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Tried to post this earlier but it didn't go for some reason so I'll try again.
I think I've got a fuel issue but I'm getting stumped at this point. I can't run any more than 3/4 throttle. Push past and it bogs down and looses RPM. 4K RPM is all I can get until it starts to come up on plane then it will slowly gain speed and RPM up to about 5200 then that's it when it's loaded. When it's only me I can get to WOT but I have to slowly put the hammer down not just slam it. I've replaced the spin on filter, the small cartridge filter inside the hood, the u shaped filter on top of the VST tank, and the VST filter on the bottom of the high pressure pump. I ran it in the lake without the hood on it and the filter under the intake plenum never loses fuel or level in any situations. I've checked both of the little aluminum check valves and they work like they should. I even blew air all the way through the canister system and out through the hole in the hood latch. The orifice/ air vent was stopped up but I took it apart and got it working. After re-installing it and doing a lake test it seemed almost fixed on the first run from the trailer when it was cold but still had a slight hesitation that you can hear in this video: https://www.youtube.com/watch?v=IZF8QvF_mvg . After running it for 15 minutes or so this is what I was getting: https://www.youtube.com/watch?v=aeCz6thvkl4 . This video is of the GPS unit where you can see the RPM of the motor better: https://www.youtube.com/watch?v=HXV6m6MeAzA .
I have replaced the every filter on the system and checked all the lines and components under the hood, and it all seems to check out. It ran much better yesterday than it did on Monday, after I repaired the orifice, but it's still not right. It was only me in the boat for the test so I know when I load the boat I'll be back in the same creek. I got to thinking yesterday that during the off season I added the command link cable to my engine and it was a couple months before I used the boat. I don't remember when my trouble started though, I guess it's possible that I have the line pinched in the rigging tube and it's been slowly getting worse over time. I pulled it out and replaced and still have the same issue, runs good until it warms up then runs terribly. I don't know what it could be and I don't want to keep throwing parts at a problem. Up to this point everything I've done could be justified as maintenance.
I think I've got a fuel issue but I'm getting stumped at this point. I can't run any more than 3/4 throttle. Push past and it bogs down and looses RPM. 4K RPM is all I can get until it starts to come up on plane then it will slowly gain speed and RPM up to about 5200 then that's it when it's loaded. When it's only me I can get to WOT but I have to slowly put the hammer down not just slam it. I've replaced the spin on filter, the small cartridge filter inside the hood, the u shaped filter on top of the VST tank, and the VST filter on the bottom of the high pressure pump. I ran it in the lake without the hood on it and the filter under the intake plenum never loses fuel or level in any situations. I've checked both of the little aluminum check valves and they work like they should. I even blew air all the way through the canister system and out through the hole in the hood latch. The orifice/ air vent was stopped up but I took it apart and got it working. After re-installing it and doing a lake test it seemed almost fixed on the first run from the trailer when it was cold but still had a slight hesitation that you can hear in this video: https://www.youtube.com/watch?v=IZF8QvF_mvg . After running it for 15 minutes or so this is what I was getting: https://www.youtube.com/watch?v=aeCz6thvkl4 . This video is of the GPS unit where you can see the RPM of the motor better: https://www.youtube.com/watch?v=HXV6m6MeAzA .
I have replaced the every filter on the system and checked all the lines and components under the hood, and it all seems to check out. It ran much better yesterday than it did on Monday, after I repaired the orifice, but it's still not right. It was only me in the boat for the test so I know when I load the boat I'll be back in the same creek. I got to thinking yesterday that during the off season I added the command link cable to my engine and it was a couple months before I used the boat. I don't remember when my trouble started though, I guess it's possible that I have the line pinched in the rigging tube and it's been slowly getting worse over time. I pulled it out and replaced and still have the same issue, runs good until it warms up then runs terribly. I don't know what it could be and I don't want to keep throwing parts at a problem. Up to this point everything I've done could be justified as maintenance.
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