could not figure out to answer. 243 post of seised up ..Iv been using marvel 25 yrs .love it always use cant ware motor out. but my experince on seised moters had acouple I pulled plugs filled each cylinder as full as could let set a few days then rotate over . drained put in2 qts to remove more rust and gunk and full qt in fuel tank fired off run veryfast idle about ! hr .drained and then run recomended amounts no problems

Why in the world would you fill each cylinder? That’s way overkill. You just need enough to loosen the stuck rings from the cylinder wall.