Hi everyone, I have a MF 10 with a Tecumseh HH100 engine. Not sure of the year but it is in excellent condition with a mowing deck and rototiller. Anyway, I have it running but it runs rough and after warm up, if you turn it off, it will not start right back up. I've searched for parts, and even tried to find people in my area with a parts engine but I never get any responses. The points and point push rod is what I need the most along with a coil. Have any of you upgraded these engines with newer parts, or is it time to find a new engine that will fit in the engine compartment. I love this old mower, I love Massey Ferguson brand equipment, but what should I do? What would you do??