I agree with MachineCult. People need to take the time and read the readmes and manuals that come with the game (or what ever else they buy).
Also, you need to make sure your jetpack is not overheated. After you use it for a little while, it overheats. Wait a minute while the fuel bar goes from redish back to bluish and fills up some.
(I may not agree with thoughts posted under this name)
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