Question about Harley Davidson Harley-Davidson Motorcycle Desktop Telephone

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My 81 shovel sounds and feels like it is fouling the plugs.

Once i get rolling after reving the bike to get going out of first, it runs like a champ on the highway it hauls *** til i have to stop and try to take off again.it pops and stutters til i get going. any ides ? it has a crane single fire ignition.

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  • Mel Jacobson
    Mel Jacobson May 11, 2010

    Have U checked the plugs ? Are they fouling ?

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The first thing I would look at is the accelerator pump in the carb. The original carburetor on your bike was a Kehin. The pump consists of a small cam, rod and diaphragm. Most likely the diaphragm has ruptured. Take the air cleaner off and at the bottom right of the carb there is a round boss the size of a quarter with a cast tube on top. Remove the 3 screws under the boss and a spring and the diapragm will fall out. Even if you don't see a hole, if the diaphragm is wet with fuel on the top, replace it. Hell, replace it anyway, it is not expensive. It is also possible the outlet plumbing is clogged. Spray some gumout through the discharge port (you will have to look at it from underneath to do this if the carb is still mounted) and it should exit at the little brass jet right in front of you. Make sure the tiny o-ring and the lip on the diaphragm are seated in their grooves when you reassemble it.

Posted on Dec 27, 2008

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