Question about 2001 Harley Davidson FXD Dyna Super Glide

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How to remove petcock from 2001 dyna

It won't come all the way out stops at top of fuel filter

Posted by Anonymous on


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  • Harley Davidson Master
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Hi Anonymous, just pull harder it will come out. Good luck

Btw, I’m available to help over the phone in case u need at

Posted on May 25, 2015


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Posted on Jan 02, 2017

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SOURCE: my 1998 Dyna has a small leak or drip coming from petcock

Sounds like you have a hole in the vacuum diaphragm that opens and closes the petcock. This is one of the problems with the vacuum operated device. The other problem is that sometimes they don't open and you're left stranded with a full tank of gas and not a drop in the carburetor. I changed to a manual operated petcock. Personally, I'd rather have a Pingle petcock than another vacuum operated Harley petcock. If you do change to a manual operated petcock, don't forget to plug the small vacuum hose.

If you want to keep your vacuum operated device, I think you can buy a replacement diaphragm. You will have to drain the tank and remove the petcock. There are four small screws on the backside. Remove the screws and the backplate will come off. The diaphragm and a sping is all that is in that section of the petcock.

Posted on Apr 01, 2010

  • 98 Answers

SOURCE: the check engine lite won't

Chances are the PC created a trouble code that has not been cleared.

Use your speedo to check for codes.

1. With the bike off, push and hold in your odometer reset button.
2. with the button pressed, turn the ignition on, make sure your run/stop switch is on.
3. your speedo will do a sweep and when it comes back to 0, let your finger off. You should see a variety of letters, PSS ect. if you push the button briefly you can toggle between letters, you need to check every letter. So when the letter is blinking, press and hold the button untill the screen changes. Codes will show up as P0112 or B1110 ect. keep pushing the button untill you have all the codes. You will know when your done with the letter because it will show a part number, Example, P/N 19999-03 ect. Once you go thru every letter like this, writing down the codes, you can look them up online as follows: Harley DTC P0099 ect.
4. If no codes are present, it will go staright to the P/N. and you can click out of that to the next letter.
5.To clear the codes at this point, while you are looking for codes under the different letters, Simply press and hold the button, once it shows you the code.

So show the code, press and hold button till cleared, then press and relese button quickly to move on to the next number.

If after that, you turn the ignition off, then back on like normal, and the light should come back on shortly, but, once you start your engine the light should be off.

Posted on May 12, 2011

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2001 Harley Davidson FXDWG Dyna Wide Glide will not idle

Hi, Mike please contact me at the email address below to discuss the bottom pump otherwise the usual suspects are:
1. Idle circuit and transfer ports clogged.
2. Air fuel mixture adjustment too lean.
3. Pilot jet clogged.
4. Faulty accelerator pump.
5. Float level too low.
6. Float bowl contaminated old fuel, water, dirt, rust, etc.
7. Float bowl vent or overflow tube clogged.
8. Fuel flow to carburetor restricted.
9. Intake manifold leak.
10. The gas cap is not venting properly or fuel tank venting system blocked.
11. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
12. Needle and seat stuck closed in the float bowl.
13. Multi carburetors not in sync.
For more information about your issue and valuable "FREE" downloads that you will need for viewing and printing please click on the blue links below and for more specific information or questions at no charge please feel free to contact me at Good luck and have a wonderful day.
It won idle
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Jul 31, 2017 | 2001 Harley Davidson FXDWG Dyna Wide Glide

1 Answer

Fuel pump cycling long time bike won't fire,has good spark.

