Question about 2003 Harley Davidson FXD Dyna Super Glide

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How do i lean out carb on 2003 dyna - 2003 Harley Davidson FXD Dyna Super Glide

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This is done by changing the main jet for full throttle adjustments, adjusting the metering rod (jet needle) clip position for midrange and the pilot (slow) jet for idle and just off idle. There is also usually a mixture screw on the carb somewhere, location depending on which carb, that will also control the low speed mixture. Why are you wanting to lean the jetting. If a carb becomes rich for some reason the solution would be to fix the problem not band-aid it with leaner jetting.

Posted on Jan 07, 2013

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Posted on Jan 02, 2017

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How do i adjust the idle on my 03 dyna wide glide


Hi Anonymous, on the right hand side of the carburator there is an idle adjusting screw with a spring behind it, turn screw clockwise to increase idle counter clockwise to decrease idle. There is also an air/fuel mixture screw inside a carb body lug that may or may not be plugged with an aluminum cap that's about 3/16" thick. This cap can be drilled out to acess the air/fuel mixture screw. Turning screw clockwise will lean out mixture and lower idle, turning screw counter clockwise will richen mixture and raise idle. You need to balance the two adjusting screws to obtain an idle of 950-1000 RPM then back out air/fuel mixture screw 1/4 turn, snap throttle to confirm responce, you may continue to back out air/fuel mixture screw untill desired throttle responce is achieved, if you see black smoke coming out of exhaust you have gone to far and need to turn screw back in 1/8 turn at a time. Good luck.

Aug 18, 2012 | 2003 Harley Davidson FXDWG Dyna Wide Glide

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2003 HD dyna superglide, bike will not idle and


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Jul 15, 2011 | 2003 Harley Davidson FXD Dyna Super Glide

1 Answer

My Dyna Lowrider 2005 will not idle after warm up. Runs fine on choke.


The pilot jet in your carb is stopped up causing no idle unless choke is on,clean the carb jets and your problem should go away,a clogged pilot/idle jet will cuase a lean condition,and when you use the choke it will draw just fuel and no air,hope that helps.

Mar 10, 2011 | 2005 Harley Davidson FXDL - FXDLI Dyna Low...

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I have a 2003 FXD Superglide with low mileage...it backfires, hestitates and seems to run lean..It runs just fine when I pull out the maunal choke slightly...Is it a carburetor problem or an air mixture...


Your carb probably need going through. I would suspect that it's your accelerator pump has got a few holes in the diaphragm and maybe your slow jet is partially stopped up. If the bike has been sitting for an extended period of time, this is more likely the problem. The air mixture is not adjustable unless you or someone else has removed the "anti-tamper plug" that covers the idle mixture adjustment screw. And, only then if you or someone else has turned the screw. If the fuel air mixture has changed, it's something wrong inside the carb. I'd either take it apart and clean it or get someone else with the proper experience to do it for me.

Good Luck
Steve

Oct 22, 2010 | 2003 Harley Davidson FXD Dyna Super Glide

1 Answer

Where is idle and can I adjust it myself, on my 2003 dyna lowrider?


You can adjust it IF your bike is equipped with a carb. You may have to take the outer air filter cover off. Look at the top of the carb. Just to right of the round looking top is the idle stop screw. Clockwise to speed it up.

Good Luck
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Sep 15, 2010 | 2003 Harley Davidson FXDL Dyna Low Rider

1 Answer

99 dyna 88 cubic inch pops and whistles at idle ,engine noise and no fuel milage 40000 miles on engine,engine light stays on


If it'll whistle "Dixie", I'll buy it. (BG) No, if it's popping and whistling, it's probably got a vacuum leak somewhere. If it's a carbed engine, just look for an unplugged VOES vacuum line. It comes right off the backside of the carb. It might be time for a set of intake gaskets as well. If it's fuel injected, I can't help much there as I don't know a lot about those but if it's popping while idling, it's lean whether it's carbed or injected. If it's injected, you'll probably have to take it to a dealer.

Good Luck
Steve

Jul 09, 2010 | 2000 Harley Davidson FXD Dyna Super Glide

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In cool weather , it boggs at times


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