Baseline Jetting that comes in current new Weber carb models.
Note that this may not be the jetting that is in an older model Weber carb. Before you start tuning any Weber carb it is recommended that you remove the jets and make a list of what your carb currently has. You cannot make proper jet choices for tuning if you do not know what you are starting with. This list is so you know what will be in any new carbs you purchase from us.

Carb Model	Part #	Main Venturi	Aux Venturi	Main Jet	Em Tube	Air Corr Jet	Idle Jet	Pump Jet	Pump Exh	Needle Valve	Choke Type
32/36 DFAV 32/36 DFEV	22680.056 22680.070 Order Now	26/27	3.5/3.5	137/140	F50/F66	165/160	60/50	55		2.00	WATER ELECTRIC
32/36 DGV 5A	22680.005 Order Now	26/27	3.5/3.5	140/135	F50/F6	165/160	55/50	50		2.00	MANUAL
32/36 DGAV 32/36 DGEV	22680.051B Order Now 22680.033B Order Now	26/27	3.5/3.5	140/140	F50/F50	170/160	60/50	50		2.00	WATER ELECTRIC
34 ICH	15290.027 Order Now	29	3.5	165	F6	190	50	55	40	1.75	MANUAL
34 ICT	15290.035 Order Now	27	4.5	130	F78	160	52	50	40	1.75	NONE
38 DGES 38 DGAS	18930.032 Order Now 18930.020 Order Now	30	4.0	145	F50	185	45	70	30	2.50	ELECTRIC WATER
40 DCOE 151	19550.174 Order Now	30	4.5	115	F11	200	45F9	40	50	1.75	MANUAL
40 DCNF 12	18950.060 Order Now	30	4.5	125	F24	220	50	45	100	1.75	MANUAL
40 IDA 31,3C1	31300.001/002	28	4.5	125	F26	180	55	50	000	1.75	NONE
40 IDF 70	18950.138 Order Now	28	4.5	115	F11	200	50	50	55	1.75	MANUAL
44 IDF 71	18990.030 Order Now	36	4.5	135	F11	175	50	50	55	1.75	MANUAL
45 DCOE 152	19600.060 Order Now	36	4.5	145	F16	155	55F8	45	40	2.00	MANUAL
46 IDA 3C,3C1	31360.001/002	40	4.5	170	F24	145	70	50	100	1.75	NONE
48 DCO SP	19630.007 Order Now	42	5.0	180	F7	160	65F8	45	100	2.50	NONE
48 IDA	19030.015 Order Now	37	4.5	135	F7	120	70F10	50	000	2.00	NONE
48 IDF 6	19030.021 Order Now	40	4.5	150	F2	180	55	50	000	2.00	NONE
50 DCO SP 50 DCO 1 SP	19650.001 Order Now 19650.002 Order Now	46	5.0	180	F7	160	65F8	45	100	2.50	NONE
55DCO 55 DCO 1/SP	19700.001 Order Now 19700.002 Order Now	48	5.0	180	F9	180	60F8	45	100	2.50	NONE