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83 gs750 charging issues

  • Thread starter Thread starter rushton75
  • Start date Start date
R

rushton75

Guest
Hello,

I have an 83 gs750 that wasn't charging. I replaced the stator and rectifier and it seems to be charging now. With the bike at idle I get a reading of 13.61 on the multimeter from the battery. I wanted to check and see if this is good enough? It seems like its on the low end but acceptable.

Thanks, Dan
 
rushton75 said:
Hello,

I have an 83 gs750 that wasn't charging. I replaced the stator and rectifier and it seems to be charging now. With the bike at idle I get a reading of 13.61 on the multimeter from the battery. I wanted to check and see if this is good enough? It seems like its on the low end but acceptable.

Thanks, Dan
Click to expand...
What are you getting at 5k? It should be somewhere between 14 and 15.5v.
 
Everything else checks out though. The battery is more charged after running the bike even at 5k rpm for a minute
 
Rewire the charging system to send the stator wires directly into the R/R?
 
I read that people had done that. Why do the original stator wires go up under the gas tank and then back down? When I replaced the stator the connections at the end under the tank were pretty corroded and burnout so I cut the wires on the bike side back an inch to where the wire looked clean and attached new connectors. I used connectors from the hardware store that matched but weren't copper.
 
I had cleaned the fuse box and put in new spark plugs. Fuse box looks free from corrosion. When i put the new stator in the wires at the end where it connects to the bike under the gas tank were pretty corroded and burnt out. I cut the wires back and inch on the bike side and put on new connectors from the hardware store. Do you agree with Nassism that wiring the stator directly to regulator is a good idea?

Thanks
 
There are about 10,000 posts here in the archives about how to fix the GS charging system.

1) wire stator directly into the R/R. Suzuki routed one leg of the stator feed through the hand control and this must be eliminated and cleaned up.

2) Improve R/R ground. Running the ground straight to the battery is the simple way.

3) Power output from R/R can feed into the old harness, into the fuse box, but you must check for voltage loss through the path on the way to the battery and fix/clean the connectors. Take your volt meter and put one probe on the R/R output wire and another on the + battery post and read the voltage. Then compare the same voltage against a reading straight across the battery. If you are reading more than .2 volts loss you have too much and the connectors must be cleaned/improved.

Extra bonus points for installing a SH775 or Compufire R/R. Do a search and learn how these devices help protect your stator from overheat damage. Credit to Posplyer for educating the forum on this matter.
 
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