I know it's not a ruckus which I asked a question about it too but I have a s max and a t max I got from a cousin also a hummer nitro from a buddy and I cant get any of them to start except the t max and it idled for a bit and I tried to adjust the low speed needle but it died out and hasnt cranked since the two big ones from traxxas hve easy start and the hummer is pull start