I just have a quick general question regarding open crank engines. As some will have seen i've completed my Hoglet V Twin and usually after running i get fuel/oil (black mess) on the flywheel which gets flung everywhere. It's not excessive but I do have to clean the flywheel after it's ran. I've adjusted the fuel so it's not running rich, but is this perhaps a symptom of loose O rings? Or is it perfectly normal? I can't imagine the O rings being too loose otherwise it wouldn't fire. If it's normal then no worries!