I inherited an older snapper riding mower, It has not been run in about 3 yrs. I have replaced the plug, cleaned the gas tank, changed the oil, and replaced the battery. It will turn over all day long, can smell gas and cranks harder when you put on full choke, but nothing. I have noticed the neg cable on the battery that grounds will heat up and smoke a little when craking. any ideas?

billy, July 2009