Question about 2009 Harley Davidson FLHR Road King
After running in town freeway 3500 rpm shifting pings
Posted by Anonymous on
Hi Anonymous, start by switching to high octane premium fuel, Chevron, Mobil, Shell, ect. ethanol is not a friend of your engine. Use only Harley Davidson 20w50 Syn 3 oil. Install an oil cooler, engine oil temperature should be 180 to 220 degrees. Usual suspects for pinging are as follows:
1. Fuel octane rating to low.
2. Faulty spark plugs.
3. Incorrect spark plug for the type of service.
4. Excessive carbon deposit on head or in combustion chamber.
5. Ignition timing advanced due to faulty sensor inputs (MAP, CKP, CMP).
For a possible prime suspect please visit website below:
Harley Trouble Codes
Posted on May 02, 2015
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Posted on Jan 02, 2017
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