If the lever feels soft, it sounds like you got air in the system. When was the last time the system was bled and flushed ??
You can try this, Get you self a small piece of wood maybe 1 inch long and 3/4"x 3/4". Can be anything that will give you a 3/4"spacer. Place one of the 3/4" sides against the grip, pull the lever in against the block and tie in place. You should now have 3/4' between the lever and the grip. Let it set over night. The bike should be on the center stand front wheel turned to the right. This is a self bleeding technique that can also be used on the brakes.
Keep us posted on what you find.
No you don't have to open anything up for this to work.
I've used this method more then once.
What color is the fluid in the site glass if it is dark it's time to flush the system.
If this is a new to you wing. It wouldn't hurt to flush and bleed the brakes and clutch