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I will try and post pics as soon as I can.

That's pretty much the plan Quocle. How well does a crank survive an oil related seizure usually?

So the oil pump is definitely not pumping. Which is awesome! That doesn't explain why it died/seized the second time with a tank full of pre-mix. Unless pre-mix effects jetting that much.

Plugs didn't look oil fouled. Left was a bit wet, but it started up and idled.

I still have more investigating to do, but what should I do with an engine that seized? Will it kill the bottom end? Did it already? I don't hear any piston slap.

@barrie. I modified my avatar

@organicjedi. I did not change the plugs I was going to do that but never got around to it.
I thought that R5s didn't need an additional ballast resistor...?

@socal250. I can pull the head pipes out again. I just did a leak test a couple weeks ago when I was first having running issues.
Timing was checked at the same time.

I will check plugs soon. I think I have to not look at her for a while.

Thanks for the help guys.

So this is wandering off topic. But it went from minor to major it appears.

Went for a ride yesterday and after priming my oil pump to fill that one inch air gap on the oil lines off I went. Running as good as she ever has then after about four miles I tried to whack open the throttle in a high gear. It bogs out like it's not getting gas, I look at my fuel lines everything looks fine. Now I'm bee lining home at a low throttle and things get worse and she dies. My oil lines are halfway empty.... plenty of oil in the tank. I rebuilt this pump a little over a year ago and it has at least 1500 miles on it since being rebuilt. Phone my wife and she delivers a bottle of oil. I drain the float bowls and mix my tank at 32:1 or better. On with the fuel tap and kick, kick, kick, nothing. Keep in mind the bike has sat for at least twenty minutes at this point and was only warm.
It finally starts and runs good for a few miles then dies right before my drive way. Now it sits and I'm a bit gutted.
When it died the first time I kicked it a couple times and it definitely didn't feel tight. FWIW.
Did she seize? Twice? Why would this happen after new coils?

I've only used that video a few dozen times.

I didn't catch your post M, but I had the same idea anyway.

She runs a bit better now. Just the same as it did last summer. Thanks for verifying my hunch. 

The only mod I made over the winter was adding clear oil injector lines. They have been solid every time I looked at em. Except today, the right side is getting an air gap of about an inch long. I'm going to have to see about the check valve in the pump....

If the mailman beats the thunderstorm by enough time I might be able to report how the new coils perform shortly.

As far as condensers go I replaced those last winter, although this winter I had a pretty (for me) in depth overhaul on an old Guzzi and wouldn't you know two bad brand new condensers... Put the 40+ year old condensers on and she's never missed a beat. Your mind goes to some dark places when you spend that much time bringing an old machine back to life and after a few hundred miles it starts running like crap.

So to recap my issue, a loss of some power and the points look like they run clean (no sparking/arcing). They are gapped and timing was checked dynamically.

Either way new coils on the way from Economy Cycle.

 

Thanks for the replies.

Points and condensers are new last year. The coils are what look like silver Emgos from previous owner. I'll put my order in with economy.

Seems the old girl (71' R5) is losing power. Last summer she ran better on 145 mains, I tried 150s and it ran the same. I went through the ignition, checked points, timing etc.

Two things I've noticed. When shooting the right cylinder with a timing gun it seems like it wasn't firing as consistently as the left...? Not sure if that's possible but I tried again when the bike is cold and it seemed better. As I type this I'm remembering that the points were absolutely not arcing at all, which I'm not sure I've ever seen perfect points like that. Not sure what that says.
The other thing is with fresh plugs it runs great.

So I'm looking at the coils, particularly the right side. Do coils get weak with age when hot? Or are they a worky, no worky type deal?

Thanks for any help

Didn't know the story. Glad you're able to do this!

I think we have a winner! That is awesome!

Anybody going? It's a ways out I know. I've never been, planning on going this year.