two stroke

So my neighbor had an old mini bike his son used to ride around on in the 90s, till the engine blew, I got it for free. I was planning on getting a 212 and being done, but in my usual online hunt, I found a 98 cr500 engine for 150$, ad says it runs, I can only imagine how impractically fun would...

I saw this on craigslist. The seller sez it's a 1969 Kawasaki Coyote two-stroke. But I have looked at pics of the real thing and I think he's full of Hoo-Ha. Can anyone tell me what this might be? Thanks for any info.

I have a NOS tecumseh 2 stroke, and I just got done rebuilding and cleaning it. Now, I can't get the stator in the correct position. The coil rubs on the magnets and I think the timing is off. I have tried to set the stator position for a half hour and can't seem to get it. Please help!!!

Does anyone have any experience with these 49cc two stroke engines? I was thinking of building a micro-bike,similar to a Taco Frijole,with this engine and pocket bike wheels and tires. How reliable are the ones seen on Ebay? Thanks for any info-pro or con.