THIS IS ONE OF THE  RUBBER O`RINGS THAT FIT THE PILOT JET ON SOME OF THE 650/1000 MODELS 

O-Ring - 3.0mm x 1.3mm - Pilot Fuel Screw

Genuine OEM: 16038-024

D1 = 3mm
D2 = 1.3mm

Pilot Fuel Adjusting Screw O-Ring. Used on Mikuni carbs fitted to:
Z1000-A1/A2/B1/B2/B3/C1/C2 and other bikes - see below..

The fuel screws are the pilot circuit adjustment screws on the engine side of the carbs. Depending on the model- these are found directly under the carb or directly on top.
 PRICE IS FOR ONE

Motorcycle Fitment:

• 1977 Kawasaki KZ1000 Early KZ1000-A1
• 1977 Kawasaki KZ1000 Early KZ1000-B1 LTD
• 1977 Kawasaki KZ650 KZ650-B1
• 1977 Kawasaki KZ650 KZ650-C1 650 CUSTOM
• 1978 Kawasaki KZ1000 Early KZ1000-A2
• 1978 Kawasaki KZ1000 Early KZ1000-A2A
• 1978 Kawasaki KZ1000 Early KZ1000-B2 LTD
• 1978 Kawasaki KZ1000 Early KZ1000-C1
• 1978 Kawasaki KZ1000 Early KZ1000-C1A POLICE 1000
• 1978 Kawasaki KZ1000 Early KZ1000-D1 Z1-R
• 1978 Kawasaki KZ650 KZ650-B2
• 1978 Kawasaki KZ650 KZ650-B2A
• 1978 Kawasaki KZ650 KZ650-C2 650 CUSTOM
• 1978 Kawasaki KZ650 KZ650-D1
• 1978 Kawasaki KZ650 KZ650-D1A 650 SR
• 1979 Kawasaki KZ1000 Early KZ1000-C2 POLICE 1000
• 1979 Kawasaki KZ1000 Shaft KZ1000-E1 ST
• 1979 Kawasaki KZ650 KZ650-B3
• 1979 Kawasaki KZ650 KZ650-C3 650 CUSTOM
• 1979 Kawasaki KZ650 KZ650-D2 650 SR
• 1980 Kawasaki KZ650 KZ650-E1 650 LTD
• 1980 Kawasaki KZ650 KZ650-F1 650 CUSTOM
• 1981 Kawasaki KZ650 KZ650-H1 650 CSR