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Trying to figure out why fuel leaks steadily out of a very small hose coming from be very bottom of the carburetor. Hose does not appear to attach anywhere seems like an open hose. Leaks only when running. Also a thicker hose coming from mid carb leaks some as well while running. That hose Appears to be a vent hose of some sort and is sliced add a 45 at the end. Final note I have got the scooter to run smoothly but just facing these leaks any information would be greatly appreciated , the gas tank is nowhere near full checked already.
Hi, Don’t know the answer but here’s the service manual for a YJ125S scooter. Hopefully it is for your year model as it says 1st. Edition Nov’ 2003 on p.2 of the manual Section 6 in the manual details how to check and test the carburettor. Hopefully this is of some help.
Float needle is or seat is no sealing properly causing excessive fuel to fill the carburetor bowl going into the overflow.
