Anything from 1998 to 2005 should work
No a 125 frame is too small to fit a 250 motor but with a cutting torch and a welder anything is possible.
NO
yes it can i have done it
what year models can i use parts from to fix my 1992 YZ250
The year spand cuts off from 03 to 08. and 99 to 02.
it probably wont line up correctly with the top end
YES! The only difference between a 250 and a 250f is that one is 2stroke and the other is a four stroke.
Yes, you're good to go with it, they are the same part.
yes it does fit but u mite have to get new motor mounts for it but that about it, it should mount rite up then
only if you are jesus and you plan on working a miricle
i have a 95 cylinder on my 94 and i havent hade any problems in the last 3 months and i ride atleast 2 hours a day