http://www.hdtalking.com/transmission_clutch_and_primary/3173-how_to_adjust_primary_chain_video.html
Try this website it is a video that features the 2003 road king, chain tighten and fluid change
Get the repair manual, follow the steps
Chain too tight
The primary oil does three things. Lube the clutch. Lube the primary chain . And cool the stator. If Harley thought Dextron would do this, they would have recommended the use of it. Keep your Harley a Harley.
You could find a Harley Davidson key chain at a Harley Davidson store. You could also find a Harley Davidson key chain at any website that would sell stuff online.
Older ones, yes. Newer bikes are belt driven to the rear wheel and chain driven on the primary.
Left side of engine commonly called the "primary" chain case side of the engine
The Alternator which is also called a Stator is located inside the primary case. You will have to remove the primary coverand the primary chain. The Stator is bolted to the engine at the crankshaft.
The most common cause is a grounded stator. Lack of primary oil or a too-tight chain can also cause excessive chaincase heat.
The primary oil goes in the clutch cover (derby) opening, or if you wish you can remove the oval-shaped chain inspection cover and pour it in there. Use one quart.
on my hd deluxe it is 7/8 max when hot. i think the manual says between 5/8 to 7/8 hot
Get a shop manual. remove primary cover and primary chain. Remove rotor. Unplug stator from voltage regulator. Remove stator. Reverse process to install. You will need a manual and an impact wrench... at very least.
www.hdtalking.com/transmission_clutch_and_primary/3173-how_to_adjust_primary_chain_video.html