Looking for Red Head Spark plug or plugs in 1/2 inch pipe thread in good usable condition. The Champion no 25's seem O.K for Shaw's with battery coil ignition but are failing under magneto use. A friend loaned me a Red head and it seemed to do much better, but he wanted it back! Leads or other plug type suggestions appreciated. I am not an absolute purist as long as it works. Thanks, John Hasty www.shawcycle@yahoo.com (620)763-2357