Update... Harbor Freight had a Christmas special coupon that offered the 212cc 6.5 hp engine for $99 which is the same price I paid online for the 79cc 2.5 hp. So, since I hadn't mounted or started the engine yet, I put it back in the box and ran it to Oklahoma City's HF store and exchanged it straight across for the bigger 212cc engine. Now I have a 3/4 shaft size engine with more power. The only reason I bought the 79cc in the beginning is because I had planned on going with a 4101 roller pump and the 79cc engine was capable of being paired direct (no gear reduction). I'm set now for a D252GRGI that accepts a 3/4 shaft.
8 years in the business.
Oklahoma Licensed Pesticide Applicator (3a)
2012 Hustler X-One 60", 26hp, Flex Forks, Mulch Kit