Starting Issue - Carb
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=26213
Printed Date: November-26-2024 at 11:51pm
Topic: Starting Issue - Carb
Posted By: nabes
Subject: Starting Issue - Carb
Date Posted: May-29-2012 at 12:40pm
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Good Morning. I am looking for some assistance or confirmation of a potential issue with my carburetor. I will also edit this post with the exact carburetor information once I get home tonight. Symptoms: The issue that I am having is that my motor will not start after it has sat through the week waiting for the weekend. At the beginning of the season when I started the boat this way I figured this was just an issue of the boat having sat for an extended period of time over the winter. The boat was stored during the winter/early spring (February) with a full tank of fuel and Sea Foam Fuel additive. I have been through two tanks of fuel in this boat so far this year. I have had to use a small shot of starting fluid into the air breather of the carburetor routinely every weekend we've been out. We normally arrive at the lake on Friday night and once this initial shot of starting fluid is used on Friday night it is not needed the rest of the weekend. The engine runs strong and does not sputter at anytime. It doesn't help the fact that I am new to this but I don't believe this should be a continuous issue with having to start the boat this way every time the boat sits throughout the week. Could the carburetor be losing its prime? As in the fuel evaporates or flows back to the tank throughout the drive back home (90 minutes)? Thank you for all your assistance!!! Nabes |
Replies:
Posted By: Bri892001
Date Posted: May-29-2012 at 8:25pm
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Do you give the throttle a couple pumps before attempting to start? Found this related thread, although it was somewhat in conclusive: http://www.correctcraftfan.com/forum/forum_posts.asp?TID=24472&title=replace-mechanical-to-electric-fuel-pump-in-80sn" rel="nofollow - http://www.correctcraftfan.com/forum/forum_posts.asp?TID=24472&title=replace-mechanical-to-electric-fuel-pump-in-80sn One thing it mentions though, you don't have a rubber line going from your pump, to the carb, do you? And, you'll catch hell on this site for using starting fluid. It's a bad idea for a couple or reasons. You're better off pouring a little gasoline down the carb. |
Posted By: 63 Skier
Date Posted: May-29-2012 at 10:14pm
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Nick, what boat and engine do you have? Like Brian said, after that first start that's a problem, I'm assuming the next day you still have to pump the throttle a few times for a cold start, right? And it starts fine? ------------- '63 American Skier - '98 Sport Nautique |
Posted By: SNobsessed
Date Posted: May-29-2012 at 10:31pm
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I would suspect the fuel pump. ------------- “Beer is proof that God loves us and wants us to be happy.” Ben Franklin |
Posted By: nabes
Date Posted: May-29-2012 at 11:14pm
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I have the 1986 Ski Nautique with the 351W motor in it. I haven't had time to run by the storage unit tonight to get more information on the carburetor. The interesting thing about it is that once the engine fires off on Friday night I don't have any issues with it starting the next morning. I will get some more information and see if the things you guys have suggested help me out. Thanks again for the help. I also understand the fact that the starting fluid is not a permanent fix and shouldn't be routinely used. Nabes
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63 Skier wrote:Posted By: nabes
Date Posted: May-29-2012 at 11:22pm
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Brian, Thank you for the link. From what I read on that thread some of that sounds familiar. I will try pumping the throttle just a short time longer to see if this helps to alleviate the issue. I appreciate your help. Nabes
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Posted By: 63 Skier
Date Posted: May-29-2012 at 11:29pm
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When you are at the boat, with the engine off, look into the carb while you pump the throttle and see if you have gas squirting from the accelerator pumps. ------------- '63 American Skier - '98 Sport Nautique |
Posted By: TRBenj
Date Posted: May-30-2012 at 11:50am
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I never figured out the issue on my Ski Tique (which I described in that other thread)... but my suspicion was the antisiphon valve. I had a new fuel pump, lines and carb on that boat, so not much hadnt been gone through! ------------- |
Posted By: JoeinNY
Date Posted: May-30-2012 at 12:53pm
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In order of my guess at likely hood Does your choke work? It should be closed when you get to the boat, then open slowly after you turn on the ignition... you should be able to see this by removing the spark arrestor. You should also check the clear tube coming from your fuel pump for the presence of gas.. if you have some then you have a fuel pump issue. Sometimes you can confuse a no gas issue with a too much gas issue... if you have dripped a lot of gas into the manifold over the course of the week then it wouldnt start either. If this was the case cranking it over with the throttle held fully open (be ready to close it should it catch) would be an indication that you need to adjust floats or change/clean needle/seat assemblies I have often had this problem on boats with plugged or badly adjusted (heavily lean) idle circuits. I havent really thought through why but if the carb is idling off the transfer slots and not the idle circuit it can be very hard to start after some down time. Fix to this would be a rebuild and proper adjustment. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1477 - 1983 Ski Nautique 2001 1967 Mustang 302 "Decoy" http://www.youtube.com/watch?v=cO5MkcBXBBs - Holeshot Video |
Posted By: nabes
Date Posted: June-04-2012 at 12:55pm
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UPDATE: After a trip to the lake this weekend the boat is operating just fine during initial start up. I wasn't priming the carburetor with the throttle sufficiently but once I pumped the throttle twice the engine fired right up. I appreciate the help and willingness to help someone that lives up to the "newbie" title when it comes to these boats. Thanks again! Nabes |