I had to replace the fuel lines on my pole saw and since then it won't start. I think the jet is plugged where the fuel goes into the carburator because when I press on the primer bulb several times it pressures up and I can't push it anymore. I drained the fuel and took the line back off and tried to vaccuum the connection going into the carburator. After that I could push the primer bulb without it pressureing up. I put it back together and it started and ran for a little while and died. I pushed on the primer bulb and it pressures up just like before so any idea's what I need to try next? Thanks for any information