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View Full Version : Valve adjustment


vhull87
09-10-2005, 03:46 PM
How do you know when you have to adjust your valves on a 400ex. An how long would it take to adjust them?
DaleJrFan
09-10-2005, 07:51 PM
it dosnt take too long providing you are mechanically inclined. your best bet is to get a clymer manual or do a search on here, it has been posted before. good luck.
vhull87
09-11-2005, 12:21 PM
well maybe its not the valves because it seems to start to make the ticking nosie after its been running a while. Or im just getting paranoid I dont know any help would be great.
cals400ex
09-11-2005, 03:38 PM
here you go:

http://www.atvriders.com/articles/valveadjustment400ex.html



it could possibly be a stretched timing chain or a bad timing chain tensioner.
DaleJrFan
09-11-2005, 03:39 PM
the ticking noise is normal, i put a hot cam in mine and it got louder, don't sweat it, nothing is wrong.
vhull87
09-12-2005, 11:08 AM
it seems to do it more after ive road it for a while thats still normal?
ride_red666
09-12-2005, 04:59 PM
the ticking noise is normal when it has been running for a while. if it is loud and does it ALL the time then u hav a problem
cals400ex
09-13-2005, 12:47 AM
i guess it depends on how loud the tick is.