Good day David here, I do hope that someone can help, my 041 won't oil , I have removed the oil pickup pipe and filter given it a good clean, filled the oil reservoir with spirit based cleaner, given it a shake, put filter pipe back, refilled with oil, still oiler not working, apart from the internal oiler parts, I believe that there is a disc with a pin that fits behind the rim spro ket and clutch drum, that engages the oiler any help welcomed regards David.