The two sides met in the weekend’s marquee match to get the 2013 season underway.
Hekari quickly established their dominance over the national league newcomers with Nigel Dabinyaba putting his side in front after just ten minutes.
Port Moresby were swift to regroup and launched into a series of repeated raids into Hekari territory but the champions’ defensive combination of Kila Pokana, Koriak Upaiga, Daniel Joe and Pita Bolaitoga proved too strong.
Hekari’s second goal came after the break when Kema Jack tapped in a Clifton Aumae cross.
In the other match at Sir John Guise Stadium, Eastern Stars FC silenced their critics with a comprehensive 3-1 victory over the other league newcomers Oro FC.
Stars coach Max Foster says it was a difficult pre-season for his side with many players having left the club, but he was pleased those who stayed put could notch up a first round victory.
Striker Danny Banaba opened the scoring in the 33rd minute from a penalty before Emmanuel Popoitai equalised a short time later.
An in-form Patrick Aisa scored twice in quick succession to put his side back in front and secure the win.
At the PNGFA Academy, home side PNG Besta United defeated their visitors Welgris Highlanders 3-1. The match between Gigira Laitepo Morobe FC and WNB Tavur had to be called off due to bad weather.
For more on Papua New Guinea football go to www.pngfootball.com.pg