[thomasperrard]

ok i know this may sound stupid but i did the timing chain replacement and adjusted the valves on my 2003 honda 400ex and its runs great for the short time i have run it but heres my question. on top of the motor in between the valve covers theres a breather port where does this go , is it just a breather with a tube or does it plug off to something , second on the oil sump resivor there is also a breather where does this go any help would be great thanks

 

[Helmut]

Welcome to the forums. That port on the valve cover is supposed to have a hose that runs to the top of the oil tank (oil reservoir).

 

[thomasperrard]

that would make sence but then i would have an extra hose

 

[Helmut]

that would make sence but then i would have an extra hose

Here's a diagram of it.

 

[thomasperrard]

that is freakin awesome thank you very much this is what i need to finish up thanks a million

 

[Helmut]

that is freakin awesome thank you very much this is what i need to finish up thanks a million

You're welcome.

 

[thomasperrard]

let me throw this back at you , what do think the other tube is for

 

[Helmut]

let me throw this back at you , what do think the other tube is for

I don't know which tube you're referring to. Do you have a picture?

 

[thomasperrard]

well i could but the hose is off its just a plain hose almost looks like fuel line but its off the bike , it was just sitting in the neck of the bike and i think it might be a drain for the plastic plate that sits under the gas tank not sure

 

[Helmut]

I don't have any idea where it would go.

 

[thomasperrard]

o well maybe it was someone else doing before i had the bike , again thanks for the info and diagram

 

[Helmut]

o well maybe it was someone else doing before i had the bike , again thanks for the info and diagram

That's about what I was thinking, but I didn't know if you bought it new or not.

 

[thomasperrard]

well i bought it used , i put it back together just like the diagram ran it around and it sounds good so im going to leave it at