i have the bike mixed at 20:1 like the manual says but it is over bored and engine is new,it will start instantly if i bump it in 3rd and it will run great after that not much luck kicking it should i try 32:1 and lean it out a bit also it smokes a lot until the motor gets warmed up and cleaned out. it has factory jets and carb and a new choke from honda.thanks mike.