hooked black MM lead to positive wire from R/R RESULTS WIRE 1 = 17 WIRE 2 = 18 WIRE 3 = 14
MM on diode mode hooked red MM lead to ground from R/R = all 3 wires resulted in 0 ...same when switched to black MM lead

don't know if i did it right or if how i explained it makes sense or not

crpowell67 said:
I will give that a check tomorrow I just watched a video on how to check the r/r. Any chance you can take pic of your solenoid so I can see how many wires go to it and which post
Click to expand...
 
crpowell67 said:
heres the wire that was melted at other end was melted to hence the tape

View attachment 36232
Click to expand...

Bike harness ground wire to the battery box, Melted at both ends (other end at bike frame, top of frame near battery), that is what happens when R/R fails in a certain way, dumps lots lots of current down its ground wire to the battery box (battery box not well grounded to frame), and then this wire that grounds the battery box ends up carrinying that current to the frame ground. And can then also melt other adjacent wires in the harness.

This is why I say to add your own ground wire from that point on the battery box (solenoid mount bolt) to frame groaund or batt- . There are other reasons too.

Any update in month since last post....?

.
 
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