Onan 5500 Starts then stops after releasing button

krinderhagen wrote:
Also i had checked the brushes used some steel wool to clean the armature up a bit the armature did turn while cranking i had to remove the brushes to see it though

Steel wool particles are conductive,Use a non conductive commutator cleaner/resurfacer in a stick form to dressup the comm.
The steel wool particles can cause a flash over and/or a permanent ground situation. That's expensive.