wow,i got my pull start[1st] from a Subaru, I ended up building 5 Subaru bikes from the first! I had to build more because everyone in my family wanted to ride with me.Can you believe that !They were easy yo build so why not? I really like the way the 2 strokes are built but it seems to me,they will cost more cash to build then to easily install a brand new 4 stroke engine/w friction drive/w roller.Oh,by the way,who rides a pocket bike?