Question about 2002 Harley Davidson XL 1200 S Sportster Sport

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2002 sportster runs 20 minuits then stops . no fire at spark plugs if i let it cool a couple hours it starts and runs good for about 20 minuits the only other thing i have noticed is the tac needle bounces a lot at idle .

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I sounds like you may be having a problem with you ignition unit. It is located in the timer cavity down on the right side of your engine. The plate may have rivets in it and you'll have to drill them out. To recover the timing cavity, simply buy a nice plate and put it on with screws.

Now, the reason for taking the plate off is to diagnose your problem. The ignition unit may be getting too hot and causing a problem. Of course it shouldn't but if everything always worked as it should, nothing would ever break. Just removing the plate might be enough to solve your problem. If not, stop by an electronic's supply shop and buy a small aersol can of "component cooler" and carry it with you. The next time the bike quits, spray a little of the stuff on the electronic unit to cool it off. Do not use ether unless you want to burn yourself and your bike up. Component cooler is non-flammable. If the bike starts right back up, the ignition unit is failing due to heat and needs to be replaced before it fails completely.

Ride Safe
Steve

Posted on Aug 24, 2010

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