Hi, I´ve just acquired an 1997 yamahaxv125 virago after recently taken up biking. The bike has only done 550 miles but hasn´t turned over in atleast 2 years. on draining the tank, clearing the pipes renewing the battery and servicing the bike it still will not start. the plugs are firing reasonably well but it doesn´t seem to be getting fuel into the carb. Does anyone have any suggestions? does it have to have the fuel lines or carb bled? is there a fuel pump?