Was that 11 Hp out of the box?
I was looking at a 13hp from Harbor Freight, and may get one later this spring, as I was thrilled with the performance of the 6.5 Greyhound motors, I've had 3 now, and all 3 fired on the first or second pull, right out the box, of coarse I had to add the gas and oil, but I'm wondering if those bigger HP motors are more difficult to start??? I like your Idea of 11 horses pulling a cart, kind of like a Tim Allen thing,, MORE POWER!! urah!! but you may want to consider going from the clutch to a kind of like jack shaft 36 tooth sprocket then that would have like a 16 tooth sprocket welded to it ant that goes to another 36 tooth sprocket on the drive wheel, first time I saw that set up was on my Manco cart that I traded for last summer, and let me tell you that thing has all the power and speed that cart needs, I have the drive sprocket in the shop for repairs, and I'm picking it up on wednesday, so I can't post a pic of it yet, but will, maybe this weekend, I kind of want to get the cart running, maybe I'll get a chance to chase away some of this God Forsaken snow we got here in this tiny little town of Bellville Ohio, the boys are coming down this weekend and I hope to have some fun with them and the carts, hurry up and get that thing going, I see you have a few of us wondering what it will do?? bet one thing tho, I'll bet you're grinning from ear to ear after you ride that for a while!!!
Dave