
The 0.70 size is used as standard for the secondary idle jet on
Weber 32 DMTR carburettors as fitted to European 1300 models up to 1977,
and on Weber 34 DATR carburettors as fitted to European 1500 models.
Genuine Weber carburettor parts by WEBCON.
Idle Jets - Standard Size |
Carburettor | Primary | Secondary | Model |
32 DMTR 22 | 0.50 | 0.70 | European 1300 (up to 1977) |
32 DMTR 34/250 | 0.50 | 0.50 | European 1300 (1977 on) |
34 DATR 7/250 | 0.47 | 0.70 | European 1500 |

Also applicable to Lancia Beta Scorpion and Montecarlo S1 & S2.
Idle Jets - Standard Size |
Carburettor | Primary | Secondary | Model |
32 DATRA 9/100 | 0.50 | 0.70 | Lancia Beta Scorpion |
34 DATR 4/200 34 DATR 4/250 34 DATR 4/150 | 0.50 | 0.70 | Lancia Montecarlo S1 & S2 |