Stubborn Generac Generator Refuses to Start After Replacing Mixer Assembly

In this video we embark on a seemingly simple repair. The objective is to replace the mixer assembly on a 20kw whole home Generac generator. Installation goes smoothly, but something is still very wrong. Join me as I struggle to figure out why this generator simply refuses to start.
Chapters
00:00 - Intro
01:18 - What Went Wrong
03:22 - Installation Overview
05:12 - Installing Stepper Motor
06:45 - Mixer Assembly Install
16:46 - Fuel Line Connections
15:51 - Starting Attempts / Troubleshooting
20:46 - Oil Change
22:31 - More Troubleshooting
27:36 - Possible Discovery
27:59 - Full Disassembly
33:09 - Gasket Installation
42:56 - Reassembly (Again)
50:36 - First Start!
52:20 - Outro
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