The Nigeria hitman took just five minutes to restore parity for Guangzhou R&F after visiting Shandong FC shot into the lead at the Yuexiushan Stadium on Sunday.
Wang Yongpo stunned the home side when he found the net just two minutes after kick-off, but Yak was to ensure that Shandong's celebration did not last very long.
Fired up by his goal, Guanzhou roared back with further goals from Rafael Coelho, who claimed a brace. Zhang Yuan scored an own goal in the 45th minute to make it 4-1 and Paraguayan import José María Ortigoza added respectability as it finished as comfortable 4-2 win for Yak and co.
Sunday's victory takes Guangzhou to 8th position with 21 points in the 16-team league currently led by Guangzhou Evergrande with 46 points from 22 matches.