hi i recently bought a 1989 honda prelude si and it was running fine then a day or 2 later it didnt turn on any more so i changed the starter and nothing then the alternator and the battery posts and nothing but when i give it a jump with another car it turns on and i even installed a new batter but idk whats wrong with it can any one help?!?!?

many thanks
juan

 

Dirty battery cables.

 

make sure the ground batery cable is hook up right, make sure the cables are conneting right

 

ground cables.