Announcement

**Nessism** · 01-03-2010, 03:32 PM

Originally posted by Suzuki_Don View Post

Jim I noticed there was no mention of a connection from the R/R to the engine or a connection from the frame to the engine. Are we relying on the engine and frame being in contact with each other through the engine mounts only. If this is the case does any work need to be done on the GS bikes to ensure there is a good contact there. Not necessary in my case as you know, as I have the motor out of the frame and have ensured clean contacts in this area before putting the motor back in.

On my 1000S there is a large ground cable running from the engine to the battery, grounding though the motor mounts occurs too but it's a redundant path.

**posplayr** · 01-03-2010, 04:41 PM

Originally posted by Nessism View Post

On my 1000S there is a large ground cable running from the engine to the battery, grounding though the motor mounts occurs too but it's a redundant path.

Ed, Don,
Yes there is invariably a current path between the engine and frame due to the engine mounts/bolts. Part of the grounding philosophy is to not rely on those although it does help if any currents that are in the engine cases trying to get back to the R/R(-) do it through the frame.

Of course any current in the engine cases will have a good opportunity to get to the R/R (-) through a daisy chain from:

Neg battery cable case bolt=>battery(-)=> R/R(-)

Interestingly I think the Dyna S uses the engine cases as a ground return for the coils and so that is a major current load that we will never separate from the battery charging return current unless there is a separate ground run from the ignition plate.

Note, whenever trying to decide how to set up the connections, consider the physical path the current needs to take to get from the R/R (+) out to the respective load and back to the R/R(-). The method I have outlined provides a direct single point connections for all possible current trying to get back to the R/R (-).

**posplayr** · 01-03-2010, 06:08 PM

Originally posted by duaneage View Post

Ground the RR close to the frame. Ground everything else to the frame. use the frame as a ground.

Unless your frame is made of plastic or glued together tube use it as the ground reference point, like a billion other vehicles do today.

Duane,
Most US car manufacturers left frame ground returns out of their designs over 2 decades ago.

The point of this thread is to make (as best as practical) the R/R case and it's R/R(-) the single point system ground. The other practical benefit is since all current returns come to this one spot, they are easier to maintain.
Jim

**old school** · 01-07-2010, 12:00 AM

thanks pos perfect timing

**old school** · 01-07-2010, 12:04 AM

by the way electro sports are out of stators at this time and dont exspect any in untill FEB. how ever denniskirk.com has the exact same ones for a couple dollars cheaper

**007jag** · 01-07-2010, 05:03 PM

Charging questions.

Hello,
I've been in process of bringing back to life my gs700es that was down for 15years. I've replaced all the std stuff and upgraded to SS brake lines.

Before the long down time my system blew 2 R/R and when she died 15 years ago I figured it was the R/R again. So I picked up an Electrosport one - now the 3rd to go in. But when fire up time came I found the ignitor had gone out.
That is now replaced and she is running, but I'm concerned about the charging output of the stator?

I have tried to follow the stator checks & honestly I get confused.

So here is my question:
With the bike started and holding rpms at 5K what voltages should my very simple meter read at the battery?

I've been told it should be around 14 volts dc - but I'm only reading around 12.4x to 12.5x volts.

Thanks in advance for any info

.

Jack

**posplayr** · 01-07-2010, 05:40 PM

Originally posted by 007jag View Post

Hello,

I've been told it should be around 14 volts dc - but I'm only reading around 12.4x to 12.5x volts.

Thanks in advance for any info

.

Jack

See the attached

**Redman** · 01-07-2010, 05:43 PM

Pos,

Thanks for doing that.

Your schematic is a very good reference. Really shows everthing need to undersatand all in one diagram, without getting tangled up in the entire schematic. Maybe show the other ground cable to engine (although you are trying to discuss the charging circuit, a lot of the discussion is about the grounding.)
And for a second or two the line in the fuse box up to the aux fuse had me confused where it should cross over the line from the ignition switch. I would suggest that Either put the connection dot everywhere else or make that wire "cross over" with half a circle.

You showed pictures of R/R with additional ground wires on the R/R mounting bolt. I will add add a comment that on the Gs (that I am familiar with) that the R/R is mounted on the bottom of the battery box, so not so accessable. On the Gs can (and I have) add the ground wires on the side of the battery box (more acsessable) were the R/R ground (black) wire is landed on the mounting bolt of the starter solenoid. Will allready be a blk/wht ground wire there from the wiring harness.

Understanding all this is one thing. Describing it is another. You have done well.

<<later note: Pos, I am assuming you made that electrical diagram. But now I see it specifically says "GS1100G", which is not a bike you have. So maybe not.

**posplayr** · 01-07-2010, 06:28 PM