The black parts are the banjo fittings, the purple is the release ring. You squeeze the purple ring back towards the black fitting and it releases the metal teeth that bite into and hold the 6mm nylon hose in. The stainless banjo bolt through the center is 6mm and has O rings on it to seal against the pump. There is a O ring inside past the teeth that the hose seals on, these type fittings will take 150 psi easily. The check valves are in the carb banjo hole and the ball seats against the banjo bolt, I lightly countersunk the bolt for a seal face. My bike (well, boxes of mismatched parts) came with only the 1 into 3 crankcase line, I had no carb lines at all. STCValve.com has a huge selection.
_________________ 1974 Kawasaki H2B 750, 1981 Yamaha XV750 Cafe, 1986 Kawasaki KDX200, 2003 Honda XR100, 2004 SDG140. 2006 Ninja 500R Turbo intercooled fuel injected.
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