What every new member gets:
http://vmoa.net/VMX12-Service-Manual01.pdf
https://www.vmaxforum.net/threads/new-vmax-owner-faqs-new-members-please-read.21240/
The first 64 pp. of the factory service manual contain annual updates. After that, the area-specific chapters begin. Read the Appendix, it has nut/bolt/screw locations, sizes, and torque values, cable and hose routing, electric schematics, oil and water circulation, and more.
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Note there is diagram overlap.
The '85-'89 bikes have 5 wires for the electrical ignition pickups (there are 2 pickups) while the '90-'07 bikes have one pickup of two wires.
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Anything you need to do, use the search function to read-up on what others have done, chances are that any problems or modifications you have or are considering, have been dealt with successfully before.
I suggest adding your bike year and model (USA, Asian, UK, etc) in your signature so people can see what your bike is, to answer questions you may pose.