95 GTX is bogging down at high speeds

[lwayneman1]

Ok I rebuilt this carb and replaced all the fuel lins. It was doing this prior to me rebuilding. It runs strong and I can not get it to repeat this issue when I have it at home. (i have a water setup to run safey). There is nothing caught in the impeller that I can see. I heard this may cause the issue also. I did not change any of the springs so I d not see where it could be the POP off. (i really do not want to tackle that, but I will).

Any other ideas? High speed idle adjustment?

 

[Minnetonka4me]

Take it to the lake and try it on reserve and on and see if it makes a difference. Then open the gas cap and see if it makes a difference. Lastly drive it around with the seat off and see if it makes a difference. You can also run a hose directly from the pickup to the carbs and see if that does it.

If none of that helps its most likely something with the carbs.

 

[lwayneman1]

I was looking it over and inspecting everything pretty thurough. I found the oil filter was installed backwards from previous owner?? possible issue with top end cutting out? I will try all the other tests too mike.

 

[Coastiejoe]

Did you replace/clean the fuel selector?

 

[lwayneman1]

Yea I cleaned the old one. But found it to be too gummed up so I purchased a used one from this forum. It appeared in good shape.

 

[lwayneman1]

Take it to the lake and try it on reserve and on and see if it makes a difference. Then open the gas cap and see if it makes a difference. Lastly drive it around with the seat off and see if it makes a difference. You can also run a hose directly from the pickup to the carbs and see if that does it.

If none of that helps its most likely something with the carbs.

Ok so if any of that does make a difference then what is it?

 

[Minnetonka4me]

1st test is the fuel selector failing, 2nd test is check valves in the vents not working, 3rd is exhaust gas leak. 4th test is to bypass fuel selector and fuel water separator.

 

[lwayneman1]

OK sooo if the oil filter is reversed that will not cause the issue. I will double check the fuel selector again. The check valve vents are the ones coming off the baffle correct. I have not messed with them so I will double check them. They are one way vents correct. So I can blow air threw them to make sure they are not clogged. I am guessing they are one way towards the baffle not towards the hull. Seems like common sense.... however, I have no common sense so I always ask.

 

[lwayneman1]

OK I ran it with gas cap off (not easy to keep water out of that thing). No help. Ran it with Seat off... no change, ran it on reserve nothing.

If I put it in reverse I can get full throttle after a couple seconds of bog.

I noticed a weep hole in the exhaust is spraying water. I checked the exhaust water inlets and outlets. Water flowing fine. Can an exhaust get plugged? What would cause water to come out of weep hole? To be specific it is a round flat portion on the engine side next to the water inlet. It sprays water right on the plug next to the plug wire grounding posts.

I did notice the butterfly valves on the carbs were adjusted a little different. I tried to even these out but not sure it made any difference.

 

[lwayneman1]

Where is the stator.... I have not checked this.

 

[lwayneman1]

OK water is spraying on the stator plug. It seems water tight though. I will check all this. answers for teh weep hole issue would rock

 

[lwayneman1]

Could the water on spraying from the weep hole be an issue? What would cause this? This is the weep hole on the exhaust.... or is this not a weep hole and a crack lol