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TIMOTO, Mechanic
Category: Boat
Satisfied Customers: 1457
Experience:  Former Kawasaki pwc tech. current Honda pwc tech.
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My 2013 Yamaha waverunner was starting but would not stay

Customer Question

My 2013 Yamaha waverunner was starting but would not stay running. I noticed that the resonator had melted. What waste cause of it meltng?
Submitted: 1 year ago.
Category: Boat
Expert:  TIMOTO replied 1 year ago.

There are two likely causes. First a loose hose clamp on one of the cooling hoses has come loose and caused the cooling system to become inoperative. This occurs occasionally. Reference:

It will require a check of all the cooling system hose clamps to determine if this is the cause.

The second and most likely cause is sand or seaweed has clogged the cooling system passages. This will require an inspection of the jet pump cooling water inlet, clearing any debris and flush of the cooling system to repair.

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