Heavy clutch

Hi all just want to know if there is a way to soften clutch pull to 1 finger as I need 3 to pull clutch in to wheelie, is there different cables to buy I have tried short and long leavers,

Wheelie without it.
But if you modify it internally to soften it, it will slip easier. Kawasakis dont generally have the strongest clutch springs, so any softer and slipping will start

Don't like the feeling when power wheeling' with my bike in 1st I need to pin it full throttle and hit about 6500rpm before the powerband comes in and picks the wheel up, by this time I'm doing about 70kmh and that's too quick for my liking to start the wheelie, I want to finish it by that speed