Got the NGK BPMR6 spark plugs yesterday, This morning i cut the tip off on the spark plug to fit on the spark plug cover then bring to the field for test. Prime the fuel to the carb. then started with the starter then the engine alive and ran beautiful, did some adjustment on the L/H a little richer then burn couple tanks to break in the engine. I spend lots of time for ignition and carburetor for nothing all about the spark plug just like Pe said it has to be resistor spark plug for that type of ignition. Thanks everyone.

Tom