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1 Week Ago
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Know It All
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Join Date: Sep 2015
Posts: 162 Sportster/Buell Model: sportster Sportster/Buell Year: 1968
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I may have it fixed. I removed the Mikuni adapter, made a new gasket, stoned the mating surface of the S&S manifold, and put a very thin coat of gasket sealer on the mating surfaces, and bolted it up. The first run was way to rich lots of exhaust smoke with the needle clip down 2 notches, had to move it back one. adjusted the air mixture needle to 1 turn out and it runs good no popping back. Must have been an air leak, something I had not thought of. Thanks to Doc308 for the suggestion.
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1 Week Ago
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XL FORUM TEAM MEMBER
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Join Date: Feb 2009
Location: ny
Posts: 734 Sportster/Buell Model: sportster stroker xlch Sportster/Buell Year: 1970 Sportster/Buell Model #2: sportster xlh Sportster/Buell Year #2: 1973 Other Motorcycle Model: 99 inch sportster Other Motorcycle Year: 2003
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Quote:
Originally Posted by 01rk
I may have it fixed. I removed the Mikuni adapter, made a new gasket, stoned the mating surface of the S&S manifold, and put a very thin coat of gasket sealer on the mating surfaces, and bolted it up. The first run was way to rich lots of exhaust smoke with the needle clip down 2 notches, had to move it back one. adjusted the air mixture needle to 1 turn out and it runs good no popping back. Must have been an air leak, something I had not thought of. Thanks to Doc308 for the suggestion.
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When you get some miles on it let us know if the mileage goes up. PS make sure you add the support bar from the air cleaner to the tappet bolt. Good luck!
+1 Doc308 |
1 Week Ago
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XL FORUM TEAM MEMBER
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Join Date: Jun 2012
Posts: 584 Sportster/Buell Model: XLH Sportster/Buell Year: 1969 Other Motorcycle Model: Softail Slim Other Motorcycle Year: 2016
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Quote:
Originally Posted by 01rk
I may have it fixed. I removed the Mikuni adapter, made a new gasket, stoned the mating surface of the S&S manifold, and put a very thin coat of gasket sealer on the mating surfaces, and bolted it up. The first run was way to rich lots of exhaust smoke with the needle clip down 2 notches, had to move it back one. adjusted the air mixture needle to 1 turn out and it runs good no popping back. Must have been an air leak, something I had not thought of. Thanks to Doc308 for the suggestion.
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My pleasure, friend! So glad that this worked out for you. Check your plugs over the course of the next few rides to tweak the adjustments to perfection. |
3 Days Ago
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XL FORUM TEAM MEMBER
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Join Date: Nov 2018
Posts: 321 Sportster/Buell Model: XLH Sportster/Buell Year: 1973
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has the b got an air bleed ? if so where is it
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3 Days Ago
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XL FORUM TEAM MEMBER
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Join Date: Feb 2009
Location: ny
Posts: 734 Sportster/Buell Model: sportster stroker xlch Sportster/Buell Year: 1970 Sportster/Buell Model #2: sportster xlh Sportster/Buell Year #2: 1973 Other Motorcycle Model: 99 inch sportster Other Motorcycle Year: 2003
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Quote:
Originally Posted by 73HEAD
has the b got an air bleed ? if so where is it
That hole on the right side.
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