McCloskey emphasized inspecting the entire starting system: the grounds, cables, relays and other parts. Make sure you have a quality battery that has plenty of cranking power. The H-D starter engages a gear on the starter clutch that is mounted on a jackshaft. The end of the jackshaft is supported by a bushing in the primary cover. McCloskey suggests removing the primary cover (drain the fluid first), taking the sparkplug caps off (so the engine doesn’t start), then hitting the starter repeatedly. If the engine spins every time, there may be a misalignment with the bushing in the primary cover. Also check the teeth on the starter, all the gears on the shaft and the ring gear on the clutch. If all the parts are in good shape, there is no play in the jackshaft and all the electrons are getting where they need to go, then you have done all you can. We’d suggest changing the starter clutch at the first hint of trouble. Then the bike won’t leave you stranded.