I have a start button and would like to wire it through a charge lamp so the button can only work when the lamp is on , problem is the Busa has no battery charge lamp!!! any ideas? can one be fitted?

Why not use the oil pressure warning light instead?

Genius! I wish I had thought of that....

Sounds good, that's decided me to add a start button!

you will need a relay of some sort too but you knew that didnt you
Ray