Reply To: Aquila gv250 efi starter solenoid help Oct 23, 2024 at 7:08 PM #15314 Bianca👤 Member🖊 Topic Author Topics: 2Replies: 8 Going to put oxygen sensor,spark plugs first then solenoid ,battery then fuel tank. Took it off to clean it was rusty..might have to give it one more cleaning. â¤ï¸