Thats funny you say that about the reserve ......No they dont work ! I had another guy at the dunes tell me that the reserve on his son's Eton 90 dont do nothing! ....I really dont think the carb would help me much on the fuel savings ...my son will still have it wide open...(lol) I will look into a bigger carb after i port the cylinder. On my yfz450 i got 2 hp boring my carb from 39mm to a 42mm . Im just not sure hp wise how much is to gain.

The eton was really easy to jet .....the only thing i really changed is the main jet ....i also tried the clip in the 4th notch and a 110 jet ....that worked also .