Atlantic British Ltd. - Largest Independent Supplier of Parts & Accessories for Land Rovers

An easy check is to spray your ignition wires with water - a fine mist from a spray bottle works best. Start the engine and closly check if you see any sparks between any of the ignition wires and the rocker covers or any other part of the engine. If you see any sparks that means they are not getting to the spark plugs and your engine will not run properly. Replace the wires - one at a time to ensure you don't put them in the wrong place and then see if the engine is running smoother.