Where are the Jak 3 precursor orbs located

The best advice is to just look for them. If you familiarize yourself with the game layout and learn about the little nooks and crannies that the orbs are hidden in. Many orbs are put right in front of you to be earned from the oracles and its easiest to start there, beating all the challenges presented by the orcales scattered through the maps



You can get 50 orbs buy going to the secret shop and buying the unlimited light jak. Then hit L2+X to get flight JAK; do the things were you need to find the hidden location or the ring challenge, next while in FLIGHT JAK doing the challenge hit L2+square to slow time down but you move regular pace. If you keep doing this, you can complete all the challenges. But do not get on the lizard or hover board when doing this technique as time will move at the normal pace and it will be pointless.