10 hr valve adjustment

[Dangerous400EX]

Has everyone done this on their new quads, and was any adjustment even necessary?

Thanks

[kilgoja]

i haven't done it yet....i haven't noticed any decrease in performance but the valves do tick some...i've been meaning to do it i just keep putting it off.....i know a guy that has an xr400 for like 15 years and he never did it...so dunno...prolly better if you do it but i don't think it's gonna mess anything up too bad if ya don't

[Chukkinsod]

I would check the adjustment every time you change your oil, it will make it perform different. On a new bike you wont notice it, but ride it for a while, let them brake in and then adjust them you will notice a difference> 400's have some valve clatter...louder than others.........

how would you describe valve clatter? Just wondering what sound to hear for..

[Dangerous400EX]

I plan on adjusting them eventually, but was going to wait a little while like Chukkinsod suggested. I know a guy with a CRF 450 and he has never adjusted his after three years, which is dumb to me. I just didnt see any reason to do it with a quad still on its second oil change

[leasureryan]

it's just recomended you do check it at first service....it doesn't mean it will be out of spec. 99% of the time, the will be within spec first time around.....I would adjust your valves atleast once a year


ticking noises or sounding like a deisel will give you a good hint of needing a valve adjust

[BossHogg420]

how bad of ticking noises because ive checked mine and it still makes ticking noises......and there where in spec!

I do my valve adjutments about every 6 months cause I beat on the quad. Mines due right now for it

[jarrydj]

Just got to about 10 hrs on my 08 and checked the valves. They were within spec. It was simple to do and gives me more peace of mind while I am riding.