D-type needle for DELLORTO carburettors such as the VHST or the PHBL. A needle is adjusted to perfection in order to obtain stable speeds, cleaner recovery... Each engine and each carburettor will require a different needle, you are certainly not obliged to make this adjustment but you can save a lot performance by tweaking the carburettor needle. The D needle exists in several sizes. Please observe the table before order:

*Cut*	*length*	AT	B	VS	D	E
01	52.10	2.45	1.50	15.40	2,227	18
03	52.1	2.42	1.50	14.00	2,227	18
21	52.1	2.50	1.80	20.20	2,227	18
22	52.1	2.50	1.40	18.00	2,227	18
23	52.1	2.46	1.00	22.00	2,227	18
24	52.1	2.50	0.60	20.00	2,227	18
25	52.1	2.50	1.50	16.00	2,227	18
26	52.1	2.50	1.40	20.00	2,227	18
27	52.1	2.50	1.80	16.00	2,227	18
28	52.1	2.50	1.80	18.00	2,227	18
29	52.1	2.50	1.80	20.00	2,227	18
30	52.1	2.50	0.60	18.00	2,227	18
31	52.1	2.50	0.60	22.00	2,227	18
32	52.1	2.50	1.00	18.00	2,227	18
33	52.1	2.50	1.00	20.00	2,227	18
34	52.1	2.50	1.00	22.00	2,227	18
35	52.1	2.46	1.40	18.00	2,227	18
36	52.1	2.50	1.40	22.00	2,227	18
37	52.1	2.50	1.40	24.00	2,227	18
38	52.1	2.50	1.00	26.00	2,227	18
39	52.1	2.50	0.95	25.00	2,227	18
40	52.1	2.48	1.00	24.00	2,227	18
41	52.1	2.52	1.00	24.50	2,227	18
42	52.1	2.46	0.60	24.00	2,295	18
43	52.1	2.50	0.60	26.00	2,227	18
44	52.1	2.48	1.60	24.00	2,227	18
45	52.1	2.50	0.60	26.00	2,227	18
46	52.1	2.50	1.00	24.00	2,227	18
47	52.1	2.52	1.40	26.00	2,227	18
48	52.1	2.50	0.80	28.00	2,227	18
49	52.1	2.50	0.80	28.00	2,227	18
50	52.1	2.50	0.80	28.00	2,227	18
51	52.1	2.50	0.80	28.00	2,227	18
52	52.1	2.50	0.80	28.00	2,227	18
53	52.1	2.50	0.80	28.00	2,227	18

The original VHST carburettor has the following needles :

-The carburettor reference 09355 DELLORTO 26 VHST BS has the original needle D 48

-The carburettor reference 09356 DELLORTO 28 VHST BS has the original needle D 48

-The carburettor reference 09357 DELLORTO 28 VHST BS has the original needle D 41

needle jet DELLORTO AQ type for carburettors DELLORTO PHBL ...