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So I put a out 1/2 to a quarter cup of 50:1 premixed gas in, and a gallon of 87 on top of that. I've used premixed on engines that have sat before just as a precaution thought it might help here. Started choke down, let it run a minute then choke lever up and started recording. The metallic...

Should be able to get some more play time with it this Friday, I'll link another vid. The springs in the advance looked good, and snapped back ok. I want to dump the fuel and get an oil change in before I open it up too much. Some of the gas lines where they spliced in gascocks are splitting...

Now to heat shrink the connectors, ziptie the wiring, get new carb filter cans, and tighten everything from rattling. Any well known gremlins I should run down before I give her back?

It's AAALLLLIIIIIVVVVVVVEEEEE!! My guess after all this is one bad coil, 7ohms and very hot, misadjusted point and bad plugs. here she is

I adjusted on side of the points that seemed like it never opened and cleaned them again. Not sure if that did it, but now I have intermittent crap orange spark. Gonna go grab some plugs. I'll update!

So the coils and condenser have been replaced and still no spark. Points are clean and opening and closing. I have voltage at the points. No spark at either plug or to ground from the wire. Can't think of what else I'm missing.

Thank you, supposedly the guy that he bought it off of had it run in the tail in the last season. The carburetors are an issue that I'm dreading getting into later on here but with the custom job like this from somebody's garage, you know we're going to be tearing them apart.

I just ordered the coils and condenser, should be here by the end of the week. If that was all she needed I'll be a happy camper. I saw different oval style filters on mikesxs for the '75. I'll get some clearance measurements and see if they will fit under there. If not I'll have to get...

Got it. I might as well just replace both coils from the start. Throw the condenser in for shits and giggles. My buddies been off the road for 7 years I'm trying to help him revive someones unfinished project bike. Thank you again, I'll update this once the new coils are on.

Ok, it's too dark out now, I'll check the other coil tomorrow. So we know we have 12vdc and 0 vdc open close on the points, so the should be fine. And that coil should be good, or is the resistance too high? I'll test the other and if it's within range where would you go next? And thank you...

One coil with the orange disconnected.

Like this?

So on the backside of the points arm opposite the touch pads I have 12.4 vdc to ground on one, and fluctuating voltage on the other point arm. It's all over the place. And this has a new battery. Missed these before.

I have 12vdc to ground on brown at each coil. At the points I have tested 1,2,3,4 to a bare metal ground and have 0vdc.

So I'm working on my buddies '75 xs650. He has no spark, yep I know another one. So I sanded the points clean with 1200 grit. Pulled the plugs and no spark. Removed the plugs from the boot and put in a screwdriver, no arc to jugs. Voltage on battery with charger is 12.5. tested kill switch it...