pulled up went up a kerb my headlight went dim , then died completely , its a custom and i havent looked at it yet , is this serious , the brake light still works when the levers are activated but no running light when there not , and the speedo light occsionally works , any ideas , iv checked all the connections the fuses and that could it be the reg rec or the switch also does anyone have a PDF of the wiring diagram and manual for an 84 yamaha xs250

is that a dohc xs250? it being 1984

you need to double check them wires,

gunna be somat simple , when u went up the curb it proberly popped a conector if ur gettin dim and intermiternt lights then its prolly on the earth side check connectors inside the headlamp shell