Flame On
Use the Firebomb Plunger then ride on Kimzee's Flying Machine.
Description
Alright <name>, we've saved as many as we could but now we need to make sure this disaster doesn't spread any further.
The firebombs are wired up and ready to go.
Kimzee just finished work on the flying machine so we're ready to ride back to the Gearworks as soon as we're finished.
You've done all the hard work so I think you should get the honors of triggering it.
Rewards
You will also receive:
Flame On https://www.youtube.com/watch?v=YhKtxzZKHvM
This quest is the end of the Pinchwhistle Point quest line, found at the bottom of Spires. There are no prerequesites beyond the previous quests for the town.
The flying machine is up on the platform and the plunger is right behind the quest giver. It can be hard to see if there are large mounts on top of it.