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wkebrdr 
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Joined: April-08-2024 Location: 64078 Status: Offline Points: 1 |
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 Posted: April-09-2024 at 11:56am |
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I searched around, but what spark plugs are you using since going to the DUI?
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Bill
92 Ski |
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malcolm2
Senior Member 
Joined: June-13-2010 Location: Nashville Status: Offline Points: 239 |
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Posted: April-09-2024 at 12:23pm |
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I will have to check. I don't remember off-hand. I will get back here and reply with that. It has been quite a while, and I will say that this change was fan-dam-tastic. No more hiccups, super quick starts. ZERO ISSUES.
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Jonny Quest
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Joined: August-20-2013 Location: Utah--via Texas Status: Offline Points: 2978 |
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Posted: April-09-2024 at 1:18pm |
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Autolite 764 or 104 plugs. 0.055 gap with the DUI.
JQ
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Current
2003 Ski Nautique 206 Limited Previous 2001 Ski Nautique Open Bow 1994 Ski Nautique Open Bow Aqua skiing, ergo sum |
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KENO
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Joined: June-06-2004 Location: United States Status: Offline Points: 11112 |
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Posted: April-09-2024 at 6:08pm |
Since this is your first post, nobody knows whether your engine has the standard heads or gt40 heads. So..........the bestest, most correctest answer is to use the same plugs that are in it now because there were different plugs depending on the heads used
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1993R
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Joined: July-27-2005 Location: Hawthorne, FL. Status: Offline Points: 48 |
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Posted: June-29-2024 at 7:36pm |
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I just did this conversion on my 92 ski
Same boat as JPAss Everything installed easy and my distributor is positioned just like the photos TDC has been checked twice. Wires installed properly. Only issue is motor and starter are turning but no fire to plug wires Checked power to the HEI and it’s moves between 11 and 12 volts when cranking Checked my grounds seem okay Haven’t run new the power and ground wires to dash yet DEI said it sounded like the unit needed to be grounded and offered a suggestion on how to test it It didn’t change anything Any suggestions ? |
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KENO
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Joined: June-06-2004 Location: United States Status: Offline Points: 11112 |
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Posted: June-30-2024 at 1:36pm |
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Where are you checking power to the distributor? At the (+) terminal on the cap
Is the tach terminal hooked to the boat's gray tach wire? Nothing else hooked to the tach terminal Silly question, but is the 3 wire plug from the distributor plugged into the cap firmly? All 4 connections on the ignition module under the cap connected?
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rosconole
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Joined: May-10-2008 Location: United States Status: Offline Points: 759 |
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Posted: June-30-2024 at 4:01pm |
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Just hold the wires together put your foot in a bucket of water and crank it. Let me know if you feel anything.
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1989 ski nautique ,1991 barefoot nautique, 1993 Mustang Cobra 1998 5.0 Magazine shootout invitee
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KENO
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Joined: June-06-2004 Location: United States Status: Offline Points: 11112 |
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Posted: July-03-2024 at 11:23am |
You got this thing making noises like a running engine yet?
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1993R
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Joined: July-27-2005 Location: Hawthorne, FL. Status: Offline Points: 48 |
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Posted: July-03-2024 at 1:44pm |
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Keno
I will be jumping in it tonight
Got tied up at work but have next 5 days off You may have solved it via the tach wire I don’t have it going directly to the HEI Will route it properly and hopefully she fires up It’s been pretty hot in FL so early morning late nights are only times to work on stuff and feel comfortable Would like to get back to skiing again Will keep you posted Thanks |
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KENO
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Joined: June-06-2004 Location: United States Status: Offline Points: 11112 |
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Posted: July-03-2024 at 7:22pm |
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Hope you get going in time for the long weekend The Red wire in the picture is the only one that needs to be hooked up. The connection next to it is for the tach and if it's grounded, the coil won't spark. It's normally hooked to nothing at all or to the tach wire that runs up to the dash.  |
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wkebrdr wrote: