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Didnt have much time this evening to tinker, but I did swap plug leads and was able to idle for a bit after kicking. No pops and was able to idle with choke off. Died after a few seconds, but making progress.

Popped after kick, didn't run. Didn't pop on subsequent kicks. Tried starter for hell of it and popped as well with starter - didn't start, just pop. Might be flooded? Stepping away from it this evening, will diagnose tomorrow.

Everything assembled and points and timing set - just static method. Went to kick and had a tremendous pop at the exhaust.

Thanks fellas. Had a doofus moment. Switch was off.

Not completely slack - just not exactly tensioned when fully advanced. Having another issue now - reset the points, however I'm not not getting any power at points. Hmmm..

Thanks Jim. Lubricated advance rod, cleaned and lubricated weight poles, lubed cam. Moves much more freely. Springs still not pulling the weights back - although overall system feels much smoother to rotate.

Still staying in the full advance position and not retracting. Should the springs be have enough tension to keep the advancer 'closed'?

Ah gotcha - I see what you mean. I'm lubricating the advance rod right now. Bone dry and did not rotate very freely. Will check springs once assembled. Also cleaning posts as well.

Yes. Unless I manually press them beck together - springs aren't pulling them closed.

Servicing the advance rod and noticed my springs don't retract (or at least I think they should?) - should they be keeping tension on the brass colored bits of the advance unit? In this picture, the brass bits are open with no tension to pull them back.

Thank you 5twins - I appreciate your help!

5twins, I'm going to service my advance rod this evening. Do you happen to have pictures regarding lubricating the rod? They aren't showing anymore on this thread - it will probably help my newbie eyes know what to look for.

Thanks 5twins. I did replace points. I think another issue I may have caused is not setting the timing appropriately on the compression stroke. I was just reading a timing guide from xs650central and it referenced setting when right cylinder is on compression - I believe I just rotated to match...

Thanks Jim, just making sure I'm not overlooking the obvious. Followed the manual. I tried the lead swaps with the coils and same one got hot. Almost too hot to the touch. This evening, bike only ran shortly then died. Swapped in fresh plugs. Tested the spark and they were getting a spark...

I mean I set them at their widest point - right? For instance, at their widest point they should be set to spec. I mean I set them at the lowest range of the spec (.012" off hand - but I believe the range is up to .016", if I remember correctly.) I'll locate a dwell to dial it in better. I do...

Intake rubbers are brand new along with gaskets. Do you think vacuum line should be something specific? I thought about this today - I have a standard clear gas line for a vacuum hose. Might need something heavier - but just grasping at straws.

Thanks 5twins. For setting the points I did do them a hair smaller than spec, and they are new points. I'll check out finding a dwell meter somewhere. For timing, I rigged a 12v led with a positive going to the point and the negative to ground. Then set timing accordingly to the light firing...

Thanks Jim - I'll give it a try tomorrow. No dwell meter (I don't think my multimeter has it - but not sure off hand).

Running. Cam tension set, points are new and gapped, and timing set using a light. Carbs are cleaned and rebuilt: jetted pilots a size up, new gaskets, floats set to 25mm, new diaphragm. Carbs are also synced using vacuum gauge (although I will be using a manometer this week to get them more...

Thanks Jet - I didn't think there was a reason why they would go bad - but did notice left one getting pretty hot. Will browse forum about diagnosing.