Out of nowhere, one day it starts right up the next week it will only crank. What is the number one thing I should look at before unloading my bank account on parts I dont need? Like I said it will sit there and crank for 30 seconds but wont fire. Thanks in advance.

 

You need three things for the engine to run, air, fuel, and spark. First make sure you have all 3.

 

^ This is what you need to check