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Old 08-05-2009, 09:42 PM   #1 (permalink)
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2005 Roadking

Have a stock 2005 Roadking with Rineharts highflow aircleaner and of course the download bike ran ok up till now was on it the other day now it seems to lug and ping any ideas cause I am fed up.
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Old 08-06-2009, 03:38 AM   #2 (permalink)
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Have you checked your rear valve guide seal? They are known to go bad on that year model. Pull out the rear plug, if it's fouled then you know why.

Are you using premium fuel? The higher the octane the better with pump gas.
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Old 08-06-2009, 07:01 AM   #3 (permalink)
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Pinging can be due to heat, or due to running lean, or both. (Lean=heat)

Like Ed suggested, run the highest octane pump gas you can find, and see if that helps. If not, you may have to remap, or get it mapped richer.
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