A little more progress on the plumbing. The fuel tank is one that I had bought from Hobby-Lobby for another project. It is a great fit and holds about 18 oz....It is held in place with Velcro and has some foam rubber between it and the framework to cushion the vibration.The throttle linkage can also be seen alongside the tank.The muffler is the one supplied with the engine. I made the brass clamp/standoff so it can be secured in place. That is a 6.5 inch Saito exhaust extension.