ok where exactly is the pilot jet located in the OLD Keihin PD carbs ? XR200 1980 so i can check/clean mine.. because i am sure its gotta be plugged at least partially.. especially due to having sat parked for so many years untouched.... and when i tried to fire it up a month ago or so, it was not getting fuel at all from upandout of the bowl through the main jet whatever it is called where the slide needle goes in.. even though the bowl had plenty of fuel.. from the research i have done so far it seems that these old keihin carbs were a real PITA to fire up due to poor slow jet/idle design ? and therefore is why many ppl opt to junk them in favor of later mikunis such as the mikuni tm series ? right ? no ? please elaborate thanks!