hey everyone, i fixed my bike, running normal fuel,still got that leak in the carby though, but the bike isnt starting!, i checked if i had a spark and i had a bright one but it would only happen every like 6 strokes of the piston, so i think i might need to get a new spark plug, this spark plug was just sitting in this box for like a few weeks, does that matter? its an ngk b6hs, should i try the b5hs? thanks