Replacing the cylinder of a Saito FA-180 with a damaged exhaust port after an encounter with Terra Firma. It's an opportunity to use the FG30 cylinder and convert my FA-180 to gasoline. The new cylinder fits perfectly in the same space of the damaged one, and I've also installed an electronic ignition and an external fuel pump/regulator unit. An easy and rewarding upgrade of a great glow (methanol) engine to a 30cc 4 stroke petrol engine...