I have a 2000 fatboy,it has always spit alittle since new.just did a tune-up and took it for a ride.it wont idle by itself so I checked inside the fuel tank to clean the petcock screen.when I looked inside I can see the primer in the tank coming off.its plugging up the line.wow,is this normal? do I have to strip and clean it out? or is this harley`s fault and I should get a new tank!!!! Help!!!!