RD400 Parts Catalog - 2026 Edition

[NYSingh]

Hey all - in the process of (re)re-doing my bike and cataloguing parts, I've been putting together a spreadsheet version of the parts catalog.  I've been trying to add more detail to it, such as measurements of bolts, washers, etc, and more detailed notes on parts.  It's far from perfect, but figured it was good enough to help some folks out and to get feedback from people on this forum.  On the first "Parts Lookup" tab, I made a simple lookup where you can select the component (like "Crankcase") from the drop-down menu, and it auto-populates the parts for that component and some information about them, as well as auto-loads the parts diagram.  I went through each fiche diagram from the PDF that's been floating around, uploaded it to Gemini and told it to make them clearer - surprisingly, it did a pretty good job, although once in a while it'll do something weird like add a washer where it doesn't belong.

Anyways, hope this helps out some folks, and happy to hear any feedback!  And more importantly, as you go through your projects, if you happen to measure a part, or have details to add, feel free to add it to the Master List tab!

https://docs.google.com/spreadsheets/d/1Qfo0v-9xdP1cGrxACY50m9vLOTES56n2jHQphq17rsE/edit?usp=sharing

[SmokeAddicted]

How do you fund your Adderall addiction? 

Seriously though, I think that's pretty awesome you took the time to make something like this, and willingly provide it to the world. I think something like this is an amazing resource for guys just getting into this hobby. Very very cool idea. Bringing it into the digital age vs searching for fiches that aren't easy to find. Good on ya man 🤙🏼

[85RZwade]

Great resource!