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Disconnect Linkages: Carefully disconnect the throttle and choke linkages
as well as aftermarket equivalents including Sierra 18-7116/18-7145
7L 4-Stroke 2002+ 816608Q61
Direct fit for Mercury Mariner 2-stroke 3-cylinder engines
Install New Gasket: Position the new gasket (27-33918) onto the housing
Thermostat Cover Gasket – Fits Yamaha 75–225 HP 2-Stroke Outboards (Replaces 688-12414-A1/00) family-yamaha-9-9elhp Disconnect Linkages: Carefully disconnect theThermostat Cover Gasket Fits Yamaha 75225 HP 2 Stroke Outboards This thermostat cover gasket is a direct replacement for a wide range of Yamaha 2 stroke outboard engines from 75 HP to 225 HP, including models from the SX150, S150, and two stroke HPDI series. It provides a reliable seal for the thermostat housing to the engine block, preventing coolant leaks and ensuring proper engine operating temperature. This part replaces original Yamaha part