Question about 2004 Harley Davidson FLTRI Road Glide

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While driving motorcycle stalled.

Tried starting ,cranks but does not start. Has a half tank of gas.

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Sounds like you've lost either spark or fuel. Take another set of spark plugs and plug them into your spark plug wires. Do not remove the plugs from the head. Spin the engine and watch for spark. If no spark, first check the "run/start" switch. If it's alright, you need to check the fuse for you ignition system to see if it's blown.

On fuel injected engines, you have a fuel pump. Check the fuse for the fuel pump. Listen for the fuel pump to run when the switch is turned on.

If you bike is carburated, check the petcock. In 1996, H-D went to a vacuum operated fuel petcock. These things are notorious for giving problems. Either the diaphragm gets a hole in it and shuts off the fuel or the vacuum hose comes loose. Check the vacuum hose that comes off the back of the carburetor and runs to the VOES switch and the petcock. You may have to remove the petcock to service the diphragm in it.

If you remove the petcock, there are four small bolts on the backside. Remove the four bolts, lift the plate and theres a spring and a diaphragm behind the plate. Check the diaphragm for holes. If you find hole, replace the diaphragm. If not, replace everything and test the petcock by applying vacuum to the rear of the petcock while blowing though the fuel line nipple. When you appy the vacuum, the petcock should be open. With no vacuum, petcock should be closed. Good Luck, Steve

Posted on Apr 28, 2010


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