I bought a wr426 that I'd been having trouble starting so I did the usual,drained the bowl, fresh fuel, checked the air filter and a fresh plug. Anyway, the the screw to empty the bowl seems to not be able to be tightened enough to close again. total PITA! so, for the time being I popped a clamp on that overflow hose. now the other hoses start pissing fuel! Is there something I'm missing here? usually I'd be thinking stuck float but prior to draining the thing it was not leaking. any suggestions prior to having to rip the thing apart are welcome. particularly issues specific to this carb.