Ford Laser Engine Not Cranking Over

Hi, My Car Suddenly Would Not Turn Over, I Was Told It Was The Starter Motor Which I Reply It Still Nothing. There Is Power To Ignition And...

I Have A 1996 Ford Laser K,j,2. (1.6 Twin Cam) Runs Great When Cold After 5 Min Power Dies ,rev Counter Drops To 0 Lights On Dash Come On....