First I'd suggest you remove the sprocket cover, clean the mechanism & ensure that the push rod is free to move. After you've put it back on and oiled the cable, you want to set your bar end adjuster to the middle. Now alter the adjuster on the sprocket cover till you have about 10mm of play/slack/soft movement right at the end of the lever. I.e before the cable becomes propperly tight.
Next start the bike up and take her for a 5 minute spin. This will warm the clutch plates up and you may need to adjust it at the bar end a tiny bit. This is why you set that in the middle when initially setting the correct tension as you can change it on the move to give either extra slack or more bit.
It's a delicate thing and over time you will need to slowly pull out the adjusters as your chain stretches futher and clutch plates wear.
My Virago 535 has a lot more slack than the my bandit's lever, but the clutch will engage much sooner (i.e with less lever travel than the bandit).
The last bit is to ensure the biting point isn't too far either way. If the lever touches the handlebar grips (or is close) when you're at the biting point it needs moving out, and vice versa if the cable is too tight.
This is getting rather long, so just adjust it to where you feel is a sensible position for you. Everyone is different and like it at slightly different places.