I have a 1995 vulcan 750cc, the head light don't come on

You can first of all check the universal type with a +B on the one side and the body grounded to give the output at the center. If this is tested on the left and right sides then the flasher unit can be used. Otherwise there are many models of this type that will work with +12.Try the electronic types.

Check all your bulbs, and make sure they all have indicated the same Watts.

Getting those fuse bricks out can be tricky. I have a 2000 800b ( classic ).

I had to remove the battery, then there is plenty of room to slide those bricks out towards the front of the bike.

Might want to pick up a manual. Lots of good info in there, and worth every penny the first time you try anything. It would also have a diagram and diagnostic for your lights being out.

check fuses first... if ok, buy an electrical tester from walmart for $5 and see if it's getting any electrical to the headlight.. if it is.. replace bulb

It's at least a good starting point.

you can remove the head light bulb, power the bulb with a charger or check it with voltmeter. if bulb is good, make sure the ground is good on the light housing. if fuses are good, could be the actual switch on the handlegrips

check the head switch tht could be the culprit!

rebuild carb