choke wiring
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=35763
Printed Date: November-17-2024 at 7:50am
Topic: choke wiring
Posted By: Sleepyone
Subject: choke wiring
Date Posted: April-13-2015 at 12:39pm
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1987 ski nautique 454 Sorry if this is a stupid post but need to understand. The carb has 2 wires a black and a purple wire and then a tan wire going to the temp sensor. How does this sytem work to tell the carb that it needs to choke and not to choke and when to turn off the choke from the engine? 
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Replies:
Posted By: 81nautique
Date Posted: April-13-2015 at 1:13pm
Sorry, your engine is not that smart!  12v is sent to the choke any time the key is in the run position. There is no correlation between the temp sender and the choke operation. Coil spring when hot opens, as it cools the choke closes.
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Posted By: 8122pbrainard
Date Posted: April-13-2015 at 7:54pm
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Randy, Are you having a choke problem? I'd like to add one thing about the "coil spring" Alan described. It's a bimetalic spring. As it heats or cools, it winds or unwinds. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: jgold
Date Posted: April-18-2015 at 12:03pm
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I was hoping that someone could tell me what would cause me to blow the ignition fuse as soon as I turn on the key to the on position. I put the boat in the water yesterday started it and pulled over to the dock. Adjusted the timing and then it just stopped. I have tried to chase this a little bit this morning but I do not see any bad wires. Thanks, |
Posted By: spiralhelix
Date Posted: April-18-2015 at 1:26pm
| what model and year of boat? which is blowing, the 50 amp or the breaker switch? Does it happen every time you try and start it, or has it not been able to start since it "just stopped"? |
Posted By: Bri892001
Date Posted: April-18-2015 at 1:27pm
| Have you made any changes recently, is this related to choke wiring or a separate wiring issue? |
Posted By: jgold
Date Posted: April-18-2015 at 1:32pm
| The boat is a 1983 2001. I just rebuild the engine and only have 2.5 hours on it. Took it out last week and it ran okay. But while changing the thermostat I bumped the distributor and it moved so I reset the timing and it happened within seconds and does it every time. It is blowing the inline fuse net to the ignition. |
Posted By: jgold
Date Posted: April-18-2015 at 1:33pm
| Sorry for the typo. "Next to the ignition" |
Posted By: spiralhelix
Date Posted: April-18-2015 at 1:45pm
| have you checked all connections on the engine and under the dash to make sure something didn't break loose? I'm not familiar with the inline fuse on an 83 (what rating fuse is it?). I'm assuming since you said "on" position it comes off the red side (not purple). First thought, if it has electric choke, could the positive side have come loose and is touching the engine block? only thinking there as it is in the vicinity of the distributor. Not sure the exact wiring for the dist. itself, i thought the wire coming out was a ground. |
Posted By: 8122pbrainard
Date Posted: April-18-2015 at 1:56pm
I suggest not guessing but rather testing. Get the VOM out and start checking everything on the load side of the fuse. Disconnect each load and OHM to ground looking for a near zero reading. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
spiralhelix wrote:Posted By: Bri892001
Date Posted: April-18-2015 at 2:00pm
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A typical distributor will have 2 or 3 wires, unless you have a fancy one wire DUI. If it's a 3 wire, it's getting full, key switched battery voltage, as well as ground and the voltage connection going to the negative terminal of the coil. I'd say either the 3rd wire, or the wire going to the coil negative terminal is grounding out somehow. Here's a dizzy wiring diagram for a 3 wire setup, what are you working with? 
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Posted By: spiralhelix
Date Posted: April-18-2015 at 2:14pm
I certainly agree with you Pete. I shouldn't have "guessed", merely trying to verify that something simple hadn't happened. |
Posted By: jgold
Date Posted: April-18-2015 at 9:26pm
| Thanks ya'll. It was totally unrelated. There was a wire on the RPM gauge that was rubbing on a ground. I checked everything on the motor first. I'm just glad I found it. CorrectCraftFan.com is the best resource available. Many thanks! |