Ok, first of all from the pics, I have no idea what's missing, or what you need. I searched the parts book, but the way to book is layed out, it doesn't give any helpful pics. Since this cub didn't use this motor, it would just be luck that someone on here would have one of these motors and could help you. My suggestion is to pull that motor out. Sell it as running, and go find the correct motor for your tractor. Check with the sponsors at the top of the page, they may help you find a motor, or have one. Or post in the "wanted" section for a motor. Find the correct engine and we can more than help! Good luck!