There are two screws on the carb the top one goes 1.5 turns from all the way in unless it is bored out and the lower screw is used to adjust the idle speed a 2storke should barley Idle when warmed up all the way.
how do you change a water pump on a 1985 Yamaha yz 250
twist the top of the choke, there is no idle screw on the 1999 yz250
Yes, a YZ 250 is a 2 stroke, a YZ 250F is a 4 stroke.
NO
2001-2012
Want is the engine oil capacity for a 2000 Yamaha yz 250.
Anything from 1998 to 2005 should work
what year models can i use parts from to fix my 1992 YZ250
NO
The year spand cuts off from 03 to 08. and 99 to 02.
it probably wont line up correctly with the top end
The engine displacement (size) is 250 cubic centimeters