Tape the new cable to your old cable and pull it gently through if it gets stuck pull it back a bit and try again.
Make sure to get the marks on the throttle assembly under the cover lined up.
Regards Martin.

Thank you the set up makes it seem a bit harder then it is

It's a fiddly one. Have patience. Getting it located is the easy part. You'll need to remove the lower fairings.... at least the left side. Getting it seated and engaged with the semi circular actuator on the TBs is tricky.

Alright cool I'll give it a go