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rubbersdown
12-13-2010, 11:42 AM
The port that gas comes out of when you undue the fuel drail screw, is that also the overflow on a stock 400ex carb? Mine started leaking and I dont know if its my needle and seat or if something is wrong with the drain screw. The o ring is fine on it but maybe the tip wears down or something?

AtvKid4Eva
12-13-2010, 01:25 PM
ive seen the tips on the drain screws wear causing them to leak, you'll just have to take it off and check the float may also be sticking open allowing excess gas overfill the bowl causing it to leak. if i were you id dissasemble the bowl and clean all the main parts with carb cleaner and see if it helps.

rubbersdown
12-13-2010, 01:40 PM
Yah thats the plan, just dont have time to do it till tomorrow so was curious as to expect a new float valve or a new fuel screw, maybe both lol.

rubbersdown
12-13-2010, 02:16 PM
ughhh, called my honda dealer and looked at the microfiche and you cant buy just the fuel drain plug screw you have to buy the whole bowl for like $100. gay. Crossing my fingers hoping its just the fuel valve.

bherriman
12-13-2010, 03:43 PM
Let me know, I've got a junk carb laying around with the drain screw.

rubbersdown
12-14-2010, 09:27 AM
cool im going to take it apart tomorrow and ill let you know.