Hi just want a preferably colour wiring diagram for the 400b, free, every link I find wants a sign up and credit card.

Check out the library section of the forum. Most of the wiring diagrams are going to be black and white scans of orbital manuals, but I find they’re pretty easy to trace.

Here’s the one for your bike yamaha-enduros.com/index.php/workshop/se...ctory-service-manual

A few members have edited the originals and you might find one by using the search function. I’m old school so usually just print them out and hit them with some colored pencils or highlighters.

I followed that link, it says error you are not authorised to view this page.