Starting motor for 1 minute after every 2 hours
Here's a complete circuit using a dual 556 timer chip to obtain a long duration delay with a secondary short delay.  (Note the circuit drawing shows 565, but its a 556).  To get the short delay time correct refer to the 555 or 556 data sheet (link at the bottom) and adjust the RC values as needed.

http://www.electroschematics.com/9082/long-duration-timer/