1985-1986 Honda ATC250R Shop Manual, Page 52Get this manual
FUEL SYSTEM THROTTLE CABLE Compress the spring and insert the throttle cable into the throttle valveI nsert the retaining plate into the recess of the throttle valve fully and secure with the retaining plate clipRETAINING PLATE CLIP
THROTTLE VALVE
RETAINING PLATE
LUG, GROOVE Align the lug on the carburetor with the groove in the connecting tubeInstall the carburetor connecting tu be bandsAlign the groove in the throttle valve with the th rottle stop screwInstall the carburetor topAfter installing the carburetor, make the following adj ustmentsThrottle lever free play (Page 2-10) Air screw adjustment (Page 3-14)Idle speed adjustment (Page 2-6)