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GT40 takes longer to start when warm |
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wetskier2000 
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Joined: September-07-2005 Location: New Hampshire Status: Offline Points: 367 |
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 Posted: October-08-2022 at 4:03pm |
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... still starting a little slower than I think is normal... Finally checked the fuel pressure... Interesting results... 31 psi at first key on. 41 psi at second key on (not running). 35 psi running, but bounces from 31-ish to 39-ish along with a bouncing idle... Pumps, regulator, both??? thanks
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Current: 1997 Nautique
Previous: 1987 Nautique 1964 American Skier |
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KENO
Grand Poobah 
Joined: June-06-2004 Location: United States Status: Offline Points: 11112 |
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Posted: October-08-2022 at 7:22pm |
Shouldn't you be back in your own thread like the one in the link?  It's the one where you fixed your crappy idle.............temporarily I guess. Just to see what happens, I'd probably remove the vacuum line from the pressure regulator and plug it, then see if you have steady pressure at idle and if it idles smoothly or bounces. It should be steady at 39ish +/- 3 or so with the regulator disconnected The idle may still fluctuate due to being kinda rich with 39 psi but you'll at least know if the pressure stays steady with no vacuum signal to the regulator. That may help you be able to decide on pump or regulator replacement or just do both at the same time.
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wetskier2000 wrote: