Been playing with a unusual Cyuna motor which i got running to sell. Motor was one of 3 left over heading to the scrap after my mate passed away. Was partly dismantled with rusty rings & seized piston etc. Just cleaned it up & assemble then damn it no spark but as luck would have it i found earthing the yellow makes it run. Welded a flange on & bolted my old bucket racing 100/125 pipe on to sort of quieten it down--not much though. 215cc googling specs. Tons of Comp to pull over. Runs perfect.
youtube.com/shorts/gOq_e7Oo83c