Carburetor
Printed From: CorrectCraftFan.com
Category: General Correct Craft Discussion
Forum Name: General Discussion
Forum Discription: Anything Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=50115
Printed Date: March-04-2025 at 1:46am
Topic: Carburetor
Posted By: Jakebean2015
Subject: Carburetor
Date Posted: August-08-2021 at 1:15pm
| Had to change motor last year in a 84 supreme , 351 PCM factory motor was in the boat , I installed the same motor after rebuilding it and added a mid rise intake to the motor . Fires up and runs great for about 45 mins . Then it seems to load up after idling when changing riders , . Do y’all always run marine carburetors ? If so what size ? I thank I have a fuel problem of some sort . PLEASE HELP |
Replies:
Posted By: 8122pbrainard
Date Posted: August-08-2021 at 1:20pm
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Jake, Knowing what carb you have now and if it's been rebuilt will help. ------------- /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: KENO
Date Posted: August-08-2021 at 5:30pm
Y'all should use a marine carburetor. Your engine originally had a 600 cfm Holley and 600 cfm is fine for what you did to the engine. Sometimes some people use an automotive carburetor, some of those people have a boat explosion or fire, some of those people end up in the hospital, some of those end up in the morgue, some are lucky and never have a problem  Otherwise like Pete said, more info would be good. What's your ignition setup? What's the intake manifold, brand and part number would be good
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Jakebean2015 wrote:Posted By: Nautiquehunter
Date Posted: August-09-2021 at 8:09am
Is the engine level or leaning back . If its leaning I have had great success with setting the float levels by installing a 9 degree wedge spacer under the carb to level it out. The pics are before the wedge.  |
Posted By: Jakebean2015
Date Posted: August-10-2021 at 9:31am
| The carb is a 700 Holley on top of a weiland stealth intake . Motor has 69.6 hours . |
Posted By: KENO
Date Posted: August-10-2021 at 11:59am
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The Weiand has plenty of seating area for the carburetor, so vacuum leaks shouldn't be an issue. A 700 cfm Holley probably doesn't have that magical "marine " designation but that won't be causing your running problem. Ignition system is what? There's an old saying that 90% of all carburetor problems are ignition related. so it's worth looking at the ignition system. Then again you may just need a carburetor cleaning or idle mixture adjustment to cure your problem.
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Posted By: Jakebean2015
Date Posted: August-10-2021 at 2:36pm
| So me not being a carb guy ,having another sitting in the shop I installed a summit street 600 . Have the same problem. I thank the carb is good . Should the coil be next being that is the only thing I didn’t change other than the distributor? |
Posted By: KENO
Date Posted: August-10-2021 at 4:29pm
| A coil wouldn't be a bad idea, but it would be good to know what the distributor is and if it's points or electronic under the cap |
Posted By: Jakebean2015
Date Posted: August-11-2021 at 3:23pm
| Mallory distributor with electric. I replaced the distributor about 5 years ago . Last summer replace the button, wires ,plugs . Is that helpful? |
Posted By: KENO
Date Posted: August-11-2021 at 3:40pm
Sorta helpful Assuming it's a Mallory with a Mallory module or it could be a Mallory with a Pertronix module, but if it had been running good with your setup in it before the rebuild, I'd probably replace the coil with the same as you have now and call it troubleshooting. It may or may not cure your problem , but at worst, you'll have a spare coil. Maybe the distributor cap is overdue for replacement too.
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Posted By: Jakebean2015
Date Posted: August-11-2021 at 3:47pm
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Mallory sae j1171 distributor With Mallory electric inside With Mallory pro master coil . |
Posted By: KENO
Date Posted: August-11-2021 at 3:53pm
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If you need a cap and the Mallory part number is 209D, a good place to find a cap is in the EBAY link below. An OMC 982209 is a NOS OMC cap that works great and is cheaper since it's old and gathering dust on shelves. I'd call it a repackaged Mallory cap with the OMC label on the box http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313&_nkw=omc+distributor+cap+982209&_sacat=0&LH_TitleDesc=0&_odkw=OMC+distributor+cap&_osacat=0" rel="nofollow - link I'd probably buy some more but I think I have enough to last until I'm 108 years old |