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Ford 641 spewin black smoke


 
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Mike from Michigan
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PostPosted: Thu Nov 15, 2012 7:19 pm    Post subject: Ford 641 spewin black smoke Reply to specific post Reply with quote

1st problem:
Had the carb rebuilt a year ago. Three of four spark plugs pretty tarred up. When increase the throttle it sputters and then revs but spews out a lot of black smoke.
Checked the settings on the carb and believe to be okay. Something internal on the carb? Any ideas?
2nd problem:After running a while and then turn off, wont start again until cool down. Press on the starter switch and get nothing. Bad connection?
 
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Royse
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Joined: 17 Jan 2011
Posts: 6411
Location: Michigan

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PostPosted: Thu Nov 15, 2012 7:35 pm    Post subject: Re: Ford 641 spewin black smoke Reply to specific post Reply with quote

First I'd check the spark.
When was the last time you checked/cleaned/gapped/replaced the points?
You may want to replace the plugs too.
Starter switch could be a bad connection.
Its cheap to clean and tighten all the connections. Just takes some time.
Let us know what you find.
 
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Roger in Iowa
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Joined: 12 Oct 2007
Posts: 1584
Location: Ottumwa, Iowa

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PostPosted: Thu Nov 15, 2012 7:47 pm    Post subject: Re: Ford 641 spewin black smoke Reply to specific post Reply with quote

Black smoke is too much fuel. Can be carb adjustments or air filter system.
 
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ZANE
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Joined: 10 Aug 1998
Posts: 10175


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PostPosted: Fri Nov 16, 2012 6:06 am    Post subject: Re: Ford 641 spewin black smoke Reply to specific post Reply with quote

Around this part of the world we have a little bug called the "Dirt Dobber". I've seen these little devils block the whole air cleaner tube with their big dirt nests.

I hate Dirt Dobbers!!!!!!!!!!!!!!!!!!!!!!!!!!!

Zane
 
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