Guys, I am leaning on swapping out the HHB CDI R/R for a SH version. Does anyone have a good recommended source for finding the right one? Here is what I found, wondering if this is the right option...
http://www.roadstercycle.com/
I can't help you with finding the right one.
George......................can I give a little advice? I see you are re-building an XS650, and that is a good thing to do. However, you seem to be spending a lot of money on electrical parts.............HHB parts (expensive but low quality)...............Shindengen( very expensive but high quality). I sense that you don't have much experience with the XS650, and perhaps your electrical knowledge is a little weak.
With these old bikes, its much better to go slow when starting out, as it takes a while to find the right path. I see that you removed the stock alternator and charging system......................do you even know if it was working or not? The stock alternator is a high quality Japanese component. NOS automotive regulators can be bought for $35, and new 3 phase rectifiers for about $5.00.
You seem to be following the crowd down the PMA path. I think PMAs are the wrong way to go with these bikes. The uncontrolled PMA always generates 200 watts when going down the road at 4000 rpm, while most bikes now are only consuming 90 to 115 watts. The unused wattage is just lost heat energy to the atmosphere. They are very inefficient and components tend to run very hot. By contrast, my bike only consumes 113 watts, and guess what, my stock 200 watt alternator adjusts to only produce the required 113 watts. My stock alternator is efficient and there is no additional wasted heat.
That SH847 ......................wow, $200 and rated for 50 amps. That is overkill. The alternators for these bikes only put out about 16 amps maximum. If you must go with a PMA, try to buy something down around 25 or 30 amps rating.
I know most new lads to the site want to discard the stock alternator, as they feel it must be inferior somehow. Of course the aftermarket sellers are glad to tell you, that an alternator from 1970's or 1980's is just so old it couldn't possibly work very well. That's marketing hype and makes them a lot of money.
Just my thoughts.................regardless of what route you follow, I hope you enjoy your project.