Cannot get fuel into carbs on this bike - was getting harder and harder to start. Took off original air cleaner box to install separate chrome filters. While filters off tried spraying bit off gas into each air horn but no start. Has automatic fuel **** where fuel line comes in from tank. Think problem lies where fuel hose enters carbs at carb #2 - Tried blowing and sucking on hose but seems blocked and not letting fuel into bowl when cranking engine. Anyone have similar issues??