Vibrations from the front wheel

Check the wheel is spinning true.
Check the brake discs are not bent.
Check the front wheel bearings have no sideways play.
Check the front tyre for uneven wear.
Get the wheel and tyre balanced.
It may need a new front tyre if all the above points check out, even if the tyre look good.

The first four you can do yourself by jacking the bike up and spinning the wheel, then hold a pencil or chalk etc near the side of the wheel and disc to check for wobble.
See a bike shop for the balance or new tyre

Well you asked for this!!!!
check the fork bushes for any play and that they move freely no jumping about,,,,check the wheel bearings for play,,,heck the head race bearings for play and that they are free to turn with out being *****,
check the swinging arm bushes,,,now if all this is good,,,have your wheel balanced

If your motorcycle has tubeless tires you might try installing 2 ounces of balancing beads to see if that cures the problem. It is the least expensive solution to try. I use them in my Goldwing and they work great. My tires are constantly balanced.