You will also need a new Carb adaptor when you go to a walbro carb. You can get one at RC Americathey do mostly boatsbut their intake is pretty cheap. They also sell a cheap engine mount, you will need that also. Get rid of the stock muffler and get a Bennett built RC type. Finally, you will need to machine the flywheel fins down and get a Prop Hub. I can do the machining if you are interested-Lee