Operation Manual

22 TECHNICAL DATA 133
Idle air adjusting screw
Open 1.5 turns
Throttle slide 4
22.10.5 300 EXC EU, 300 EXC AU, 300 EXC Six Days EU
Carburetor type MIKUNI TMX 38
Carburetor identification number TMX 38 78
Needle position 1st position from top
Jet needle 6BFY43‑74 (6BFY44‑73, 6BFY43‑73)
Main jet 100 (420, 430, 440, 450, 460)
Idling jet 17.5 (35/37.5/40)
Starting jet 50 (80)
Needle jet R‑8
Idle air adjusting screw
Open 2 turns
Throttle slide 4
Slide stop Present
22.10.6 300 XC‑W US, 300 XC‑W Six Days US
Carburetor type MIKUNI TMX 38
Carburetor identification number TMX 38 81
Needle position 3rd position from top
Jet needle 6BFY44-73 (6BFY43-73)
Main jet 430 (420, 440, 450, 460)
Idling jet 37.5 (35/40)
Starting jet 80
Needle jet R‑8
Idle air adjusting screw
Open 1.5 turns
Throttle slide 4
22.10.7 300 EXC BR
Carburetor type MIKUNI TMX 38
Carburetor identification number TMX 38 86
Needle position 3rd position from top
Jet needle 6BFY43-73 (6BFY42-73, 6BFY42-74, 6BFY43-74)
Main jet 470 (460, 480, 490)
Idling jet 35 (32.5/37.5/40)
Starting jet 80
Needle jet S-4
Idle air adjusting screw
Open 2 turns
Throttle slide 4