Question about Harley Davidson XLS 1000 Motorcycles

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I recently got a 74 sportster 1000 reverse controlls. sat in a garage for 20 years bike not ridin bike is complete. Im mechanically inclined but not very good with bikes. So my terms an wording is probly going to be off. I was told it was rebuilt, not sure why exactly but. i checked compresion ones (119 an others 145). I took the carb off cleaned it it gets good fuel. put a new battery in it twice which im noticing is comon in these forms.i switched what im sure is the coil off of a 82 that i have also that had spark just a little rougher of a bike. switched starters an replaced what i call the rotor by the timing plate had spark an had the bike running. buttined the the bike back up. now no spark. . very confused an frustrated. if you call or email me itd be a large help (814)380-3273 thanks dustin

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Your terminology is off a bit but I'm trying to figure out what you say you have done. To start, the coil off the 82 model is the wrong coil for your bike. Your bike has a points type ignition and requires a coil with a primary resistance of 5-6 ohms where the 82 model coil is for an electronic ignition with a primary resistance of 2-4 ohms. If you know how to check the resistance of the primary windings on the coil, check and see what you've got.

But, if you had the bike running and after you put everything back together, you evidently shorted out the points. Use a test light and check for power to the coil. If you have power to the coil, check the black wire coming from the right side of the coil down to the timing cavity. Take the plate back off the timing cavity and see if anything is grounded that shouldn't be. Use the starter to spin the engine over and make sure the points are opening and closing.

Good Luck

Posted on May 18, 2011


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