Question about 2003 Harley Davidson FLHR Road king
Hi Chris, you have a detanation issue. This could be cause by bad spark plug ( fouled ) and fires intermitantly, plug cables, even a coil going south. Intake or exhaust gaskets failed or failing, residue at the intake ports or powder burns at the exhaust ports. Your electronic control module could be receiving or transmitting bad signal data due to a bad sensor the unit itself is failing, or my personal favorite bad wiring, loose or dirty connections in the ignition and or charging circuit. make sure your battery has at least 12.5 volts or better and charges at a rate of 14.3 to 14.7 volts DC when the engine is running at 3,000 RPM and most important of all battery connections are to be clean and tight. And bringing up the rear is loose connections at the circuit breakers. These are just the main characters in the laundry list show. Now I know this is all overwelming, so I have a little tip, try and retrieve any generated trouble codes by going to: http://www.fuelmotousa.com/harleycodes.html and see if they can help point you in the right direction. Good luck
Posted on Apr 20, 2015
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Posted on Jan 02, 2017
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