| 摘要 |
PURPOSE:To aim at the promotion of stable and smooth fuel feed as well as to improve drivability ever so better, by setting up an exhaust system at the one side and a fuel system at the other side in a distributive manner to a cylinder axis of an engine body. CONSTITUTION:A muffler 21 is set up at the one side to a cylinder axis of an engine body 1, and this muffler 21 is interconnected via an exhaust port 22 and an exhaust pipe 23 of a cylinder 5. A fuel system consisting of a fuel tank 13, an air cleaner 17, a carburetor 18, etc., is set up at the other side of the engine body 1. It is insulated from an exhaust system where the fuel system is a heating source. Thus, fuel feed in time of engine running is stably and smoothly performed and tilting drivability is well improved. |
