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Speedometers not working? |
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mesc 
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Joined: August-23-2008 Location: United States Status: Offline Points: 33 |
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 Topic: Speedometers not working?Posted: September-01-2008 at 5:59pm |
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I've got an 84 SN 2001, that I finally got running great. Now to fix the rest. What would cause a speedo to not work in the water, but when air is pushed though the pickup the speedo registers?
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mesc
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Booty
Groupie 
Joined: July-30-2007 Location: United States Status: Offline Points: 46 |
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Posted: September-01-2008 at 10:30pm |
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Sounds like you blew the pluggage out of them do they wok now that you blew them out, Be carefull not to rupture the diaphram inside them with to much pressure
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Booty
82,2001 82,2001 |
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74SkiNautique
Senior Member 
Joined: July-29-2008 Location: Lynchburg, VA Status: Offline Points: 228 |
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Posted: September-01-2008 at 11:17pm |
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On the pick ups, there should be a small plug on the bottom/back. Mine were missing and i had the same problem. I went out and got two stainless steal set screws(not sure the size) and theaded those in there. Fixed it! Thats an Idea.
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74SkiNautique
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8122pbrainard
Grand Poobah 
Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Posted: September-02-2008 at 8:07am |
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David,
You may have blockage from junk that has found it's way into the pulsation dampeners. These are tubes about a inch in diameter, about a foot long and mounted on the inside of the transom. I'd remove them, clean them out and then blow the pitot line out from the speedos back to the transom. Check for any leaks in both the lines and the dampeners. |
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