Yes Martin at Burwins mikuni conversion transformed my super 5 into a delight lovely low bing ding ding tick over and no hunting on over run also 85 mpg on last top up. Air box hose should be treated to plenty of boiling water and levered on using tea spoons to save machining the bell mouth down but once fitted you will not look back. Starting on mine is 2 prods to prime and 1 kick to start. Most other conversions cost less but this is the by a country mile . My friend David Ley zed riders and kent section British 2 stroke club has done the same and is over the moon with the ease of starting and smooth running. try it. A quarter turn on the mixture screw either way is all you will need .
Simon Rotgans