Correct jetting is a subject that never will be finished.
Main interesting part is of course jetting of a twin carb. set on a 1.6
Murena.
Key items to a good setup are overall engine condition plus possible
modifications on eg. camshaft, exhaust system.
At this time it is not possible to give a real good overview on best
settings... more input to achieve it is highly appreciated.
| |
Murena standard 1600cc |
Bagheera 1440cc |
Murena standard 1600cc
Twin Weber Setup |
| Brand |
1x Weber |
2x Weber |
2x Weber |
| Type |
36 DCNVA 16 |
36 DCNF 51 & 52 |
36 DCNF |
| Main venturi |
29 |
30 |
29 |
| Auxiliary venturi |
4.5 |
3.5 |
3.5 |
| Main jet |
150 ± 5 |
130 |
120 |
| Air nozzle |
175 ± 10 |
220 (250 pre '77) |
185 |
| Emulsion tube |
F46 |
F36 |
F36 |
| Idle jet |
40-45 |
47 |
45-50 |
| Idle air nozzle |
165 ± 10 |
135 ± 15 |
120 |
| Needle |
175 |
175 |
175 |
| Float level height (mm) |
42.5 ( ± 0.25) |
52 |
52 |
| CO-level |
1 - 2.5 % |
1.6 - 2.5 % |
1.6 - 2.5 % |
| CO2-level |
>11% |
>11% |
>11% |
|
Jetting Twin Weber DCNF
Carburators