Alpha 1 (1983-90) S/N 6225577 & UP
ensuring the vanes are oriented in the same direction as the old one (typically turning with engine rotation)
3827167 Volvo Penta TAMD73 3838952
777128 Used in sterndrive applications OMC Cobra 7
look for blockages in cooling passages
Hand Fuel Primer Bulb – Fits Mercury, Yamaha, Johnson/Evinrude (Replaces 9001080A, 50073805, 73805) Yamaha Alpha 1 (1983-90) S/N 6225577Product Details This high quality Hand Fuel Primer Bulb Fits Marine Boat Outboard Motors (Replaces 9001080A, 3 8") is designed for most marine vessels with 3 8" (10mm) fuel lines. It is suitable for outboard motors from major brands like Mercury, Yamaha, and Johnson Evinrude that use low pressure carbureted fuel systems. It serves as a direct replacement for multiple OEM and aftermarket parts, including Mercury 9001080A and Johnson Evinrude 50073805,