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Old 06-26-2009, 11:23 PM
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JMann JMann is offline
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Join Date: Nov 2008
Boat: 1991 Prostar 190, Indmar 351
Location: West coat, San Francisco bay area
Posts: 764
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Question fuel sending unit?

I just installed a new fuel sending unit in my 1991 PS190. It works but says I have 1/2 tank when I know it's closer to 1/4 or less. There are two little, what look like adjustment screws on the top of the sending unit. I assume one is the full and one the empty adjustment.

Do I want to adjust when full or Is there a sequence I should adjust them? Or should I not touch them and see what happens after a day on the water.
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Old 06-28-2009, 10:33 PM
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babymoore3 babymoore3 is offline
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Join Date: Apr 2005
Boat: 1988 Tristar 190
Location: IL
Posts: 88
I have not seen a sender with adjustment screws. Generally there are mounting screws and positive / negative for the sender. The adjustment is usually physical by the height and length of the float arm (sometimes a bend) on the sender.
1988 Tristar 190 - Looking to upgrade to more family friendly boat....
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