Question about 2000 Harley Davidson XL 1200 C Sportster Custom
It sounds like you have trash in your jets. The bike sitting for two weeks is not long enough to cause the problem and neither is the crossover fuel line in the front of the tanks. The cross over simply allows fuel on the right side of the "hump" in the tank to get to the left side where the petcock is.
Now, the petcock could be your problem. In 1996, H-D went to the vacuum operated petcock and have had troubles with them since. If you'll look on the backside of your petcock, you'll see a small tube that supplies vacuum to the petcock. Check and make sure this tube is properly connected on both ends.
If it is, you can loosen the petcock to drain the fuel out of the tank. Catch the fuel using a large funnel and an empty fuel can. Take the petcock out of the tank. Inspect the screen. One the backside of the petcock, there is a square plate with four small screws holding it. Remove the screws and carefully take the plate off. There are several small parts in there. A diaphragm, a needle and a small spring. Take the diaphragm and hold it up to the light and carefully stretch it. Look to see if a hole is in the diaphragm. If so, replace the diaphragm. When you reassemble the petcock, make sure all the fuel passages are clear. Personally, I suggest replacing the vacuum operated petcock with a high quality manually operated petcock such as a Pingel. I've seen too many people stranded with a full tank of fuel but none in the carb due to these petcocks.
Posted on Sep 29, 2010
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Posted on Jan 02, 2017
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