The following are Yamaha part numbers for carburetor main nozzle and needles broken down for all years of the XS and XJ models. I included the pilot screw number (the idle mix screw everyone breaks the tip on) on earlier models but the later models do not show it in the microfiche... I assume they are the same throughout but have no evidence of that.
1978 XS 1100 E
Main Nozzle: 2H7-14941-02-00
Needle: 2H7-14116-06-00
Pilot Screw: 2AZ-14923-00-00
1979 XS 1100 F
Main Nozzle: 2H7-14941-02-00
Needle: 2H7-14116-06-00
Pilot Screw: 2AZ-14923-00-00
Yamaha Microfiche did not list the 79SF, I will assume it is the same as the '79F unless otherwise told different.
1980 XS 1100 G
Main Nozzle: 3H5-14941-02-00
Needle: 360-14116-07-00
Pilot Screw: none listed
1980 XS 1100 SG
Main Nozzle: 3H5-14941-02-00
Needle: 452-14116-16-00
Pilot Screw: none listed
1980 XS 1100 LG
Main Nozzle: 3H5-14941-02-00
Needle: 452-14116-16-00
Pilot Screw: none listed
1981 XS 1100 H
Main Nozzle: 3H5-14941-02-00
Needle: 360-14116-07-00
Pilot Screw: none listed
1981 XS 1100 SH
Main Nozzle: 3H5-14941-02-00
Needle: 360-14116-07-00
Pilot Screw: none listed
1981 XS 1100 LH
Main Nozzle: 3H5-14941-02-00
Needle: 452-14116-16-00
Pilot Screw: none listed
1978 XS 1100 E
Main Nozzle: 2H7-14941-02-00
Needle: 2H7-14116-06-00
Pilot Screw: 2AZ-14923-00-00
1979 XS 1100 F
Main Nozzle: 2H7-14941-02-00
Needle: 2H7-14116-06-00
Pilot Screw: 2AZ-14923-00-00
Yamaha Microfiche did not list the 79SF, I will assume it is the same as the '79F unless otherwise told different.
1980 XS 1100 G
Main Nozzle: 3H5-14941-02-00
Needle: 360-14116-07-00
Pilot Screw: none listed
1980 XS 1100 SG
Main Nozzle: 3H5-14941-02-00
Needle: 452-14116-16-00
Pilot Screw: none listed
1980 XS 1100 LG
Main Nozzle: 3H5-14941-02-00
Needle: 452-14116-16-00
Pilot Screw: none listed
1981 XS 1100 H
Main Nozzle: 3H5-14941-02-00
Needle: 360-14116-07-00
Pilot Screw: none listed
1981 XS 1100 SH
Main Nozzle: 3H5-14941-02-00
Needle: 360-14116-07-00
Pilot Screw: none listed
1981 XS 1100 LH
Main Nozzle: 3H5-14941-02-00
Needle: 452-14116-16-00
Pilot Screw: none listed
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