Question about Harley Davidson XLH 1000 Sportster Motorcycles
Ok raise the rear wheel off the ground and put the transmission in high gear. Take the spark plugs out of the engine. Now, when you turn the tire in the normal direction of rotation, the engine should turn. If it doesn't, the clutch is slipping badly.
Remove the timing plug on the left side of the crankcases. Now, using a COMMON PLASTIC DRINKING STRAW, stick the straw down into the FRONT cylinder spark plug hole. Do not use anything other than a plastic drinking straw. If you use something made of metal, you may damage the piston. Something wood may break and you'll have to pull the head to get it out. Bump the engine using the rear wheel until the front cylinder piston comes as high as it will come in the cylinder.
Look in the hole and you should see the Top Dead Center timing mark. If you don't see it, move the engine slightly forward or backward until you do. Now that you've found the TDC mark, bump the engine BACKWARDS until you see another mark. This should the the Front Cylinder Advanced Timing mark. I think the piston should be something like 7/16" down in the cylinder at this point.
According to my manual, the TDC mark is a straight up and down line. The Front cylinder advanced mark is a "o" near the top of the timing hole and the Rear Cylinder advanced timing mark is "oo" mark near the bottom of the hole. The "oo" is commonly called the "lazy eight mark".
Hope this helps,
Posted on Jun 05, 2010
Testimonial: "Thank you a ton Steve I have been restoring this bike for just over a year and a half now and have been so anxious to get it running. Your information has been very helpful thanks again"
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Posted on Jan 02, 2017
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