I have a big issue with this because I have a direct replacement or supposedly is a 753-08319. Every place I see talks about having too short and one long nipple. Not sure if you can tell on this one but the one on the right is a short nipple with the other two being long. I have tried every which Way to hook this bad boy up and at one point I had it to where it was filling the primer bulb but it was also flooding out the weed eater. The only number on this primer bulb is 1. I really believe this is an aftermarket and they are just saying it is a 753-08319. Has anyone else run into this problem because I cannot get my weed eater to work. Help?