Batteryless xs650 capacitor fell off during ride

im not sure if i have a rectifier/ regulator combo honestly. i bought this bike with a bunch of parts as an uncompleted project and the rectifier was already on the bike.
ill take a pic and post it, maybe you guys will be able to tell me .
 
Your 4th test certainly shows a failure:

red probe to black wire black probe to yellows ( on diode/ continuity)
1/OL
2/OL
3/OL

It appears that the red wire is indeed connected to the internals.

The black wire may have a break or disconnect somewhere. It's rather untypical to lose all 3 diodes at once. Just something to check...
if there is a break in the wire it has to be inside the rectifier because theres only about 4 inches of wire sticking out from the rectifer. im not sure how i could have tested it wrong. i checked it multiple times. did every ver betum per jims video. but i am new to this so anything is possible .
 
20190803_204556.jpg
20190803_204556.jpg
 
Well, I'm not a PMA expert... but the extra green wire does suggest it's a combined unit.
 
I'm not a PMA guy at all........Hopefully some of the PMA guys might chime in

I do know they are a Combined Reg/rect units.......Some have 6 wires and some 5........

A link explaining why a 6 wire and what to do with the 6th wire..........i couldn't say what wire goes where, meaning on the red/black/green........one goes to negative battery and the other 2 can be tied together to the positive.......Should get confirmation on this info
http://xs650temp.proboards.com/thread/14040/recs-permanent-magnet-alternator-swaps

A link to mikesXS XScharge Reg/Rect for PMA........5 wires
https://www.mikesxs.net/yamaha-xs650-xscharge-pma-rectifier-voltage-regulator-replacement.html

Here is a guys wiring diagram for PMA from Chopcult.....5 wires
http://www.chopcult.com/forum/showthread.php?t=5336

From Hughs handbuilt..........test your PMA and have a look at "MOSFET regulators and why".........probably worth a bookmark
https://www.hughshandbuilt.com/blog/
 
Hey thanks guys! I'll definetly look into that! I know that when I had my bike running a few weeks ago I was left with one extra wire and that was the green one. And not knowing what to do I just grounded it and it worked great . But hopefully someone can declare whether or not my rectifier/regulator is bad or good. Because I'd love to get this thing down the road again
 
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Hey guys. I just put my new rectifier on the bike and I'm still getting no spark.
New rectifier, new coil, new capacitor. Checked all wires , good.
Spark plug wires good. Wires coming from pamco electronic advanced timing, good.

I dont know what to do.
For the heck of it I tried checking continuity between resistors on the green pamco board and some of them I'm getting continuity and some I'm not.
Is this normal?
How do I check the board?
 
Ok so it ended up being the pamco. I was getting 12v in through the red wire but only 5.8v going out of the green wire to the coil. Bought a new one and bike started up 3rd kick.
The thing is that I noticed at idle the left exhsust pipe was running at normal temperature but the right pipe was pushing cold air out?
When I gave it throttle the right pipe was back fire a bunch. I let it idle till the motor was warm and the carbs ran out of gas, thus killing the motor. And now it won't start again?
I'm getting good spark in both plugs.
 
This is a long thread. Apologies. I didn't read it all. Still using a capacitor? Not a fan. Especially if your bike is some kinda custom and has excessive vibration. I don't give a shit what the sellers say about rubber mounting or the spring mount for the capacitor. They will fail especially that black one the Bros and Mike sells. Freaking sensitive p.o.s. Fart vibration will cause it yo fail. Haha! More recently I have found the antigravity battery with the right shunt style reg/rec combo is rugged and reliable. The way to go. Expensive, yes but it's likely you'll keep buying caps.

Now on your more recent post. If your getting spark, then it'd be a fuel issue. Be careful testing for spark with a Pamco. I clip a jumper cable to the plug and ground the other end WELL! You will pop that lil transistor. I like to use a timing light to check for spark and it's safe. Do you know how to sync carbs? What kind of exhaust? What kind of air filters. Take a video. Post it here.
 
This is a long thread. Apologies. I didn't read it all. Still using a capacitor? Not a fan. Especially if your bike is some kinda custom and has excessive vibration. I don't give a shit what the sellers say about rubber mounting or the spring mount for the capacitor. They will fail especially that black one the Bros and Mike sells. Freaking sensitive p.o.s. Fart vibration will cause it yo fail. Haha! More recently I have found the antigravity battery with the right shunt style reg/rec combo is rugged and reliable. The way to go. Expensive, yes but it's likely you'll keep buying caps.

Now on your more recent post. If your getting spark, then it'd be a fuel issue. Be careful testing for spark with a Pamco. I clip a jumper cable to the plug and ground the other end WELL! You will pop that lil transistor. I like to use a timing light to check for spark and it's safe. Do you know how to sync carbs? What kind of exhaust? What kind of air filters. Take a video. Post it here.
No need to read much of the beginning part of the thread, the spark issue has been resolved.
I didn't not know that about capacitors! And my bike has TONS of vibration, thanks for the tip. I'm running the black one from tc bros, do you have a recommendation? Anti gravity battery and new reg?
Air filters are xs pod filters, exhaust is chopped and baffles removed.
I havnt looked into syncing them yet. It was running fine before my cap came off. Now I'm getting all these weird issues
 
Air filters are xs pod filters, exhaust is chopped and baffles removed.
I havnt looked into syncing them yet. It was running fine before my cap came off. Now I'm getting all these weird issues
Stock CV carbs? I assume you have MikesXS K&N knockoffs. Oval & tapered with "XS something" embossed on the chrome end cap? These filters and a "chopped" exhaust is not a good setup for a good running XS. As a minimum, get some UNI FOAM pod filters instead. And a proper exhaust won't hurt either.
 
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