Had an engine rebuild using a Mugello 186 v4. When I went to check the plug colour I couldn't get my usual plug wrench on to the plug. As its the same spanner that I've always used I couldn't understand why it wouldn't fit. My previous engine was a Mugello v1 and the spanner went on easily. The only way I could get the plug out was to place a socket over it (with difficulty) then undo it using an adjustable spanner. It looks as though the plug position is slightly different than the earlier version and as a result the plug no longer sits in the centre of the hole in the head cowling. Anyone else come across this? I know that I could trim the head cowl but wouldn't it be better if the supplied head had the hole in the correct place to start off with?
Steve