The motor is the NGH 38cc gas four stroke. I am not to worried, it was a bear to get started out of the box. But once it ran a few times, it was easy to start. I also ran the Saito 2.20 for the first time this year. Man, do I love that motor. 6 years old, it turned 72-7400 wot and 2200 idle with a Xoar 20 x 8 prop.