Not to worry friend, when my machine go sick i avoided going to mechanic looking for DIY_Repair when I found this website
https://big-manuals.com/ and this book helped me repair it within an hour, all by myself!!!
From wiring diagrams, schematic illustrations, spark plugs info, parts info, chassis number, valve time settin gs, step wise instructions, torque specs, error/fault codes, engine info, to every single minute parts, you get everything in there you can't imagine how detailed it is