I have a Wheel Horse 414-8 that has a fuel problem that I can't solve. It began with engine dying as though out of gas, would restart run a few yards then die again. Made it back to house with choke pulled and barely running. Removed gas line from fuel pump to carb and cranked engine, no gas from line. Then removed gas line from fuel pump to tank, gas flowing good from tank. Bought new fuel pump, installed and would only run with choke full on and would die after few minutes of running. The throttle shaft in carb has wobble and excessive clearance plus had been having a surging problem for awhile. So bought a new carburetor , installed and still have same problem.. Now with clean line, new fuel pump, and new carb I still have the problem. When cold cranking takes excessive cranking or shot of starting fluid to get started. Then will only run with full choke. Dies if choke is pushed in. Even with choke pulled it will only run a few minutes before dying..I'm wondering if bad new fuel pump ? I've experienced worn cam lobes in small block Chevy engines that would not work the fuel pump arm effectively, is this possible with a Kohler engine ? Any ideas or help appreciated.......... Dign