Question on Dual flashing LEDs with 555 timer

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Joined Jun 6, 2018

I was looking for a cheap easy way to repeatedly change polarity of a 9 volts motor to make it move forward and reverse. Then I thought of a dual flashing led circuit using a 555 timer. I replaced one of the LED S with the motor. The result was as expected ; motor did move forward and reverse and the only led was blinking, doing its job. the problem is that the motor doesn't run with full voltage , there is reduce of voltage to the motor compared to the time when the motor is directly connect to the power source. Any way to apply voltage to the motor without loss ?
P.S i tested removing the resistor which was connected to the led , circuit didn't work