The rotor was missing the install screws. Other competitors provide screws with the rotor. I had to go buy the screws at a hardware store. I could have returned the cap and rotor set but that would have caused more delay to my project.
Not Made in USA! Made in China Acell junk! Cracked and engine began missing after 50 miles. Do not buy! Buy a Taylor cap they are higher quality and Made in the USA!