Oil feed lines

Hi sparkplug,
I am not quite sure what you mean by the ENGINE GOT STUCK but if it actually seized for a brief period it's not a healthy sign, you say you are going to run it again and see what happens, if it happens again you may have to look deeper into the bowels of the engine, keep us informed.
Good luck
Mike.

Sparkplug

The motor siezed and you really should pull the head to see wha' happen?
Could be the carbs too lean or timing too advanced but most likely not enough end gap on the new rings. In any case you should check to see if there's any damage.
Scooter

Many thanks buddies! I'll take a look into the barrells and see what has happened. I'll let you know the results...

misfiring

If the engine ran fine before and nothing changed in the carbs, it's not likely you need to adjust anything. However something might have come loose in the carbs, such as the main jet holder or a needle clip. Check in there.

Midrange misfiring can be ignition trouble. The Boyer is infamous for broken low tension leads on reluctor board (replaces the points). These are not evident when looking at them. -Vibration-

By the way, be carely about the stainless steel lines under the gas tank. This can act like a hack saw due to engine -vibration- and cut throught the tank. Especially dangerous with fiberglass tanks. I put some plastic wiring insultation wrap around mine just in case.