It is normal...... the oiling system for HDs since 1984 have been vented out the heads, into the aircleaner. Tha oil vapors collect in the aircleaner and at higher speeds, (70+) they accumulate and rather then get sucked into the carb, as they were intended to to meet EPA requirements, the vapors collect a bit more, and tend to overload the filter element with oil deposits, that may drip/vent out, and onto the rider/right side of the bike.
My Evo used to do it, until I installed an Arlen Ness Big sucker air cleaner. It vents the head/oil vapors directly into the carb's venturi, and not just into the aircleaner housing, like the stock unit does.
Drips are gone.
Quote:
Originally Posted by lb2910
I change my own oil using Amsoil syn 10W40.
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Correct me if I'm wrong, but you should be using a MINIMUM of 20w50, not 10w40..... too thin.
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