Ok Sherrie, so far so good, with the screw/main jet and filter, put the filter up to the light, holding the screw end in your fingers and rotate it slowly and at a certain point you should be able to see through the filter, if not blow in through the small end and check again to see if the filter is clear. The next step once you get the new needle is to make sure the float will work properly to seat the needle, some primer caps are a problem, but we can work through that.