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#1
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That carb needs some serious work. I bet what is happening to you is the needle and seat is running over from the looks of it. But it also looks like you have a leak in the accelerator pump plunger through the top I believe.
I just looked at your video again, and it is DEFINATELY overfilling with gas from the pictures. Be careful as running without your flame arrestor and raw fuel is how explosions happen. I wouldn't run that engine anymore until you get that fixed. That isn't just a running problem, that is a safety problem. If it were mine I would find a good 2 barrel ROCHESTER off of a 305 CHEVY or 4.3L V6 engine and put that on it. There are a couple on EBAY now, but they need rebuilt.
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2011 SUNDANCE B20CCR SKIFF, 2011 YAMAHA 90HP 4 STROKE, 2011 KARAVAN SINGLE AXLE ALUMINUM TRAILER, LOWRANCE ELITE-7 HDI, MINN KOTA RIPTIDE TROLLING MOTOR 2000CC HYDRA-SPORT 225+HP EVINRUDE SOLD  AND THE PINK JEEP!!!! R.I.P. http://www.wellcraftv20.com/communit...ad.php?t=11664 
Last edited by THEFERMANATOR; 07-04-2008 at 10:29 PM. 
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#2
07-05-2008, 08:26 AM
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Why Rochester
Why a Rochester instead of swapping it for a Holley. Is there anything I don'tknow about the Holley that is to be avoided. I will not run the boat unitl I get it fixed. Today I will change the rest fo the fuel line which is not marine grade. See how it goes today. Thanks for the adivce.
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#3
07-05-2008, 08:55 AM
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In my expierences, its that the rochester is cheaper and easier to work on than a holley. I had a holley 650 vs on an old hotrod and was constantly blowing the power valve. I put a rochester 4 bbl on it and never had another carburation issue.
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'86 V20 Cuddy w/ '86 Yamaha 200  Take a kid fishing
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#4
07-06-2008, 02:15 PM
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Nothing wrong with a HOLLEY, the ROCHESTERS are just cheaper and more plentiful. And I would give the economy edge to the ROCHESTER over the HOLLEY as well. HOLLEY'S are nice simple carbs, about as basic as you can get. The ROCHESTERS are a little harder to work on, but still not bad. Plus in your HP range the ROCHESTER would probably be better suited. And 2 barrel HOLLEYS in marine apps aren't very plentiful as the ROCHESTER in a 2 barrel was more widely used.
__________________
2011 SUNDANCE B20CCR SKIFF, 2011 YAMAHA 90HP 4 STROKE, 2011 KARAVAN SINGLE AXLE ALUMINUM TRAILER, LOWRANCE ELITE-7 HDI, MINN KOTA RIPTIDE TROLLING MOTOR 2000CC HYDRA-SPORT 225+HP EVINRUDE SOLD AND THE PINK JEEP!!!! R.I.P. http://www.wellcraftv20.com/communit...ad.php?t=11664
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