New Holland 650 Clogging, and very hard to start a bale

New to me baler, looking for some tips on what is causing my baler to clog when trying to bale brome grass. I've done some research about the starter roller possibly being the issue, but wanted to hear what others experiences are with this baler. Baler would constantly clog up when trying to start a bale, once you got the core started it would eat just fine and make great bales. Also when it would try to start a bale, it would constantly spit hay out the top in front until a core was started or it would clog. I would get so much hay up there it would get behind some of the rollers and cause a belt to start to flip. Hay was maybe a little dry, but the best way I could get a bale to start sometimes was super low rpm, 900RPM or so and decent ground speed. If a core would get started, rpm up and speed up to normal baling. Any and all advice would be greatly appreciated. Thank you.

New Holland 650 Clogging, and very hard to start a bale