www.iFourWinns.com

Any ideas? New anti siphon, new motor, new distributor, plugs, wires, new fuel hose to tank. The funny thing is if I idle out of marina and try to take off, it will bog down. If i shut it off then restart it will be fine. My next thing is to take out the high pressure pump and look at screen. Any more ideas?

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2001 Four Winns Vista 248 by rick2752, on Flickr

I had the same problem. I too would idle out and when we gave it throttle it would bogg down. Mine was related to vapor lock and my VST. My mechanic cleaned out my VST and so far so good. Also check if you pinched a spark plug wire.

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1996 278 Vista Dlx Twin 5.0
1999 Sea Ray 215 ex cruiser (sold)
1989 Seaswirl (sold)

I dont think I have a VST. Is a 2001 model. If I do I dont know anything about it. It is a TBI Model 5.7 GSI pefs

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2001 Four Winns Vista 248 by rick2752, on Flickr

Update...

I finally broke down and bought a new high pressure pump. It seems to have fixed the problem. Here is procedure

Fuel6 by rick oeder, on Flickr
Here is inside of old pump. The screw was epoxied closed but i used vicegrips to take it out, unplug harness and pulled right out. You can see the build up in the screen. I thought about cleaning it but i already have the pump and I am tired of working on it. Also the mesh isnt nearly as fine on the new one.
Fuel2 by rick oeder, on Flickr
Old pump cleaned up as a spare.

Fuel1 by rick oeder, on Flickr

New screen much better
Fuel3 by rick oeder, on Flickr

Fuel4 by rick oeder, on Flickr

Swap the ends as new pump didn't come with schrader valve to bleed.

Fuel5 by rick oeder, on Flickr

All finished, runs a ton better now. Ready for some Lake Erie perch.

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2001 Four Winns Vista 248 by rick2752, on Flickr

Nice work Rick!
I'm thinking of buying a spare mechanical pump for my old OMC; the original pump is still on there....

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88 Four Winns 200 Horizon
4.3 OMC Cobra-4bbl
2002 Walker Bay 10/2012 Suzuki 2.5
2008 Walker Bay 8

1998 Jeep Grand Cherokee 4.0/Selectrac
2007 Jeep Grand Cherokee 5.7 Hemi/Quadradrive II

Awesome, that has to be a major relief! Great photos.

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NEW - 2000 Cobalt 246 w/454 Magnum 385HP | SOLD - 2000 FW Horizon 180 LS w/5.0Gi 250HP Volvo Penta

3588865. Michigan motorz is where I bought it. High pressure side only. 200 dollars

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2001 Four Winns Vista 248 by rick2752, on Flickr