I don't even know if you can buy new off-road toys that don't have chips - four wheelers, side-by-sides, snowmobiles and the like. Pretty sure they all use electronic fuel injection these days, and that requires at least one chip.
Even before EFI, almost all dirt bikes and snowmobiles built since probably the 1980s have had electronic ignition. You have to go pretty far back in time to find a vehicle of any sort with a points ignition that has no silicon/transistorized electronics in it.