dont no if u like my idea but if the pump is very expensive u can put a electric fuel pump on it i think there only wort $50.00 and the good thing is u dont have to prime the bulb each time to start soon as u turn on the ignition the carbs r full we call them a solid state fuel pump here is a pic
http://cgi.ebay.com.au/Electric-Fuel...item1e61c7b7ae