Question about 2006 Harley Davidson FLHR Road king
I have a 2006 road king and brought it to the HD dealer near me for the first oil change, I had them put in the synthetic fluids.They run the bike on the dyno and burnt the pipes. Now the bike runs so hot I cant ride it more than a couple mile before it burns you leg from the heat. What gives? My 2006 Road King had the larger injectors put into it to help with the hard starting problem. They also remapped the fuel/ignition. My engine now runs very hot. Slow traffic burns my leg and I once got caught on the interstate with the traffic at a standstill. After about 5 minutes of sitting in traffic, the engine shut down. I've taken it back to the dealer and complained of excessive heat and a slight backfiring problem but they said everything was fine. I just needed to watch what brands of fuel I ran in it! I'm going to be taking it to another dealer to check it out.
First of all, you need to install a temp gauge as, even if your motor is running within the red-line (below 300degF, preferably lower than 280) the exhaust can still be several hundred degrees. Even if you add most cooling units that claim to lower engine temperatures, lowering your engine temp as much as 20-40 degrees may lower the exhaust as much as 100 degrees or possibly a little more however, lowering exhaust pipe temps from 5-600 degrees down to 4-500 degrees is going to help your engine but, it is still going to produce a lot of heat radiating to the human body.
Have you tried the heat diverter panels that fit on both sides of the upper frame. they are made to divert heat away from your legs. Also, most of the Harley drill teams use a heat blanket that does the same thing. It works a little better but, it doesn't look quite as nice.
I have a new cooling system that actually does work well and is designed specifically for the conditions you described and it has worked wonderfully. It keeps the engine cool enough that the rear cylinder cut-out never even actuates. It completely eliminated the engine overheating issues. None the less, it is still hot on me even though I never hit the red line anymore. If your interested, I can give you the product name. I'll check this site occasionally to see if you respond.
Heat is one of those negatives that are going to occur when riding on an air-cooled bike with a V-twin as the pipes have to be mounted high under the rider. There are a couple companies that claim to produce internal ceramic pipes that supposedly removes nearly all heat down the pipe and out the rear yet, they will be very costly and I haven't heard any actual feedback from anyone using them so, it would be an expensive investment that may or may not remedy your issue.
Wish there was better news. If I had actual oil and/or engine temps to go on, I could possibly give you a better answer. Good luck..................Erik
Posted on Jul 09, 2009
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Posted on Jan 02, 2017
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