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07-02-2009, 07:41 PM
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#1 (permalink)
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Senior Member
Join Date: Jun 2009
Location: Highland Park, IL
Posts: 134
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Need tuning help.
Finally got this thing running, but not very well. The plugs were black with dry soot, so I put in new ones. Went for a ride and it starting running worse and worse. Very choppy idle, missing acceleration, and dies out. I thought it was the old gas from last year, so I drain it and put in fresh stuff. No change. I pulled the new plugs and they are totally black with soot. Now I'm assuming that means I'm running rich. I have an S&S330 carb. Please tell me what to do.
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1982 FLH80.
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07-02-2009, 08:25 PM
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#2 (permalink)
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Senior Member
Join Date: Jun 2009
Location: Highland Park, IL
Posts: 134
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Found the S&S instruction webpage. I think I need to re-jet the carb.
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1982 FLH80.
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07-02-2009, 08:46 PM
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#3 (permalink)
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Mentally unstable.
Join Date: Jun 2008
Location: Pennsyltucky
Posts: 6,448
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How did it run when you got it? I'm just wondering if the needle and seat have old gunky gas in it, causing the bike to run rich.....
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Dave
HERD MEMBER #10
"No man's life, liberty, or property are safe while the legislature is in session."-Mark Twain
I'm a big, hairy wrenching machine.....
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07-02-2009, 11:01 PM
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#4 (permalink)
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Senior Member
Join Date: Jun 2009
Location: Highland Park, IL
Posts: 134
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The seller just drove up the block and back with it. When I first starting riding it, it seemed okay, but it got progressively worse. The plugs were black in 15 minutes.
__________________
1982 FLH80.
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07-03-2009, 07:59 AM
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#5 (permalink)
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Mentally unstable.
Join Date: Jun 2008
Location: Pennsyltucky
Posts: 6,448
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The carb probably needs internal cleaning, Chris. I'd also add some Seafoam to the gas, to help clean some of the smaller fuel passages.
Does this have Electronic ignition or points?
__________________
Dave
HERD MEMBER #10
"No man's life, liberty, or property are safe while the legislature is in session."-Mark Twain
I'm a big, hairy wrenching machine.....
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07-03-2009, 08:27 AM
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#6 (permalink)
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banned
Join Date: Oct 2008
Location: _______
Posts: 2,139
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and (forgive me if I'm wrong) but lean it out a little, if your plugs get that black that quick, it's a sign of being way too rich, am I correct?
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07-03-2009, 03:19 PM
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#7 (permalink)
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Senior Member
Join Date: Jun 2009
Location: Highland Park, IL
Posts: 134
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Went step-by-step through the S&S carb adjustments and it's running really nice now. It winds out, and idles nice. Haven't pulled the new plugs yet, but judging by how it's running, I bet they're good. Thanks.
__________________
1982 FLH80.
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07-03-2009, 04:19 PM
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#8 (permalink)
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Mentally unstable.
Join Date: Jun 2008
Location: Pennsyltucky
Posts: 6,448
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Good deal Chris......excellent.....!!!! 
__________________
Dave
HERD MEMBER #10
"No man's life, liberty, or property are safe while the legislature is in session."-Mark Twain
I'm a big, hairy wrenching machine.....
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