[sessiz10]

Okay 1st you're not mixing them up right? The 2.6 is orange and the 1.0 is blue.
There could only be two other things wrong.
1. You got a bum motor, try cycling it a couple of times (put car upside down and run the car dry) if there is no improvement return it or see if you can get a replacement.
2. The motor isn't making contact well with the car. The pinion can be off, not conecting well with the gear. The tab on the motor isn't making a good conection with the car hence not getting enough power. Spin the little tab around so that it's pointing towards the front of the car, and then try towards the back, and so on position wise.
I hope this helps.