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Charles
Charles, Marine Mechanic
Category: Boat
Satisfied Customers: 3343
Experience:  US Navy (Ret) Certified Mercury Marine Tech with over a decade of repair experience.
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I have a 2000 100 hp model f100xrz and need to test the water

Customer Question

I have a 2000 100 hp model f100xrz and need to test the water pump. How do I do that?
Submitted: 1 year ago.
Category: Boat
Expert:  Charles replied 1 year ago.
Hello, my name is***** you for allowing me to assist you today.
Some Yamaha engine s will not pump water on a hose. You will need to place it in the water, whether a trash can or a body of water. Then start the engine. Allow it to warm slightly. You should see a steady stream from the engine tale-tell.
If it has been more than 2 yrs since the last time that you had an impeller installed into he engine, it is time for a new one anyways.

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