In Our Riding Group There Are 2 300's, 1 07 Gasgas, 1 08 Pumpkin, 4 250's 3 Gasgas And 1 Pumkin And 4 200's, 3 Gasgas, 1 Pumkin. The 08 And 07 200 Gasgas's Run Out Of Gas When The Rest Of Us Still Have 1/3 Tank. The 04 Gasgas 200 Gets The Same Mileage As The Rest Of Us. We Are Riding At Sea Level Or Maybe 1000' What Kind Of Jetting Are You Guys Useing On The New 200's????? The Riding Is Mostly Technical Single Track,river Beds, And Hills. The Only Motor Mod Is A Ltr Power Valve Cover. Thanks Tom