Listen to Bill, not the lousy instructions written in Chingrish. One rubber goes inside the spokes, the other to the outside. In other words, sandwich the spokes between the rubber parts. And disregard the 16:1 fuel mixing instructions too. Start with no more than 24:1 then after a couple of tanks, move down to 32:1 gasoline to oil.
It would be better if these kits came with no instructions instead of the incorrect info that most of them give.
Tom