How do you do the timing on a Mazda 13B rotary after a rebuild of the engine?

To set the timing on a Mazda 13B rotary engine after a rebuild, first ensure that the engine is at top dead center (TDC) on the compression stroke for the leading rotor. Then, align the timing marks on the rotor housing with the appropriate marks on the front cover. Adjust the ignition timing, typically to around 1.5 to 2 degrees before TDC, using a timing light while ensuring the engine is running smoothly. Finally, double-check for any vacuum leaks and confirm the timing remains stable at idle.