Hey, I have a '03 150, and it leaks fuel from the carb overflow, sometimes when its running, sometimes when its off, sometimes it seems to shoot out of there.
I've had the carb apart several times, ive cleaned the float needle seat, it had varnish/gum in it (like 4 stripes, mirroring the shape of the needle, the bike had been sitting for a long time), the float needle looks ok,.
if i leave the bowl off, and hook up fuel it comes out the float seat like normal, and if i then raise the float by hand to the top, it stops.
but when its all together again it still leaks everywhere - so the float must be bad right?