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Flushing Yamaha Jet Boat
- Thread starter giff
- Start date
- Tagged users None
Babin Farms
Jetboaters Admiral
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- 3,615
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- Location
- Lower Alabama
- Boat Make
- Yamaha
- Year
- 2009
- Boat Model
- AR
- Boat Length
- 23
You’d be better off installing tow/flush valves. Too much pressure and you run the risk of blowing gaskets.
giff
Active Member
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- 40
- Boat Make
- Yamaha
- Year
- 2019
- Boat Model
- SX
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- 19
Understood and thanks. I actually bought a valve to install to close off the seawater intake line because I flush while floating in my slip. I just ended up clamping off the rubber intake hose as I had no room to install the valve.
WREKS
Jetboaters Lieutenant
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- 1,161
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- 167
- Location
- Port Saint Lucie, Florida
- Boat Make
- Yamaha
- Year
- 2007
- Boat Model
- SX
- Boat Length
- 23
@giff I would not pressurize the cooling system in any way. The cylinders and water passageways are very close to one another. I think it is possible to force cooling water into the cylinders. Even tow valves increase the pressure on the cooling system. Looking at a head gasket will show how close the water passageways are to the cylinders.