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99 pro air GT-40- cuts out under power

Printed From: CorrectCraftFan.com
Category: General Correct Craft Discussion
Forum Name: Common Questions
Forum Discription: Visit here first for common questions regarding your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=37249
Printed Date: November-24-2024 at 11:55am


Topic: 99 pro air GT-40- cuts out under power
Posted By: Johnpsteed
Subject: 99 pro air GT-40- cuts out under power
Date Posted: September-01-2015 at 4:32pm
I really need some help with my 99 Pro Air Nautique with the GT-40.I have had nothing but problems this year but have all been pretty easy to fix until now.

This past weekend I took it out and was running fine on Friday, ran good for the most part Saturday but started to die out under power but would pick right back up about 2 seconds later. Started to rain so took it back the the dock and that was pretty much it. Sunday, took it out and was running like a champ, went to get gas and they had a hard time filling the boat, worse than it already was but its always been a pain. Left the marina idled out fine, got into the gas it stumbled and cut off and made a gasping sound out the intake. Fired right back up and did the same thing, started it again and put it in neutral and revved it up and it was fine, put it in gear it skipped really bad and died. Pulled the gas cap off to check for a vacuum, left it off and gave it gas, same thing happened again it died...... any ideas where to go next?

Recently put new plugs, 60 and 15 amp circuit breakers, exhaust tubes, and impeller.

Thanks in advance!!



Replies:
Posted By: *mtrbtr*
Date Posted: September-01-2015 at 4:57pm
Fuel pump?

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2006 SV 211 (sold) went to the dark side
97 Sport Nautique (sold)
89 PS 190 (sold)
05 Four Winns H180 (sold)
89 Four Winns 180 Freedom (sold)
75 MFG (sold)


Posted By: Hollywood
Date Posted: September-01-2015 at 5:51pm
Originally posted by Johnpsteed Johnpsteed wrote:

Recently put new plugs, 60 and 15 amp circuit breakers, exhaust tubes, and impeller.
Thanks in advance!!

Recent overheat? When is the last time it ran right? This has me thinking choked up exhaust.


Posted By: Johnpsteed
Date Posted: September-01-2015 at 6:14pm
It did overheat, ran fine Friday but didn't really do too much and also ran great for the most part Saturday till the end.... Just surprised at how well it ran Sunday just before it started doing this!


Posted By: IAughtNaut
Date Posted: December-01-2015 at 2:07am
check the clip on your kill switch, they've been known to get loose over time

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bring the ruckus
http://www.correctcraftfan.com/diaries/details.asp?ID=5347" rel="nofollow - 2000 Pro Air


Posted By: Toertel
Date Posted: December-01-2015 at 5:04am
When was your last tune up?
Cap, rotor, wires, coil etc?

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1994 Sport Nautique


Posted By: lewy2001
Date Posted: December-02-2015 at 6:43pm
Check fuel pressure.

Have a read of this http://www.correctcraftfan.com/forum/forum_posts.asp?TID=25775&KW=&title=99-sn-gt40-fuel-supply" rel="nofollow - old thread

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If you're going through hell, keep going

http://www.correctcraftfan.com/diaries/details.asp?ID=2999" rel="nofollow - 89 Ski

<a href="http://www.correctcraftfan.com/diaries/details.asp?ID=5685" ta


Posted By: Tim D
Date Posted: December-02-2015 at 11:20pm
Have you checked the little fuel line inside the FCC?

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Tim D


Posted By: harriss28
Date Posted: December-07-2015 at 9:11pm
i had similiar issue. The fuel pump relay(s) were the problem


Posted By: jhersey29
Date Posted: December-07-2015 at 11:25pm
Grab your self the http://www.amazon.com/Actron-CP7818-Fuel-Pressure-Tester/dp/B0006V2BI2/" rel="nofollow - Actron and put on the fuel rail. Just leave it on, Zip tie it to the water line. When it starts to act up take a look at the pressure. Should stay steady at 39ish.

Drain the FCC into a 24 ounce or larger jar. Is there water in the drained out gas?

I also had a similar issue due to the rubber cover not on the cap and wires and the spark plug wires were cross talking to the TFI-IV and messing it up.


Posted By: tryathlete
Date Posted: February-05-2016 at 9:47pm
Sounds like a visit to the Poor Man's GT40 troubleshooting guide is in order. I'll toss my guess to check the anti-siphon valve. I don't know if that thing if plugged up would prevent the tank from venting but that might explain why it was really hard to fill up.

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2008 MasterCraft 197TT
1996 Nautique Super Sport
1988 Waterlogged Supra Mariah


Posted By: tryathlete
Date Posted: February-05-2016 at 9:53pm
I would check the fuel vent for clogging or for a collapsed vent line hose.

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2008 MasterCraft 197TT
1996 Nautique Super Sport
1988 Waterlogged Supra Mariah


Posted By: ScottZ
Date Posted: February-14-2016 at 10:19pm
Have you come to any resolution of our problem?

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Scott Zuelzke
Lake Mitchell , AL
       
1984 Ski Nautique       
1972 Skier



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