73 turns over, but wont fire

[Matt4397358]

Hi all, I have my grandparents old 73. I replaced the entire wiring harness a few years ago, but after sitting for about a year, the engine turns over but won't fire. The spark plug has spark, just dont know where to go from there. If anyone has any ideas, or knows someone around the Pittsburgh area that works on them, let me know!

 

[dschwandt]

Gotta be fuel if you have spark.
Start with the carb, clean it and adjust it,
Use fresh fuel, make sure it is getting to the carb through a clean sediment bulb.
Spray a tiny shot of carb cleaner into the carb, it should fire
The 73 is a garden tractor built by IH.