Lego Technic 8838 + 8720 Technic - Moto Cross Bike released 1991 speed build+function + motorized - YouTube
Lego 8838 Motorbike x 2, 8207 Dune Dust Go-Kart, 8282 Quad Bike, 8034 Crane 3 in 1, 8840 Race Go-Kart all with instructions, 8842 Go-Kart with instructions available on line at auction | LOT-ART