The ad reads topend, reeds,carbs,and pipes. I would expect cylinder head with domes, used 2 used pistons and intakes. No way in hell cases or crank would be incl at that price. Also remember the cylinder needs resleeve as stated.
Do you do repairs? I have an hs hood that has a crack up in the right front side. Would be interested in fixing that and adding some flames or something to cover it up.
Only part missed was install pressure plate correctly. The inner notches are cut to clear the inner hub. You have a 50/50 chance of getting it wrong if you dont pay attention.
1/8 would be.125" seems really loose. You positive your doing it right? There was a good write up on checking squish. Recomend you get some digital calipers also. How have you been setting you lectron needles? Might as well use a fucking ruler if you were using that caliper.
Unless im mistaken excessive advance usually causes kickback. everyone recomended more timing due to how the plugs look. Tighter domes would move the mark also. We assume your domes are right and rec more timing. I have a hunch its weak spark from wiring issue when the plate is turned just right. That or your exh duration is really high
Anyone think dome or squish issue is why it needs more timing to get the burn correct? My first thought was wiring shorting out when its in that position but you swear it has spark. You could buy a spark tester at the store and see how strong your spark is at 5 vs 6 degrees. Sounds crazy but at least then you could eliminate ign problem.
If you would man up and hang all that weight out the back i bet you would hook for sure. rider weight placement in your case makes a big difference. Or learn the lockup so the clutch slips out of the hole and the tires dont spin out. Then when your moving the weights let the power come in. Realisticly you need to master the first part