I've been having trouble lately with my garelli sport performing very poorly. Sometimes it runs fine, other times it'll stall and sputter, and refuse to rev up.
I already checked the fuel line - fuel flows fine. I opened up the carb, no dirt in the bowl, float needle isn't stuck or sticking, and the main jet is not clogged. Since the problem come and goes, I'm pretty sure it's not a clogged exhaust (and I had it off less than 100 miles ago, and cleaned it, so there's no way it could already be clogged).
Thanks in advance.