1985 - 1986 Honda 250ES

Carburetor Specifications

 

Carburetion: 27 mm Keihin

Main jet: #130

Primary Jet: #45

Slow jet: #38

Starter fuel jet: 1985 #70 1986 #80

Pilot Screw Adjustment: 2 turns out from seated

Needle clip position: 2nd groove from top

Float Height: 18.5mm (.73in)

Idle speed: 1,400 rpm +/- 100 rpm

Venturi diameter: 27mm (1.06 in)

Throttle lever free play: 3-8mm (1/8- 5/16")

 

Note: information obtained from factory service manual.