Yamaha BANSHEE 350 YFZ350A Owner's Manual page 103

Carburetor setting chart
Temperature
Main jet
Above 0 °C (32 °F) #200
from +5 °C (41 °F) to
#220
–15 °C (5 °F)
from –10 °C (14 °F) to
#240
–30 °C (–22 °F)
Changing the settings of the carburetors
To change the settings of the carburetors, you
need to disassemble and remove them. Follow the
procedures for both carburetors.
Disassembling and removing the carburetors
1. Turn the fuel cock to the "OFF" position.
2. Turn out the carburetor drain screw to drain
the fuel.
3. Remove the seat.
4. Remove the radiator cover and side cover by
removing the screws.
0–1500 m (5000 ft)
Jet needle Pilot air screw
3rd groove 2.0 turns out
3rd groove 1 1/2 turns out
4th groove 1 1/2 turns out
8-25
Altitude
Above 1500 m (5000 ft)
Main jet Jet needle
#190 3rd groove
#200 3rd groove
#220 3rd groove
3
1
3
1. Radiator cover
2. Side cover
3. Screw
5. Remove the fuel hose from the fuel cock.
Pilot air screw
2 1/2 turns out
2.0 turns out
1 1/2 turns out
3
3
2
1
2
3
4
5
6
7
8
9
10
11