gs1000e charging question

[GSSzucs]

Hi All!

I've got a '83 Gs 1000e. I put my question in another thread (charging system headache, but it is in the old technical forum). Posplayr answered.

My problem: I measure the voltage on the battery, it's 13,7V @ 2500 rpm with no lights and 12,5V with lights, and all the same @ 5000 rpm.

Measurin the connection between the battery + and rr +: -2,5-3 V, and same on the battery - and rr-.

I look through the wiring and replace the connectors with new one. i don't see nothing extraordinary (nothing burnt wire,) what should i look for?

i weird the rr this way:
+: one wire from the battery + to the starter relay, from ther it goes to 15A fuse from ther goes to the rr+ and to the ignition switch

-: to the starter relay moutning bolt (ther connects the w/b wire too),
to battery holder mounting bolt, to the battery -

the b/w wire is tied to the battery holder mounting bolt, and to the starter relay mouning bolt.

I have no idea what to do, i think i do anything what i can but nothing change.

I dont know how important but i think i have a 12 AH battery instead of the original 14 AH, and a yamaha fzr6 rr (sh719aa) installed. I read that its capacity is 25 A instead of the 35-50 A which i read on the compatible list.

I hope i was clear.

thank you for the answer

[SqDancerLynn1]

12-14a battery is fine. Check the voltage at the ign switch hi resistance in the switch can cause voltage drop. Clean all the connections on the fuse block..

[Nessism]

On the GSR home page there is a Garage section with a link to the Stator Papers. Follow the instructions to see if your stator is putting out the proper amount of voltage and then to check your R/R. R/R gounding is the number one problem with the GS charging system.

[BassCliff]

Greetings and Salutations!!

Hi Mr. GSSzucs,

These old bikes love clean connections. Check and clean every connector and ground on the entire wiring harness, from headlight bucket to tail light, including the fuse box, the ignition switch, that big ground wire between the negative battery terminal and the bottom of the engine, everything. Run the ground wire from your regulator directly to the negative terminal of the battery. Definitely go through the troubleshooting procedures in the Stator Papers. The links below should have all the information you need, for now.

Anyway, I just stopped by to welcome you to the forum in my own, special way.

If there's anything you'd like to know about the Suzuki GS model bikes, and most others actually, you've come to the right place. There's a lot of knowledge and experience here in the community. Come on in and let me say "HOoooowwwDY!"....

Here is your very own magical, mystical, mythical, mind-expanding "mega-welcome". Please take notice of the "Top 10 Common Issues", the Carb Rebuild Series, and the Stator Papers. Now let me roll out the welcome mat for you...

Please click here for your mega-welcome, chock full of tips, suggestions, links to vendors, and other information. Then feel free to visit my little BikeCliff website where I've been collecting the wisdom of this generous community. Don't forget, we like pictures! Not you, your bike!

Thanks for joining us. Keep us informed.

Thank you for your indulgence,

BassCliff

[GSSzucs]

Thank you for the answer.

i alredy look through the wiring, i think the stator output and the r/r is ok.

SqDancerLynn1: i don't measure the ign switch yet, how can i do this? i' m not a high qualified motorcycle electricant, so pleas tell me where and what should i measure, and which value is good for me.

Now that you mentioned the ignition, i experienced the the ignition key is hand warm, when i run the engine. Could it mean that there is something wrong around the ignition?

[BassCliff]

Hi,

Take out the ignition switch and clean it. Remove the rust and oxidation from the connections. Measure the voltage loss between the "hot" output of the r/r (usually a red wire) and the positive terminal of the battery. It should be only 0.2 volts at 4000 rpm.

See this article: More On The Stator Papers


Thank you for your indulgence,

BassCliff

[posplayr]

My problem: I measure the voltage on the battery, it's 13,7V @ 2500 rpm with no lights and 12,5V with lights, and all the same @ 5000 rpm.

Measurin the connection between the battery + and rr +: -2,5-3 V, and same on the battery - and rr-.

2,5 to 3,0v (I'm using the europian comma v.s. US decimal point) drops is way to big and is why you have such a low charging voltage.

For purposes of test only run a wire straight from the R/R(+) to the Battery(+) avoiding any other connections.

Your voltages should improve which will show you that there is a poor connection somewhere from R/R to battery all iright near the back of the bike near the battery (no reason to check headlamp connections)

Hi All!

i weird the rr this way:
+: one wire from the battery + to the starter relay, from ther it goes to 15A fuse from ther goes to the rr+ and to the ignition switch

That sounds OK if the connections are clean. If there are voltage drops then it is not clean.

Hi All!

-: to the starter relay moutning bolt (ther connects the w/b wire too),
to battery holder mounting bolt, to the battery -

the b/w wire is tied to the battery holder mounting bolt, and to the starter relay mouning bolt.

I have no idea what to do, i think i do anything what i can but nothing change.

Fix your R/R grounds; see the link in my siggy