It takes a $45.00 Walbro carb and adapter and a $14.00 spark plug with a $90.00 ignition system....Don't know about the weight, but I suspect the ST would be lighter.....
The cylinder head could be re tapped to use the $3.00 CM6 spark plug...
Fuel----Gas and 10% oil for the bushing connecting rod--works fine..
The Walbro gives perfect idle and transition, and because of the pump there is no problem with tank height or location....