Scag Kawasaki mower shut down while mowing. After replacing the fuel pump, the mower still wouldn't start. I found a blog that mentioned the fuel solenoid. I used an after market solenoid and it fixed the problem. The video could be better, but I accidentally deleted the original version. I hope the video helps you understand where the part is and how easy it is to replace.

21188-2011
211882011 part number