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