5 clicks but wont move till the third

[MAD-DOG]

I have a 5 solenoid cart there are 5 clicks but on the first and second click the cart wont move .But then it hits the third click and it goes like a bat out of hell.I checked the small terminal and all of them are getting voltage and it seams the small yellow wire is supplying the Negative for all 5 if the coils are broken will it run ?

Is there a ohms test to do on the coils ? What is the the large buss bar used for positive or negative voltage ??