i have a dvx 400... and i dont think i have a carb overflow tube??... just to see if it came out of that tube coming out of the bottom of the carb, I tipped it on the side... and nothing leaked out?? does it have some kind of fuel return if the carb gets too full?... not to mechanical inclinde.. need some help

 

My 300ex will pour out the overflow when i do wheeles but not on it's side!

 

Sould have one, but it could be plugged.and Rolling on the side may not cause the gas to overflo out the tube. If you loosen the screw at the bottom of the float bowl does gas come out of the tube? If it does, then the line , outside the carb,isnt blocked.
If you want to make sure, drop the float bowl and check to see if its plugged.
On my photo page is a picture of a float bowl, and the brass tube sticking up, is the vent/overflow tube.

 

hondabuster, do i have to drain the gas out of my tank to drop the float bowl,on my 416ex, if you tip it on its side, it leaks out gas?

 

Its normal for gas to leak out the overflow tube, when a quad is on its side. But its not a sign, that someting is wrong, if it doesnt.
Shut off the flow of gas to the carb, then unscrew, a few turns, the screw on the bottom of the carb, to drain the float bowl. Then you can take off the float bowl without splashing too much gas around.
Theres no fuel return, the float needle and seat, shuts the flow of gas, when the float rises. This is supposed to prevent overflowing, but if the needle sticks, then the overflow prevents engine damage by providing a way for the excess gas to escape.
Im not sure you have a problem...what other symptoms or problems does it have...or are you just curious?
Heres a good site with info on carbs.
carb
carb 101

 

I'm just curious really.... i just have never seen any gas leaking out of the overflow, and i have owned it since it was brand new. Its about 3 months old. i have even tipped it back on the wheelie bar and nstill, nothing leaks.

 

If it runs right i would leave it alone.

 

i just got released from my surgery yesterday, and i rode her for only an hour (really cold) and it ran great... i think i might leave it alone.

Thanks for all the info guys


Nate