This is what AMAL have on their website for a MK V
Full Set Part Number: ACK414
Description: N/A
Make: Douglas
Model: MK V Sport
Engine Size: 348cc O.H.V.
Carb Type: Type 274
Year: 1947 to 1954
Number of Carbs: 2
Needle Position: 3
Internal Bore: 23/32in
Float Chamber Needle 021061 VIEW
Main Jet Main Jet - Size 80 VIEW
Needle Jet Pre Monobloc Needle Jet - Size 107 VIEW
Repair Kit Type 4, 74 & 274 Repair Kit VIEW
Throttle Valve Type 4, 74 & 274 Throttle Valve - 5 Cutaway VIEW
