your mains are obstructed. pull your carbs off and get a pot of lemon jiuce and water and boil them works great and make sure you take off all your jets slides and such and also great out your gas tank for old fuel and rust ways to get rid of rust are cremes or shoving a %!ยค load or bolts in and shaking it if your mom or wife isnt home wrap it in blankets and throw it in the dryer but take out the pet cock and tape it off if that does work shoot me a email i had the same problem with mine but works great not e mail is j.d.o.s@hotmail.com