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Rich,

That is some outstanding input, thank you!  I am an electrical noob, so when i finish work I will read your conclusions and suggestions very closely.

Could you let me know what you mean by "pigtail?"

Also, when you wrote, "Make sure the kill is set to run, just remove the plug to crank.," does crank mean kick start? Same thing? And does "kill set to run" mean don't have the kill switch on?  have it as i would have it when i normally start my scooter?

Also, by "remove spark," do you mean remove the spark plug?  if so, is there a special tool I need? the plug, located up fronmt near the battery, has a large bolt securing it. I have never before removed it, so I wonder whether a special tool is needed, or whether a wrench will do.

Could you also let me know what you mean by "set your meter way low if it's not auto ranging?"  I have an Equus (Innova) 3320 voltmeter, with digital display...
Link to multimeter

Finally, could you elaborate for me, in dummy terms, what conclusions I would draw from each of your tests if, say, the voltage is lower than what you say it should be?

For example, does a low voltage on the first test suggest bad wires? Bad wire connection? Bad stator?  Same with the AC power and "trigger" tests -- what can I conclude iof the reading falls short?

I will faithfully follow your instructions -- thanks again! -- and report back.  I will first trickle charge my battery with the schumacher charger/maintainer i bought last night.  I had a low battery reading of 12.15, so that appears to be at least part of my problem... 

Thanks for chiming in, Rich!

Actually, the CDI is in fact toward the front (TGB scoots definitely like to go their own way, design-wise, I have found).  I have taken the CDI off, had it replaced before (the ignition start was failing before and now it is not).

Anyhow, the CDI is snug under the cross bar of the frame that divides the main motor area and the area where the battery is.  i can post pics later after work.  The CDI has 6 - 8 prongs in it, and looks just like this:

www.mopedarmy.com/mediawiki/images/4/4a/6pinout.jpg

I had another look-see after i came back from the game last night (Go orioles).  The thing perched at the front of the gas tank all by its lonesome, did not have all those plugs/prongs on it. It had a male and female connection.  One side of that connection has four prominent metal plugs JUST LIKE THIS standard looking R/R does:

www.scooterpart.net/productimages/052508/GY6_Rectifier_relay.jpg

In other words, like the two prongs on a standard home appliance plug, but four of them.

Key difference of course, as you can see from my pic, is that the gizmo does not have that waffle iron grill exterior, and instead seems covered in thick rubber which I cannot peeel back to look inside.  So maybe TGB likes to use R/R's that are just plain different!!  

Rich, I will follow that wiring diagram to see where it leads. the TGB folks nicely bundled all wires with electrical tape, so to really know the score I'll have to unwrap these neat bundles to see what goes where.

T.

Thanks alleyoop!

I have seen plenty of diagrams online now and have a better sense of how wires lead from the stator to the CDI, and from the stator to the R/R, and also how wires will go from the R/R to the battery once AC has been converted to DC, and once the voltage has been "regulated" to somewhere around 14 or more maximum output. 

I will follow the wires from the thing I think is the R/R, and that red one especially.

Final question: Some folks say that you should not proceed with voltage tests of stator, and the R/R UNLESS the battery is at full charge.  My battery yields only a 12.15 before I turn it on.  A video I saw online suggested that if there is a low reading like this, it is not good to go ahead with the multimeter tests because the readings may be unpredictable. In that video, the guy charged the battery with a trickle charger, which brought it up to 12.8 WITH THE SCOOTER OFF.  Then he went ahead with testing the charging system etc.

You think I should do that first?  I can get one at Wal-Mart in Baltimore, I'm pretty sure.

Thanks bud.

Tx.

Could you please refer to my photo and indicate which is the "connector" you mention?

Should I ignore the two white connectors at the top of the photo? (I ask because thry ALSO emanate from the stator)

Final question: assuming the blue-white plug is the one I want (see above), how do I know which of the two slots inside of it I should put the red multimeter probe into, and which slot I should put the black multimeter probe into?

I think the black one is for "ground" or something.

More pics for you:

Here is the bundle of wires coming out of the stator:



Then this doohickey perched on front of gas tank with several wires going into (and out of?) it.

Will do!

Sry one more thing: can one of you kind souls let me know which of these is likely my stator connection ?

Taken from front of scooter looking backward


Tx!!