M19 1.6c c Mini SAM Hit & Miss 4-Stroke Vertical Gas Engine | Internal Combustion Model with Flyball Governor. 1 × M19 4-Stroke Gas Engine (with wood base). Fill the tank with 95-octane gasoline. If the engine fails to start (with functional ignition and proper fuel), adjust the carburetor needle valve: Tighten the main needle fully, then loosen it1/4 turn to achieve the optimal air-fuel mixture.
