MacOSX Yosemite for ordinary PC Hackintosh 10.10.3 for Intel CPU
Mac OS X Yosemite 10.10.3
OS and system related | MacOSX Yosemite | 7 GB | English | DMG
Copy the Yosemite_final.raw file on the USB stick with the program that comes along.
Set the BIOS for a UEFI boot, and select the flash drive as primary.
Start the installation, select the flash drive in the boot menu.
For more doubt contact the Hackintosh World blog