
Yamaha recommends changing your fuel water separator every 50 hours. This is a recommendation that some boat owners follow, but others change their separators annually, or every 100 hours.
| Characteristics | Values |
|---|---|
| How often to replace | Every 50 hours |
| Once a year |
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What You'll Learn

Yamaha recommends changing the fuel water separator every 50 hours
Changing the fuel water separator is a simple process that can be done by the boat owner. It involves unscrewing the old filter and screwing on a new one. The old filter should be disposed of properly, as it may contain fuel residue.
It is important to keep track of the hours since the last change to ensure that the separator is replaced on time. Failing to do so can result in fuel issues and potential engine damage.
In addition to changing the fuel water separator, it is also recommended to change the VST filter and element filter every 100 hours. This will help to keep the engine running smoothly and prevent any potential issues.
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Some people change it annually
Some people change their Yamaha fuel water separator annually. Yamaha recommends changing the fuel water separator every 50 hours, but some people opt to change it once a year. This is a good idea if you have a hard screw-on fuel water separator that is difficult to reach. It is also a good idea to change the separator annually if you have burned a decent amount of fuel from the tank that sat stabilised over the winter.
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It's recommended to change the separator every 100 hours or annually, whichever comes first
It is recommended to change your Yamaha fuel water separator every 100 hours or annually, whichever comes first. This is because the separator can become clogged with debris and water, which can affect the performance of your engine.
Changing the separator is a simple process and can be done by unscrewing the old filter and replacing it with a new one. It is important to keep the separator clean and free of debris to ensure the engine runs smoothly.
Some people recommend changing the separator every 50 hours, especially if you have a hard screw-on fuel water separator. This type of separator can be more difficult to access and may require periodic draining.
It is also a good idea to keep a spare set of spark plugs on hand in case of emergencies. By following these recommendations, you can help maintain the performance and longevity of your Yamaha engine.
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The separator can be changed by unscrewing it
Yamaha recommends changing the fuel water separator every 50 hours. The separator can be changed by unscrewing it. This is a simple process, but it is important to note that if you unscrew the filter, gas may pour out. It is recommended that you drain the separator periodically to remove any water or debris. This will help to ensure that your engine is running efficiently and prevent any potential issues. In addition to changing the separator, it is also recommended to change the VST filter and element filter at 100 hours.
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It costs $23 plus tax to buy a new Yamaha fuel water separator
Yamaha recommends that you replace your fuel water separator every 50 hours. It costs $23 plus tax to buy a new one.
It's important to keep on top of this maintenance, as neglecting it can cause issues. One user on a boating forum said that they used to neglect this task because the separator was hard to reach, but now they make sure to replace it regularly.
It's also worth noting that some people recommend changing the separator annually, or every 100 hours, whichever comes first. This is because the filters are cheap insurance against potential issues with fuel.
In addition to the fuel water separator, it's a good idea to change your VST filter and element filter every 100 hours.
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Frequently asked questions
Yamaha recommends replacing the fuel water separator every 50 hours.
Yamaha recommends replacing the fuel water separator every 50 hours, regardless of the type of engine.
Yamaha recommends replacing the fuel water separator every 50 hours, but some users with this engine have reported changing it after 100 hours.
Yamaha recommends replacing the fuel water separator every 50 hours. However, some users with this setup keep an eye on their vacuum gauges and only change the separator when the gauges get into the red.











































