Magneto fine, CDI apparently fine, sparkplug fine, NO SPARK! need help!

Hi! I'm new here. . .

So I just bought my bike and it's been working fine, well, kinda for a week.
Anyways my engine just stopped one day, and I noticed I wasn't getting a spark. So here goes.

My magneto seems to be working fine, I get around 30+ AC volts between the blue and black wires,
and the engine is properly grounded. But when I run all the ohm checks I only get 500 ohms between the black and blue wires
(red lead from meter on black and black lead from meter on blue) when I should 130k - 150k. The magneto is also soaked in oil, yet it still produces the 30+ vAC.

The kill switch is also fine. All the connecting wires are fine and there is no bare contacts or shorts.

The CDI shocks me quite a bit when I go fast, but when I put a spark plug on it, nothing happens, and even when I hold the spark plug I don't get shocked. If I take the spark plug out and touch the contact inside the spark plug cap I get shocked.

But there's no spark! Why!? (btw, I've done this test with 2 different spark plugs).

So it's not the spark plug because I tried several, it's not the magneto because it outputting 30+ vAC, and all the wiring is properly insulated, kill switch works, CDI shocks me, but no spark! Is this a grounding issue? Please help!

Finally someone who knows what they are talking about! I asked on another forum and the guy told me if the magneto is producing 30 volts AC then it's fine. Okaydokey I will get another one. How am I supposed to seal the case, like cover the crack with JBweld or something?

Is there any hope for my magneto, maybe some vigorous cleaning? It's semi-working

I've always wondered about the spark plug, because I know that the engine frame is the ground, but everybody tells you to take the plug out and hold it! But when you hold it you do get a small spark, so I guess your body must be acting as a ground when you are touching the metal on your bike?

Thanks Tom!