Those videos are impressive! Appears to require a much higher level of coordination than the way I ride bikes — which is grandfather style. Funny thing is, I’ve always ridden that way.
Did you use push starting on the outlaw kart? Or were they started with a handheld electric starter off the crank? I just got a compression release installed in the head.
Briggs were pull start, usually with a removable starter. 125cc class could be pushed by hand, but were usually pushed by ATVs, and the 500cc had to be pushed by ATVs. In a pinch, we'd use already started karts to help out, but the clutches were a booger sometimes, due to placement on or near the steering wheel, and half the time we'd have to start the first kart again.
The last motor I ran would allow me to pull a wheelie from coming out of the turn all the way down the straight, and into the next turn.
I'd have to tap the brake or blip the throttle to get the front down. It would do it more as the track came in with the blue groove.