2003 Kawasaki KLF250 Service Manual., Page 41Get this manual
3-4 FUEL SYSTEM Specifications
Item Throttle Case and Cable Throttle Lever Free Play Carburetor MakeType Main Jet Main Air Jet Needle Jet Jet Needle Pilot Jet Pilot Air Jet Pilot Screw Starter Jet Idle Speed Service Fuel Level Standard KLF250-A1 KLF250-A2 mm (0.08 0.12 in MIKUNI VM24SS #115 #120 1.0 1.8 O-6M O-2M 5GN64-1 5GN74-1 #30 #22.5 1.3 1.0 12 turns out 12 turns out #45 300 400 rmin (rpm) mm (0.20 0.04 in below bottom edge of carburetor body 22.6 mm (0.89 0.04 in Service Limit