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Old 04-24-2014, 11:17 AM
Okoutlaw83 Okoutlaw83 is offline
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Boat: 2000 Xstar 310hp
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2000 XStar starting issue

Hello. I'm needing some help. I have a 2000 Xstar w the 310hp motor w about 700 hrs. The problem is once it gets hot and I turn it off for a couple minutes it will not restart until it is cool. If I turn the boat off and instantly turn it back on it starts every time. I'm getting no check engine lights and when she is running the boat runs perfect. Any help is appreciated
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Old 04-24-2014, 01:09 PM
curver900 curver900 is offline
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Boat: Mastercraft, prostar 2001 205v
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fuel pump? check the fuel presure...
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Old 04-24-2014, 01:25 PM
Okoutlaw83 Okoutlaw83 is offline
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Boat: 2000 Xstar 310hp
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I don't have a way of checking the fuel pressures but the line does pressure up and I hear the pump kick on w the key.
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  #4  
Old 04-24-2014, 01:53 PM
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JimN JimN is online now
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Quote:
Originally Posted by Okoutlaw83 View Post
Hello. I'm needing some help. I have a 2000 Xstar w the 310hp motor w about 700 hrs. The problem is once it gets hot and I turn it off for a couple minutes it will not restart until it is cool. If I turn the boat off and instantly turn it back on it starts every time. I'm getting no check engine lights and when she is running the boat runs perfect. Any help is appreciated
Open the throttle and try it. If it starts, it could be the ECT (Engine Coolant Temperature) sensor. If this works, measure the resistance with a multi-meter- it should be less than 800 Ohms at about 70F and the resistance should drop as the coolant gets hotter. If the exhaust smells of gasoline when you get it started and you see soot on the transom, it's a good bet that this is the cause.

If the air temperature is high, run the blower or open the engine cover slightly when you shut it down- it might be a heat soak issue.
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Old 04-24-2014, 01:58 PM
Okoutlaw83 Okoutlaw83 is offline
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Boat: 2000 Xstar 310hp
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Ok. I'm on the way to get the boat now I will look at both suggested options! Thanks!
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  #6  
Old 05-19-2014, 11:02 AM
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blackhawk blackhawk is offline
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Boat: 2006 X15 350 MCX
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JimN - Where is the engine coolant temperature sensor located on the MCX350 engines? Do the same ohm readings that you mention above apply to the MCX350? Thanks
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  #7  
Old 05-19-2014, 11:12 AM
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JimN JimN is online now
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Originally Posted by blackhawk View Post
JimN - Where is the engine coolant temperature sensor located on the MCX350 engines? Do the same ohm readings that you mention above apply to the MCX350? Thanks
Should be the same part- no reason to use something else.

It has one yellow wire and one black wire. That's the sensor you need to look for.
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