I apologize if this has been answered but I have had ongoing issues with my mini dying, not idling or bogging down and spark plugs fouling. Working my way through a checklist of what could be wrong. I couldn’t find a specific answer if anyone knows the valve clearances? My mini has 4 valves per cylinder. Also any good resources for manuals? Anyone who is knowledgeable or works on these in Illinois? Thanks in advance, Dan