butterfly valve

Hey guys, I've got an issue I'm hoping someone might be able to help me resolve. '86 HJ60 with a 2H. No EDIC because it's the Canadian spec so instead it has the butterfly shut off valve like the 12HT. The problem I'm having is on start-up. I've searched all over and I can only find problems...

The other day I wiped those on type material from my butter fly valve , I didn’t remove the unit . Now it cranks more before it starts, could the carbon type material of been sealing the valve ? Opinions would be helpful . It’s a facelift uk model