I have a toro 36'' with a 16hp kawasaki. Model 30074. Two days ago it was running fine with no problems. Today i go into my trailer to see that its leaking gas from the exhaust pipe where there is a bolt and clasp connecting the muffler and pipe. Also, the engine is very hard to pull (cant pull full thrust) and it wont crank over, and when I pull the starter rope, it sounds like gas is dripping in the muffler or somewhere in the engine. Anyone know what this could be? I cut off the fuel valve and it still leaks. Also, i changed the transmission belt a couple days ago too if that would affect anything.