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Join Date: Nov 2007
Location: Chandler, Arizona
I do mine every 10,000 miles, or as close as I can get to it. One thing I noticed about the Vulcan 750s splines is that they are shaped much differently than the older Honda Goldwing splines. The Goldwing splines are deeper, and the high points on them are much wider and flatter. That alone should make them much stronger. They look more like the output splines on an automotive transmission. Also the Goldwing REAR splines do not need to be lubed, they run in the oil of the final drive gearcase. There is an oil seal that keeps the oil from running out into the swingarm, which must be replaced everytime the driveshaft/gearcase are separated. Still not perfect, but better than what the Vulcan has. The GW has a separate U joint, with splines on both sides, which goes between the engine output shaft and the driveshaft. It still has to be lubed.
I am a motorcyclist, NOT a biker.
1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
2002 Vulcan 750 parts bike
1994 Yamaha XT225 parts bike