1990 SN Fuel Starved
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=34112
Printed Date: November-17-2024 at 12:26pm
Topic: 1990 SN Fuel Starved
Posted By: astinespring
Subject: 1990 SN Fuel Starved
Date Posted: July-12-2014 at 3:48pm
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my 1990 ski nautique with the PCM 351 is cranking and idling normally, but when we gun it, as if to pull a slalom skier out of the water, it just dies. You can hear the carb trying to pull a lot of air in, and it seems like there just isn't enough fuel to support what you're trying to do. We have just replaced the fuel filter/separator, thinking that was our issue, but apparently not. Just to clarify, the carburetor IS getting fuel. Help?
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Replies:
Posted By: Bri892001
Date Posted: July-12-2014 at 4:39pm
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What if you ease it up to higher speeds. Will it be able to hold the higher speed?
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Posted By: astinespring
Date Posted: July-12-2014 at 4:47pm
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Yes it is holding the speed in a fake lake situtation, not sure with a skier behind.
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Posted By: Bri892001
Date Posted: July-12-2014 at 5:22pm
Hmmm... You'd have to see if it would hold the speed under load; like cruising in the water.
Wouldn't necessarily have to be with a skier.
I'm just trying to figure out if it's just an accelerator pump issue, or a fuel flow/restriction issue.
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Posted By: 65 'cuda
Date Posted: July-12-2014 at 5:51pm
Pump,
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Gary
http://www.correctcraftfan.com/diaries/details.asp?ID=941" rel="nofollow - 1965 Barracuda SS
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Posted By: calebcl
Date Posted: July-12-2014 at 6:28pm
Co-Owner of that 90 ski here...last time the boat was on the water, it wouldn't die at full throttle while pulling a skier, but would die shortly after slowing back down to idle; as well as being starved when you gun it. What are the symptoms of the accelerator pump being bad?
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Caleb
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Posted By: quinner
Date Posted: July-14-2014 at 2:50pm
I would start by removing and inspecting the anti-siphon valve, if it's clogged up and restricted it will starve the fuel flow.
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Posted By: SNobsessed
Date Posted: July-14-2014 at 7:55pm
After that, try running boat with gas cap loose. It's rare, but the vent hose can get clogged.
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“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin
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Posted By: ezim
Date Posted: August-01-2014 at 1:10am
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If you haven't fixed problem, check fuel pickup tube in gas tank. Take apart and check the two screens at top of pick up tube. They get clog with debris.
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Posted By: 1987don
Date Posted: August-05-2014 at 1:00am
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had similar issue last year with my 87 sn ...fuel line was collapsing from being ruined by ethanol in the gas. I replaced the line from the top of the tank to the fuel ands water separator and then from there to the carb...problem solved
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