so, i just bought one 05 yz250. The is sitting alongside my 07 yz250f until someone comes to buy it. I dug the end 2 restroom scales and also decided to weigh them. They space both stock no add ons. Come me, the 2t FEELS lot lighter dragging it turn off the stand and also such. Well, ns filled both gas tanks and also put them on the scale. 2t weighs around 231, 4t weighs 235! this is prepared to ride, full tank that gas. The 2t felt lot lighter climate 4 pounds, but what do i know? it even feels lighter riding, however i mean that is the extra horsepower..the funny thing is the 250f has 5 pounds the screws in the tires for ice riding, soooo, they weigh the same according to my test. Now, mine scales might be off, and using one on every side the the stand makes it no the many accurate also, yet those weights seem close to manufacturing specs. Ns think the 2t motor should be a tank and also the 4t motor is ~ above a diet