Yamaha Motor Co., Ltd. 5X4-11931-00-00 Push Rod Lever

The Yamaha 5X4-11931-00-00 Push Rod Lever is a genuine Yamaha replacement part that transfers motion within the engine governor and power valve system, commonly used in Yamaha YZ125 two-stroke off-road motorcycles and similar models. Installed inside the engine's internal governor assembly, it interfaces with the push rod, governor shaft, and valve mechanism to regulate valve timing and engine response. Built from hardened steel or alloy metal, this push rod lever is designed for model-specific Yamaha off-road engines. Common replacements include Yamaha 3JE-11931-01-00, 4JY-11931-00-00, and 3SP-11990-00-00.