I have an 026 that only runs with the choke engaged. I had noticed it starting to run inconstantly the last couple times I used it. A little adjustment on the screws and it would take off. I'd zero everything out and put a turn in the H & L. Now it only runs with the choke on. Evidently starving for fuel. Checked the fuel filter and fuel line. They check out good. No holes in the line. I'm suspecting seals. Started to do a vacuum test last weekend but my vacuum pump is hosed. Gaskets and seals are cheap....$10. Am I looking in the right direction? Thanks in advance for any comments.