I acquired a rotor many years ago from a friend on the Micapeak email list. It was well under 5 ohms. 18 years on it, so far.
Jim is correct Scott, that rotor is for the DOHC Honda 4's. It was used on the cb750's, 900's, and 1000's, yrs 1979-83.Which CB750 is this for? The DOHC 750 from '79 up, or the SOHC CB750 built up till '78?
The DOHC 750 and 900 have a big following now, they'll always be looking for rotors.
Yeah, mine too. All my readings are after 20-30 seconds.All my meters drift down slowly for about 3-4 seconds before they settle when ohming rotors.