400ex Carb Question

[hondarider42]

I was cleaning the carburetor on my 400ex and I noticed the screw on the side of the float bowl on the carb. It looks similar to the fuel screw except it has a tapered end to it. Can anyone tell me what this screw is for? Thanks

[on the rocks]

this can tell you what you need to know. even has pictures!

http://www.exriders.com/vbb/showthread.php?s=&threadid=394028&perpage=10&pagenumber=1

[TheAwesomehonda]

I think you are talking about the screw for draining the fuel bowl.

[hondarider42]

Thanks TheAwesomehonda, that makes sense. I just wasn't sure if it was supposed to be tightened to a certain point or not like the fuel screw. Thanks again.

[Stickman400]

Does fuel drain out of the bowl when you loosen it all the way up? If it doesn't it's a different screw. I know I have a hole on the bowl of my carb. that is tapped with threads and there is no screw in it, It's just a dead end hole. Idk what it's for but you may have the same kinda deal.

[hondarider42]

Stickman400, I'll have to check it out for sure. I am rebuilding my carburetor, so I had it off the quad already and drained before I found the screw. I'll take a better look at it, but from the looks of it, I'd say it's a drain screw since it has the tapered end to it.

[CJM]

If its the one right next to the idle adjustment, its for draining the fuel from the bowl using the little vent hose. I use it all the time to get gas from if need be.