Broken Choke Knob

[Whunter]

I'm riding a 2008 Nomad and I know this is Fuel Injected so I don't really have a choke. But, there is a knob on the left side of the bike that acts like a choke. I have pulled this knob out during cold starts and it seems to help get the bike to have a higher idle until it warm s up. The plastic housing recently broke and it has made the pulling this cable out much more difficult. My question 1) How hard is it to fix this? I'm not much of a fixer upper. 2) Should I even bother with fixing this?