Many Thanks to Matt and Leslie for their advice. Just thought I'd share the progress of changing out the alternators on my Sprint. Had to buy a steering wheel puller for $18. have every thing apart, and waiting on the fresh Alternator, I'll post more photos when it's done.

http://s214.photobucket.com/albums/cc41/...ns/ss-350/


   
   
   
   
   

This post was last modified: 03-01-2010 08:56 PM by Dumaine.

Make sure you test the coil wires for continuity from where they connect to the coils and where they hook up to the regulator. A broken or shorted wire is always a possibility. Otherwise, congrats. Matt

just checked the continuity, seems fine.
I have no choice but to change them now though, I ruined the ones in there now with the puller, while I was trying to get the rotor off.

This post was last modified: 03-01-2010 09:47 PM by Dumaine.

With no wiring troubles, I bet the coils were bad, just as you thought. In that case, they were already bad.

So I replaced the Stator and Alternator coils, with one I got from Moto Italia, seemed like there was voltage going to the regulator.But it still wasnt charging.
So I replaced the resistor in my regulator, it looked burnt.
And I finally saw the Blue light come on with the ignition on...!
thought it was fixed... but it died while I rode around with the lights on, and couldn't electric or even kick start it, had to have friends push start it, and I rode home in the dark....


   
   
   
   

ughhhhhhhhhhhhh thought I had it... then I didn't, then I thought I had it again... then I had to be push started in front of a bunch of Harley riders, and ride home with no lights... ughhh

This post was last modified: 03-06-2010 10:08 PM by Dumaine.

That resistor looks shot. Hmmm. Perhaps someone more familiar with 73-74 can chime in. Otherwise Ron (Lancaster) will help talk you through what you should check.

Ron (Lancaster) told me to buy a new regulator from Moto Italia. There is only 1 resistor, and 2 capacitors in these Regulators, doesn't seem like fixing them would be to hard.

This post was last modified: 03-06-2010 10:37 PM by Dumaine.

Ron is very sharp and a super nice guy. He lives and breathes Sprint. If he told you that, that is what I'd do. They make a better one (reg) that you will have to rewire. No biggy and lots tougher than the OEM one.

Puller bolt through a coil? Been there,done that. Put Moto Italia replacement reg on;cured my charging problem. Easy wiring mod. Good luck.

If my lying eyes are correct, that is a 50 ohm resistor. Simply connect an ohm meter or a multi meter set to the ohms position and read 50 ohms. If no connection or either grossly more that or less than 50 ohms replace. It looks to be a 50 ohm wire wound reisitor with a ceramic case. The capacitaor is more complicated to check, The only true test is to charge it and check how long it takes to bled it down with a know resistance. Easier for the layman to just change. In the Capacitor you must match type, polarity (if polarised noted by +or- marks on the body of the cap) and capacitance and at least the same voltage rating but more is ok but not way more on a 12 system 25 v would be ok. The diodes conduct in one way but block in the other direction or in diode check .46 volt fwd. I hope I have helped you with this.
Charles