how to link the throttle cable to carbs

[misty]

Hello All
Bit stuck on this part,i have the cable fitted to the pedal and ran it through the bulkhead and over the rocker cover on over to the r1 carbs , and this is where i have come unstuck ,left with a bit of cable and the problem i have is how do i take the slack out of it ,do i cut the cable back or should i leave it long and tie it off to take up the slack