MOPED ARMY

Sounds like a bad connection or ground somewhere thats reacting to vibration. Most likely somewhere or something you have not touched yet with all the replacements you have made. Might have a look at kill switch for instance.

So I took a look and found one of the screws to the killswitch not tightened down on the wire. I was able to pull the wire completely free.

What do you think? Possible culprit? Gonna take it apart and try to get her right.

Nice. Yeah I think that’s the next step for me too. I’ve used the wire nuts on another bike that hasn’t had any issues in 3 years but this bike is enough of a headache that using a strip makes sense and it’s easy.

So I tried my best to get in that space and screw the wire back in. That didn’t seem to do the trick so I’m gonna cut that switch off and replace it with another one.

I’ve considered both these things. The issue just suddenly started out of the blue while out on a ride after about a half season of solid rippage. so I’d be interested to know how due flow issues might change so suddenly. I actually just checked to see if the fuel filter was draining too quickly and with just a quick rip of the throttle, the cutting out happens. Not even giving fuel time to deplete significantly.

But when you’re out of options, it never hurts to try different things. I’ll try the gas cap truck then after that I’ll completely disassemble and reassemble the carb in case there’s a blockage.

Also, note in the video that the headlights don’t flicker when the cutting out begins. Would they cut out if it were an electrical issue or would the fact that lights are a different circuit make it not matter?

And fuel flow issues wouldn’t explain the odd behavior of my fire mark when using a timing light, would it?

Check your needle and jet. Clean them all out. If you block some of the intake will it rev. up. normally.

My 78 Puch stopped running right as soon as I put a new air cleaner on. Am running a 56 Jet. It runs great with the old clogged up air cleaner. Sputters out with the new free breathing filter. So I'm pretty sure I need to upjet to get things back in balance. These are both stock air cleaners, so I was quite surprised.

sounds like an air leak.

If you have carb clean let the bike run and spray carb cleaner on your gaskets and seals.

If the motor cuts out...wala you found the leak

LOL, those statements can bite you in the hind end. Worth checking at least.

Whenever I'm sure I didn't do something, it usually when I did something. ;-)

Hope you can get to the bottom of it. Did you check the carb and clean it. It really sounds like you are not getting enough fuel. If it ran fine previously, I'm betting there is some crud blocking fuel flow in the carb.(edited)

Yeah, it’s not the killswitch. Took it apart to the same symptoms. I’m considering changing the entire stator. Re wiring after that!

I just don’t understand.

Can a voltage regulator go bad? It’s about the only electrical part I haven’t replaced.

have you tried to run fuel from another container with no filter?

It’s that Treats CDI. I actually signed on just to tell you that.

Powers in the points

https://www.mopedarmy.com/forums/read.php?6,4171132,4171638,flat=1#msg-4171638

Here's a thread i made a while back. It's literally the exact same problem. It's a different stator, and bike all together but the operation conditions are the same. but that treats CDI is notoriously bad.

Check the exciter coil for shorts the wires on them are pretty thin and tend to get fucked. You will probably need to rewrap or just replace it.

actually, you replied to that thread at some point.(edited)

Yeah, I don’t know man. It’s a head scratcher for sure. Like, it was running fine one second and the very next, BOOM!

It literally happened as I was riding it! Was zipping a long and then suddenly it started cutting out. Same symptoms no matter what I have replaced or rebuilt.

The only thing I haven’t done is played with the timing. But I don’t think at any point of bad timing is a symptom cutting out? Maybe, idk.