Hi, Anonymous and the usual suspects are:
1. Fuel tank empty.
2. Fuel supply valve/petcock turned off.
3. Fouled spark plugs.
4. Engine flooded as a result of overuse of the enricher.
5. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
6. Fuel valve/petcock or filter clogged.
7. Discharged battery, check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
8. Loose or corroded wire connection at the coil, battery or plug between ignition sensor and module.
9. Spark plug cables in bad condition and shorting, cable connections loose, or connected to the wrong cylinders.
10. Ignition timing incorrect due to a faulty ignition coil, ignition module or sensors (MAP, CMP, CKP, O2 and/or BAS).
11. Security alarm needs a reset.
For more information about your issue and valuable free downloads that you will need please visit the websites below. Good luck and have a nice day.
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Mar 14, 2013 | Ducati Motorcycles

1 Answer

Acts like its not getting fuel on a dyna low rider 2006

If the bike is equipped with a carburetor, check the fuel flow from the petcock. In 1996, Harley went to a vacuum operated fuel petcock on the fuel tank. The diaphragm gets a hole in it and it will no longer open and allow fuel to flow. Pull the fuel line from either the petcock or the carb. Spin the engine with the starter and watch the fuel flow. If it's fuel injected, I'm sorry but I can't help you with that one. I know nothing about Harley's fuel injection.

Good Luck

Aug 13, 2011 | Harley Davidson FXDL Dyna Low Rider...

1 Answer

Wont start has spark will fire with carb spray was lookn for carb adujustments

If your bike will fire with carb spray, you need a lot more than a simple adjustment. I suspect that you are not getting fuel to the carb. While you have the air filter off, look just inside the mouth of the carb and you'll see a small brass nozzle sticking up. With the engine OFF, twist the throttle grip to wide open throttle position. You should see a stream of fuel squirt into the carb. If not, you don't have any fuel in the carb or the diaphragm in the accelerator pump is bad. Next, pull the fuel line off the carb or the fuel petcock. Crank the engine over and watch the fuel flow from the fuel hose. If it's weak or none, your petcock is bad. In 1996, Harley went to a vacuum operated petcock and they give problems. The diaphragm in the fuel petcock will go bad and you'll have a full tank of fuel but none gets to the carb.

Good luck

Aug 09, 2011 | 2000 Harley Davidson FXD Dyna Super Glide

2 Answers

I have a 2001 XL1200 Sporster and it just died one day while riding. If it cooled off, it would run for a little while and die again.

Have you checked to see if you have fuel IN THE CARBURETOR? In 1996, Harley went to a vacuum operated petcock and they've had troubles with them. The diaphragm in the backside of the petcock gets a hole in it and it doesn't allow for a full flow of fuel. Ride the bike with the air filter off until it quits. When it quits, look into the mouth of the carb with the engine not running and crank the throttle grip to wide open throttle. There is a brass nozzle standing just inside the mouth of the carb. When you crank the throttle grip to wide open, you should see a stream of gasoline squirt into the carb. If not, the carb has no fuel in it even though the fuel tank may be full. You'll have to drain the tank and remove the petcock. Take the plate off the backside and take a look at the diaphragm. Gently stretch it while holding it up to the light and check for holes. Personally, I'd replace the petcock with a high quality mechanical petcock and plug the vacuum hose. You'll have to manually turn the fuel on and off old-school style but you won't have anymore petcock problems.

Good Luck

Aug 03, 2011 | 2001 Harley Davidson XL 1200 C Sportster...

1 Answer

Fxstb night train starts then dies like no fuel

It might not have any fuel, in the carb even with a full tank if it's carburetor equipped. In 1996, Harley introduced a vacuum operated fuel petcock. These things give problems in the fact that they get a hole in the vacuum diaphragm and will not open allowing fuel to flow to the carb. Take your air filter off and WITH THE ENGINE OFF, crank the throttle grip to wide open. When you do this, watch the accelerator pump nozzle, the brass thingy just inside the mouth of the carb, to see if it squirts a shot of fuel into the carb. If it doesn't, you're float bowl is dry.

You can repair the petcock by draining the tank and taking it out. Remove the square plate from the backside. Take note of how the parts are placed in the petcock. Remove the diaphragm and hold it up to the light while gently stretching it while looking for a hole. Personally, I'd rather replace the petcock with a high quality manually operated petcock. You'll have to turn the fuel on and off old school style but you won't have any problems with the petcock anymore. You'll have to plug the vacuum hose as well.

