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99 Polaris Xplorer 400. Vapor lock?


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So I’ve rebuilt this quad and the only issue is fuel delivery. The filter fills up then runs out of fuel then dies. I’m thinking that vapor lock is the cause. And here’s my reasoning. The fuel lines are supposed to be 3/8 are 5/16 on there and it looks to have a huge filter on there. I did blow out all the lines and checked the petcock as well as the screens in the tank. Sonic cleaned the carb and replaced all the jets and needle. Blew out the vent lines too. Any one else have thought?

 

 

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It’s the same thing that happens with the filter. Runs great then dies. Ill show you guys what I’m talking about in a few minutes.

It’s awesome to be back. The quads took up some time. I have something else I’m working on too that will be custom and awesome.


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It’s the same thing that happens with the filter. Runs great then dies. Ill show you guys what I’m talking about in a few minutes.

It’s awesome to be back. The quads took up some time. I have something else I’m working on too that will be custom and awesome.

I’ve been doing okay. Got a lot things under control. I’m coming out to L.I.C next week. Have a few things to do down there. Let’s meet up and have a beer.


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