how do you use the bike pump? i gave it to an npc and asked it to but it doesn't work
Asked it to what? Anyways you can use the "use on/useon" command to use an item, then name a target. "me" refers to yourself, and "notme" refers to closest NPC, you can use the "help <command>" for additional details of a command and use "variant <command>" to see all synonyms of a command.
I'd like to know how you were trying to go about using it/playing it as I'd like to try getting the syntax to fit how most players may play :3