
The 1.10 size is used as standard for the primary main jet in Weber 32 DMTR carburettors, as fitted to European 1300 models. Over size jets are also available.
Genuine Weber carburettor parts by WEBCON.
Main Jets - Standard Size |
Carburettor | Primary | Secondary | Model |
32 DMTR 22 | 1.10 | 1.15 | European 1300 (up to 1977) |
32 DMTR 34/250 | 1.10 | 1.15 | European 1300 (1977 on) |
34 DATR 7/250 | 1.07 | 1.30 | European 1500 |

Also applicable to Lancia Beta Scorpion.
Main Jets - Standard Size |
Carburettor | Primary | Secondary | Model |
32 DATRA 9/100 | 1.10 | 1.25 | Lancia Beta Scorpion |
34 DATR 4/200 34 DATR 4/250 34 DATR 4/150 | 1.20 | 1.30 | Lancia Montecarlo S1 & S2 |