Rancher idles fine but will not accelerate. I have replaced carb, rebuilt carb, changed fuel, new petcock and filter, installed in line filter, replaced spark plug, and installed new ignition coil. When I swapped out carb it ran good on test run but the next day i started and ran for a little then shut off and on restart it started doing the same thing again. Starts running ruff and dies when you try to give it gas. I've gone thru two other carbs and an the results are the same. Has good permanent air filter and no vacume leaks that I can tell. When it runs it run strong, low hours. I'm starting to think it may be the computer module.