Fuel injector question

Hey guys. I wasn't sure what injector is on my kitaco 181 build so I ordered a pcx150 injector. When I installed it the bike would crank but would never start. When I put the old one back it starts normally. The one already installed has 6 holes so I'm not sure if it's OEM or not. The one I ordered is in the pic below any idea what going on?thx