Engine idles very well, on sudden acceleration, coughs, hesitates, and often dies. I have checked for vacuum leaks, replaced carburator with working used one,new fuel pump, changed fuel filter(fuel flows easily) new ignition coil,wires, distributor cap,points, plugs and condenser. I have set the timing and checked for spark advance with and without vacuum line connected. When slowly increasing RPM, it develops a cackle as if a sticking valve, but will continue to run. often dies when shifting from park or neutral to drive. This vehicle is used for off road only, and all vacuum ports are plugged out of carburator except the one going to the vacuum advance selenoid. I would like your opinion, please. Don[img:88ff4df11c]http://www.2carpros.com/forum/automotive_pictures/498935_IM000605_1.jpg[/img:88ff4df11c]
Mar 11, 2010 at 4:06 PM