2007 4.3L TKS Mercruiser symptoms of a bad or loose Fuel water separator.

[Rcantu2]

I have been having trouble with the boat this season. It starts idles good and runs good but then after a while (40 mins). I can turn it off and then it has trouble restarting. I can wait a little while(5 to 10 mins) and then it will start.I was checking the fuel water separator yesterday and it was loose like i could turn it with my fingers easily without force. will a loose fuel water separator cause these symptoms?

 

[Bt Doctur]

when you run out of fuel , Yes Who installed the fuel/sep?

 

[alldodge]

Carb might be flooding,wonder if the TKS module is fully extended

 

[Rcantu2]

I installed it but I guess I didn’t tighten it enough... I usually tighten it by hand as tight as I can get it.

 

[Rcantu2]

TKS works great.... it hisses as soon as I start it and stops about 15mins later.

 

[alldodge]

Sounds like it was installed correctly and is working as required.
W

When it won't start, do you see any fuel dripping down the throat of the carb?

 

[Rcantu2]

I thought maybe it was sucking air because when it would not start I would have to go to WOT for it to start. Now today I went out and tried it at a small lake nearby. I ran it hard for about 40mins and turned it off. Then turned the key and it started right up.