Mota, the laborer, is stuck in Death Mountain West Tunnel and needs someone to get him past the broken track.
Quest Location
Talk to Mota in Death Mountain West Tunnel (northwest of Sitsum Shrine) to start the quest.
How to Complete the Quest
Break the wall of broken rock near Mota to find some Zonai Devices, including some Rockets. Attach a Rocket to the back of the mine cart near Mota, then tell Mota to get into the cart. Jump into the cart and hit the rocket, and you will be launched across the broken track.
Quest Reward
Mota gives you a Large Zonai Charge.