| Code | Model | Year | Bore x Stroke | Displace. | Destination | Init. Fr. Num. | Engine Num. | Avl. | Reference |
| 1J7 | GX750 | 1976 | 68.0 x 68.6 | 747 | JPN | 1J7-000101 | 1J7 | 1976.04 | 3in1 muffler, 60ps/7500rpm |
| XS750 | 1977 | 68.0 x 68.6 | 747 | USA | 1J7-100101 | 1J7 | |||
| 1T4 | XS750-2D | 1977 | 68.0 x 68.6 | 747 | USA | 1J7-100101 | 1J7 | 3in2 muffler | |
| 1T5 | XS750D | 1977 | 68.0 x 68.6 | 747 | EUR | 1T5-000101 | 64ps/7200rpm | ||
| 2F3 | XS750E | 1978 | 68.0 x 68.6 | 747 | USA | 1J7-220101 | 1J7-220101 | ||
| 2F9 | GX750II | 1977 | 68.0 x 68.6 | 747 | JPN | 1J7-200101 | 1J7 | 1977.05 | 3in2 muffler, 67ps/8000rpm |
| XS750E | 1978 | 68.0 x 68.6 | 747 | AUS,CDN | 1J7-240101 | ||||
| 2G2 | XS750SE | 1978 | 68.0 x 68.6 | 747 | USA | 1J7-300101 | 1J7-300101 | ||
| XS750SF | 1979 | 68.0 x 68.6 | 747 | USA | 1J7-350101 | ||||
| 2K1 | XS750 Special | 1978 | 68.0 x 68.6 | 747 | JPN | 1J7-400101 | 1J7 | 1978.03 | |
| XS750SE | 1978 | 68.0 x 68.6 | 747 | CDN | 1J7-410101 | ||||
| 2K3 | XS750E | 1978 | 68.0 x 68.6 | 747 | EUR | 1T5-100101 | new crankshaft, 74ps/8400rpm | ||
| 2L2 | XS750E | 1978 | 68.0 x 68.6 | 747 | EUR | 1T5-200101 | |||
| 2Y4 | XS750F | 1979 | 68.0 x 68.6 | 747 | CDN | 1J7-430101 | |||
| 3A2 | XS750 Special | 1978 | 68.0 x 68.6 | 747 | JPN | 1J7-420101 | 1J7 | ||
| XS750 Special | 1979 | 68.0 x 68.6 | 747 | JPN | 1J7-440101 | 1J7 | 66ps/8000rpm | ||
| 3A5 | GX750 | 1979 | 68.0 x 68.6 | 747 | JPN | 1J7-460101 | 1J7 | 67ps/8000rpm | |
| 3G9 | XS750 | 1979 | 68.0 x 68.6 | 747 | EUR | 1T5-250101 | 24L tank | ||
| 3H2 | XS750 | ||||||||
| 3J2 | XS850SG | 1980 | 71.5 x 68.6 | 826 | USA | 3J2-000101 | 3J2-000101 | Spl. style | |
| 3J3 | XS850G | 1980 | 71.5 x 68.6 | 826 | USA | 3J3-000101 | 3J3-000101 | ||
| 3J9 | XS750SG | 1980 | 68.0 x 68.6 | 747 | Oce. | 3J9-000101 | Spl. style | ||
| 3K0 | XS750F | 1979 | 68.0 x 68.6 | 747 | AUT | 1T5-300101 | |||
| 3L3 | XS750SE | 1979 | 68.0 x 68.6 | 747 | EUR | 3L3-000101 | Spl. style | ||
| XS750SE | 1980 | 68.0 x 68.6 | 747 | EUR | 3L3-050101 | Spl. style | |||
| 3U8 | XS850G | 1980 | 71.5 x 68.6 | 826 | CDN | 3U8-000101 | |||
| 3V0 | XS850SG | 1980 | 71.5 x 68.6 | 826 | CDN,Oce | 3V0-000101 | Spl. style | ||
| 3W8 | GX750 | 1980 | 68.0 x 68.6 | 747 | JPN | 1J7-490101 | 1J7 | 1979.12 | short muffler, 66ps/8000rpm |
| 4E2 | XS850 | 1980 | 71.5 x 68.6 | 826 | EUR | 4E2-000101 | up muffler, 79ps/7500rpm | ||
| 4G1 | XS750 Special | 1980 | 68.0 x 68.6 | 747 | JPN | 1J7-493101 | 1J7 | 1980.01 | 16inch rear, 65ps/8000rpm |
| 4H0 | XS850G | 1980 | 71.5 x 68.6 | 826 | Oce. | 4H0-000101 | |||
| 4H1 | XS850LG | 1980 | 71.5 x 68.6 | 826 | USA | 4H1-000001 | 4H1-000001 | ||
| 4H2 | XS850LG | 1980 | 71.5 x 68.6 | 826 | CDN | 4H2-000101 | |||
| 4R2 | XS850SH | 1981 | 71.5 x 68.6 | 826 | USA | 4R2-000101 | 4R2-000101 | Spl. style, Electronic Spark Advancer | |
| 4R3 | XS850H | 1981 | 71.5 x 68.6 | 826 | USA | 4R3-000101 | 4R3-000101 | ||
| 4T2 | XS850SH | 1981 | 71.5 x 68.6 | 826 | CDN | 4T2-000101 | Spl. style | ||
| 4T3 | XS850 | ||||||||
| 4W3 | XS850LH | 1981 | 71.5 x 68.6 | 826 | USA | 4W3-000001 | 4W3-000001 | Spl. style | |
| 4W4 | XS850 |
