Main jet size: Pitch 5MM 0.8MM, the amount of the total length of the hole 8MM, which nut length 3MM, thread length 5MM, nut diameter 6MM, please check with the size of buyers who purchase before you buy. This nozzle can be used to compare a wide majority of Keihin carburetor above, the use of surface. For example CVK, PE, PZ, PD, and other various riding cars and scooters above. Orifice flow specifications currently available are: 60.62.65.68.70.72. 75.78.80.82.85.88. 90.92.95.98.100.102. 105.108.110.112.115.118. 120.122.125.128.130.132. 135.138.140.142.145.148. 150.152.155.158.160.162. 165.168.170.172.175.178. 180.182.185.188.190. Main jet flow above specifications may optionally 6PCS. The buyer when submitting an order, please indicate in the remarks column inside, needed sizes, no remarks stated, we can not know the size you need, we can not be shipped! ! The following is the real main jet shoot pictures: