so, Arfur suddenly stopped. Investigation showed that the mag head wasn't turning. Further delving revealed that the mag drive sprocket had sheered away from the end of the exhaust camshaft. I am having great trouble finding a replacement shaft. The AJS/Matchless Owners stock can supply a spindle, but that involves pressing the old cam and gear off the old shaft, and on to the new one. Has anyone got a complete spare shaft out there? To reply direct, replace the third letter in my email address with another 'e'. Tony