Small Engine Problems? Ask an Engine Mechanic for Answers ASAP
Unfortunately, the answer is no. The engines run clockwise when viewed from the flywheel side which translates to counterclockwise from the PTO side. There is a company called Noram that makes reduction gearboxes, but I do not know of one that reverses the direction of rotation. Here's a link to their website:http://www.noramclutch.com/reduction-gearboxes/
I wish I could provide an answer for you that would get you exactly what you're after, but without some custom modifications I don't believe that it exists.