|
|
|
Weber
Carburetor Parts
Check
out our wide selection of available Weber Kits, inlcuding replacement
jets and venturii. Create
an Account with us, and order online today!
Weber
Jetting Chart
This
Jetting Chart provides a base line starting point. Every engine responds
differently, and final jetting changes are most often determined by
the engine builder or tuner. Engine size, cam, cylinder heads, ignition
system, compression ratio, exhaust system, type of fuel, the vehicle
and type of driving are all key elements in final calibration. The selection
of main gas and air correction jets is determined by venturi size. The
venturi sizes listed below are the sizes supplied by Weber in new carburetors.
The use of larger venturi will increase airflow, and larger main gas
jets than noted below will be required.
WEBER
40 IDF |
Factory
Sizes |
Single
Carb |
Dual
Carbs |
| AIR
CORRECTION |
2.00 |
1.60 |
2.00 |
EMULSION
TUBE |
F-11 |
|
|
MAIN
JET |
1.15 |
1.45 |
1.30 |
PUMP
JET |
.50 |
.80 |
.50 |
IDLE
JET |
.50 |
.65 |
.55 |
VENTURII |
28mm |
|
|
| NOTE:
Drill 2mm Hole in each Throttle Valve of Single Carb. |
| |
| WEBER
44 IDF |
Factory
Sizes |
Single
Carb |
Dual
Carbs |
AIR
CORRECTION |
1.75 |
1.65 |
2.00 |
EMULSION
TUBE |
F-11 |
|
|
MAIN
JET |
1.35 |
1.60 |
1.55 |
PUMP
JET |
.50 |
.80 |
.50 |
IDLE
JET |
.50 |
.65 |
.60 |
VENTURII |
36mm |
|
|
| NOTE:
Drill 2mm Hole in each Throttle Valve of Single Carb. |
| |
| WEBER
48 IDF |
Factory
Sizes |
Single
Carb |
Dual
Carbs |
AIR
CORRECTION |
1.80 |
1.80 |
2.00 |
EMULSION
TUBE |
F-2 |
|
|
MAIN
JET |
1.50 |
1.70 |
1.75 |
PUMP
JET |
.50 |
.80 |
.50 |
IDLE
JET |
.55 |
.65 |
.60 |
VENTURII |
40mm |
|
|
| NOTE:
Drill 2mm Hole in each Throttle Valve of Single Carb. |
| |
| WEBER
34 ICT |
Factory
Sizes |
Single
Carb |
Dual
Carbs |
AIR
CORRECTION |
1.60 |
N/A |
1.60 |
EMULSION
TUBE |
F-78 |
N/A |
|
MAIN
JET |
1.30 |
N/A |
1.35 |
PUMP
JET |
.50 |
N/A |
.50 |
IDLE
JET |
.52 |
N/A |
.60 |
Weber
Carburetor Parts
|
