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typically running from the fuel tank to the engine
always rinse the engine with fresh water after saltwater use
A: This gasket is designed for MerCruiser 3
Coat all blades and the inside of the housing
but typically every 2–3 years or when you experience hard starting
677-45113-A0 Power Head Base Gasket for Yamaha Mariner 6B 8B | JLM Marine family-yamaha-c60tlru typically running from the fuelPower Head Base Gasket Fits Yamaha Mariner 6B 8B 2 Stroke Outboards This aftermarket powerhead base gasket is precision engineered for Yamaha Mariner 6 HP and 8 HP 2 stroke outboard models (6B, 8B). Designed specifically for units with serial numbers starting with 677, this gasket ensures a reliable seal between the powerhead and block, critical for maintaining compression and preventing oil fuel leaks. Direct replacement for OEM part numbers: 677
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