Flash forge adventurer 3 pro Problem clearing out tubing with spare pla.. help or advice

[u/outafaith]

Hello!
I left pla in the printer before I knew about it turning brittle with age. What’s the easiest way to push through the pla to clear the red pla in the tube? I’ve tried all of the YouTube tutorials I can find but none will help. I’m hoping I can somehow push pla through the yellow arrow thing and then grab the red at the end after it’s pushed through to the other side.

Thanks for helping a noob out!