about 80mph
YES! The only difference between a 250 and a 250f is that one is 2stroke and the other is a four stroke.
The 04' Yamaha yz 125 puts out about a total of 33 horsepower.
39
Yes, a YZ 250 is a 2 stroke, a YZ 250F is a 4 stroke.
48
yes they are the same size
A 2009 yz 250f is 32mm
this should help you. http://tinyurl.com/msksw5
Stock it would be in the 45-47hp range.
1.0 L 1.2 L total quantity 1.1 with new filter Bye Victor Loayza from Bolivia
stock motor has about 28-30 horsepower