With the engine cold, remove the wires from the spark plugs, then use a spark plug socket to remove them. Set the gap on the new plugs at 0.040 (forty thousandths). Give the threads a light coating of anti seize and install the new plugs. Re-install the wires and you are done.
SOURCE: 2003 Harley Davidson XL 1200 C Sportster Custom
I would guess stale gasoline or fuel. Try fresh fuel in the tank. If this doesn't clear the problem, you could need to have your carburetor or fuel injection system cleaned. I'm not even sure if they put fuel injection on Sportsters since I don't work on fuel injected bikes. I mostly work on the older bikes like Panheads, Shovelheads, Evos. Not too many Sportsters but have worked on a lot of Ironhead Sportsters. Try the fuel first. It's a cheap fix. Hope it works for you. Good luck with the knee replacement. My wife had one knee replaced and it works great.
SOURCE: oil drain plug
Follow the hose that goes to the frame from the oil tank. Loosen the clamp and pull.
SOURCE: what is the proper motor oil for a 1200 custom sporty
Personally ....as a mechanic....I would recommend Amsoil 10w40....check it out?
http://www.amsoil.com/storefront/mcf.aspx
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I thank you for your reply. But I was told there are 4 spark plugs on my 02 harley sportster 1200. And what I what to know is... Do I have to remove the gas tank to get at the 2 plugs, and how hard is that to do?
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