Hi, I have an 88 RX7 N/A. A couple of days ago I went to start my car and it wouldn't even turn over. My battery is almost brand new so I thought maybe my starter was stuck (it's about 100 degrees outside right now). So I crossed the neg. and pos. on the starter. It spun so I tried to start it and it did. The next day I went out and it did the same, so I pulled my starter and took it to get checked. They said it's fine, so i took it home, cleaned all the connections and put it back on. It started fine a couple times but now it won't, unless i cross the starter again. Someone please help me!!

 

Replace main power wire to starter and also main ground.