I make sure the key is well punched and snuggle tapped down in the grove in the shaft. Then as I slide the rotor over the shaft, I gently wiggle it slightly left and right so I can feel it slip over the key. If I am not comfortable with it, I try again. Better than having to take it all apart again.
Gomotor, can you take a sec and describe exactly what you're doing to produce a "well-punched" key? I think I've been lucky, I never did anything to them and haven't had a problem. I'd like to understand just what you're doing so I can try it. Thanks.
Fast, good, cheap - choose two.
The Bluejay: 2009, EM 685 kit, Corbin seat, Wow LED tail light, rear DirtRacks bars, Shorai, Cee Bailey windshield, Superbrace, UNI air filter, EM Doo, KLX needle, T-Bob, de-snorkeled and box drilled, JNS bigfoot, skid plate, and aux light bar, SW Motech crash bars, Cycra hand guards, LeoVince X3, T-mod, Ernie Bell clutch arm, Cogent Pro Shock rear and DDC front, Galfer SS brake lines front/rear, MC Mod, Rox Anti-vibe Risers, Idabiker H7, many more...