Good Luck

Jun 10, 2011 | 2002 Harley Davidson FXSTB Night Train

1 Answer

I've adjusted the float and checked the needle seat [found gas in my oil ] but will not start-checked for spark thinking that it has jumped timing how do I check timing? also what about vaccume on...

The timing on your bike is set automatically by the computer and cannot "jump", not even on the older models. There is a crankshaft position sensor on the left front of the engine case that senses the position of the crank. Since your bike is equipped with a carburetor, it has a fuel petcock. This petcock is operated by manifold vacuum. The vacuum line connects to the backside of the carb. Make sure it is connected at the carb and to the backside of the petcock. To check the petcock, you must have a hand operated vacuum pump. Disconnect the fuel line, connect the vacuum pump to the vacuum nipple on the backside of the petcock and apply vacuum. Fuel should run out of the fuel line. If not, you need to replace the diaphragm in the petcock. Personally, I'd replace the petcock with a high quality manual petcock like a Pingel. You'll have to turn your fuel on and off manually, old school but it won't give you any more trouble.

You can take an oil squirt can and put some fuel in it. Remove the air filter and squirt a couple of shots of fuel in the mouth of the carb. Try to start the engine. If it starts or fires a couple of times, then you know the spark is fine. If you get the engine to run long enough, it will allow the carb to fill with fuel and it may run on it's own then.

May 09, 2011 | 2006 Harley Davidson FXDLI Dyna Low Rider

2 Answers

Where is FXDL dyna low rider gas filter located ?

It doesn't have a filter, it does have a screen and it's located in the fuel tank. If your bike is carb equipped and has a petcock, take the petcock out and the screen comes with it.

If your bike is fuel injected, you have to take the pump out of the tank.

Good luck

Oct 06, 2010 | 2005 Harley Davidson FXDL - FXDLI Dyna Low...

1 Answer

What is the process to remove the carburetor on a 2001 Dyna Super Glide FDX. Thanks in advance.

To remove a carburetor, first turn the fuel petcock off if it has an "off" positon. Then take the air cleaner cover, air filter, and air cleaner backing plate off. Loosen the adjustment on the throttle and idle cables (the two cables). Loosen the nut on the enricher cable and allow it to come out of it's bracket. Disconnect the fuel line and the vacuum line for the VOES and the petcock. Now, rock the carb side to side and pull it out of the carburetor intake seal and guide the enricher cable out. When you replace the carb, always use a new carburetor intake seal to prevent vacuum leaks.

Good Luck

Sep 06, 2010 | 2001 Harley Davidson FXD Dyna Super Glide

1 Answer

I have a 2001 dyna low rider. This winter I took the tank off to paint it. I put everything back together and fired it up and got a block before it shut down. I got it back home and checked the fuel lines....

It sounds like the carburetor is running out of gas. If you have the original petcock on the tank, you MUST have the vacuum line connected. When the engine starts up, vacuum from the carburetor is applied to the vacuum diaphragm in the petcock and opens the petcock. Without vacuum on the petcock, the only fuel you will get to the carb is if the needle valve in the petcock leaks.

Now, you said you had the tank painted. This is the clue. Painters pay a lot of attention to the outside of the tank but NONE to the inside. I would guess that the screen on the inside of your tank is completely blocked with small chips of paint or sanding material.

Replace the vacuum operated petcock. It's a "Motorhike" waiting to happen. A "motorhike" what you do when your bike quits and you wind up pushing it. I've seen too many of these things leave people stranded with a full tank of fuel but not a drop in the carb. Replace the OEM petcock with a high quality manually operated petcock like the old timers use. A Pingle is a very good choice. If you want to save a few bucks, check on the price of an OEM petcock for a 1995 or earlier model. Block the vacuum line off and I'd advise an inline fuel filter. Buy the sintered metal type filter that can be cleaned. These filters come in Chrome, and a few anodized colors as well.

See if this helps.

Jul 14, 2010 | 2001 Harley Davidson FXDL Dyna Low Rider

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