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what are the possible vacuum leak locations?
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robertbruder View Drop Down
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Points: 335 		Post Options Post Options   Thanks (0) Thanks(0)   Quote robertbruder Quote  Post ReplyReply Direct Link To This Post Posted: August-17-2019 at 2:14am
Here is a picture of that port on my dissassembled carb for reference. Mine has a valve on the end, presumably to adjust it
.
Current: 1988 Sierra Supreme
Past: 1986 Correct Craft Martinique, 1984 Ski Supreme, 1984 Bare Foot Nautique
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Points: 10640 		Post Options Post Options   Thanks (0) Thanks(0)   Quote KENO Quote  Post ReplyReply Direct Link To This Post Posted: August-17-2019 at 7:42am
Originally posted by rbuk rbuk wrote:

Hey all. I just picked up a 1984 Ski Nautique and Im chasing some vacuum issues as well. Not to derail but can someone please tell me where I am supposed to have the line running off the top drivers side of my carb running to? I currently have it capped off as it just sucks air inn. I have no idle issues but know it's supposed to go somewhere thanks !


You also have no wires hooked to your choke heater element

Hopefully the choke is disabled in the fully open position, otherwise you'll have some running issues.

It looks like you have an older marine Holley with adjustable floats or somebody added bowls with adjustable floats or maybe added a non marine carburetor

And I can see what looks like an HEI distributor sneaking into the picture

And a rubber fuel line that may or may not be USCG approved, you can tell by the lettering on the line. It should say USCG A1-15 on the hose
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Grand Poobah
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Points: 10640 		Post Options Post Options   Thanks (0) Thanks(0)   Quote KENO Quote  Post ReplyReply Direct Link To This Post Posted: August-17-2019 at 7:48am
Originally posted by robertbruder robertbruder wrote:

Here is a picture of that port on my dissassembled carb for reference. Mine has a valve on the end, presumably to adjust it
.


That little brass fitting is just a cap with a fine screen inside of it
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robertbruder View Drop Down
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Points: 335 		Post Options Post Options   Thanks (0) Thanks(0)   Quote robertbruder Quote  Post ReplyReply Direct Link To This Post Posted: August-17-2019 at 10:08am
Originally posted by KENO KENO wrote:



That little brass fitting is just a cap with a fine screen inside of it


Thanks Keno! Look at that I already learned something new today!
Current: 1988 Sierra Supreme
Past: 1986 Correct Craft Martinique, 1984 Ski Supreme, 1984 Bare Foot Nautique
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robertbruder View Drop Down
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Points: 335 		Post Options Post Options   Thanks (0) Thanks(0)   Quote robertbruder Quote  Post ReplyReply Direct Link To This Post Posted: August-19-2019 at 11:21pm
If anyone has the same problem, after replacing all the pcv tubes, pcv valve, both separator gaskets, and rebuilding the Carburetor I am now able to set my idle at 500 to 700 RPM under load.
Current: 1988 Sierra Supreme
Past: 1986 Correct Craft Martinique, 1984 Ski Supreme, 1984 Bare Foot Nautique
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