i have a honda 400ex 2003 it make a ticking sound at idle but not when cold when it warms up but i dont know if it dose it when riding because of exusta it has jetted air fillter pipe thats it for motor help i have adjusted valve twise but its still there maby timing chain lose how do i adjust that thanks hope to get an awnser thanks[img]i/expressions/face-icon-small-mad.gif[/img]

 

my 2002 400EX does the same thing, it sounds like they are little men in there playing music!

 

Typical for the 400ex to make that noise.

 

my 400 has the same prob. I adjusted the valves as well but I still hear it.

 

it also could be due to wear on the rocker arms..
if there is pretty good wear (almost pitting ) on the rocker arms you will hear extra noise regardless of how well adjusted the valves are.
if its bothers you too much pull the valve cover and have a gander at all the rocker arms....
been there done that $200 later all new rocker arms...

i doubt its the timing chain... if it was that loose it would have probably already blew its self apart...

 

yeah i change the oil but it still dose it when cold and the oil help the nosie a ilttle

 

the odds are its your timing chain. it happens alot to 400exs. but dont worry its an cheap and kinda easy fix. just get on ebay and search 400ex heavy duty timing chain. there is a kit that comes with gaskets, seals, cam sprocket bolts, and of course the timing chain. and the timing chain is a little larger and is much more durable. i put one in my 400 and the ticking went away. and sense its a heavy duty timing chain the odds of it coming back are slim. so I hope i helped and sorry i kinda got into a rant. lol