The spark ignition engine is equipped with a sensitive, variable speed flyweight-type governor. The flyweights are mounted on the camshaft gear, while the governor sleeve thrust bearing assembly slides on the machined forward end of the camshaft, as shown in Figure 4M-1. Governor lubrication is achieved via a drilled oil passage from the front camshaft bushing. Additionally, a grease fitting is provided for lubricating the two governor lever shaft needle bearings housed in the timing gear cover cap, as depicted in Figure 4M-2.

Benefits

• Efficiently maintains uniform engine speed under varying load conditions
• Optimizes engine performance and enhances fuel efficiency
• Simplifies adjustments and servicing with a clear understanding of governor operation

Usage Recommendations

• Regularly inspect and maintain governor components to prevent wear and binding
• Follow adjustment procedures as outlined for optimal performance
• Utilize diagrams and instructions for precise servicing tasks