MOPED ARMY

Bright blue snappy spark all the time - great - so is fuel getting there?

Give the engine a leakdown to check for vacuum leaks.

Do you have a method for checking vacuum leaks when the engine isn't running? I had checked everything with starter spray when it was still running, but that's not really going to work now.

My moped was really finicky with what jets it liked. Even like 1 or 2 sizes off and it wouldn’t start. Maybe get a pack of a few sizes up and down and try that. If not, at least the jets are cheap.

If you pull the plug and drizzle a little pre-mix in there, put the plug back and kick it over, I think it should fire if the timing is anywhere near right...

Oh! Can't believe I forgot to mention this in my response! So I decided to flush out all the gas from the tank and I couldn't really see what it looked like once it was in the can, but I flushed the tank with a quarter gallon of acetone and collect it in a jar and it came out super milky and yellow. Definitely a bad sign.

Shake it like a salt shaker

Adequate compression first , with no air leaks .

Then correct timing , with sufficient spark under compression .

Correct air/fuel mixture .

In that order . You should have a runner .

A big blue spark is good . But , it should fire just before TDC .

Some plugs will spark fine in open air and get 'blown out' , so to speak , when under compression .

An inline spark tester only tells you that there's enough 'juice' coming through to create a spark . It does not tell you that the spark plug is good or not .

The tester will flash if there is a gap or if the gap has been completely closed , provided there's enough juice .

^yeah to cheetahs method of timing it again. spray premix in the plug hole instead of starter fluid its a 2 stroke man.

points r adjustable, barely loosen the one flathead and spin the base with a flathead, one way or the other to change gap, to open a tad earlier you want the point gap a tad bigger.

starter fluid washes away oil, premix in a bottle. I admit it, sometimes I just guess with the flywheel, a little this way or that and see how she runs.

Good it running .

Looks like you might want to put the flywheel lock nut in place . ;)

yeah try another condenser.

Bosch condenser . Late 60s VW .

Excellent quality and plenty of pigtail .

I ordered a few external condensers, but I found a long lost one in my box of parts and tried installing it. I thought I had it set up right, but maybe I'm a bit off since I'm also running an external coil, when I put it all back together I lost spark completely and when I tried going back to the original internal condenser I still don't have spark. 1 step forward, two steps back.

Here's how I have my wiring set up with an external condenser, pretty much the same setup with an internal condenser too.

Internal coil going to condenser, external coil going to condenser, points going to condenser, pretty much what Myron's guide shows except with an external condenser.

Not sure why I would lose spark even after going back to an internal condenser.

I'm going to keep updating this thread for future civilizations to find.

And they're going to find out that I'm kinda retarded. I got my new condensers today and it worked great, no more arcing between the points. I put everything back together but I had no power when with any amount of throttle and the clutch wasn't moving at all. I took the clutch apart and realized it wasn't tightened down all the way.

I had taken the spark plug out and then put it back in and started it up but it had an insane air leak all of a sudden and I could see smoke coming out of the head right by the spark plug so I took the plug out but noticed it was super hard to get out, and then metal shavings started coming out with it, and then big pieces of the threading were coming out with it and by the time it was all the way out I had a nice little pile of aluminum shavings in my hand.

I knew it was completely stripped but I took the head off and tried threading the plug back in and it just doesn't grab anymore, spins freely and doesn't make a seal. Heads trash now.

Gonna buy a new head on treats, maybe even get myself a SHA 16.16 as a treat for my suffering and stupidity.