Valve Adjustment

[tippmann9898]

How much do you guys think it should cost to get just my valves

adjusted on my 2000 440ex? My local Honda shop is trying to

charge me $97. I think that is crazy. Let me know what you've

payed. Thanks

[ImplodedMindZ]

I paid 60$ when i first bought my bike, but now after finding and reading the how to on it, its an easy procedure. I would just do it myself. I didnt get it done @ a honda dealership though but at another atv shop i go to.

[exboomer]

Do it yourself and pay nothing. Do a search on here and you will find the procedure. It's pretty basic and doesn't take very long to do.

[tippmann9898]

Yea I found how to do it on here. I just wanted to see what other shops are charging. I think my local shop is screwing me. They alreay got a s*** load of money from me to build my 440 a month ago. I don't think I'm going back to them. I'm doing it myself. Thanks.

[romeo_1885]

yeah I found the thread on here and did it myself and now my valves chatter, I'm going to redo it it with a .004 both intake and exhaust and I will see how that goes.

[Ruby Soho]

we did it ourself's.

[krt400ex]

my shop charged me a full $88 for a complete tune up...not just the valve adjustment.

[romeo_1885]

so I re-valved my quad and it still smokes a little but I think it's all the oil in my exhaust... it was smoking bad before I decided to re-valve it. the valves don't chatter anymore and everything is running great. Plan on Riding tomorrow out at Ocotillo and hopefully it runs strong. I'm getting Deployed and when I get back I plan on putting the 440 kit on my quad so I'll have them check everything when I get back.

[Ruby Soho]

they should make alittle noise shouldnt they?

[krt400ex]

Originally posted by Ruby Soho
they should make alittle noise shouldnt they?


when they get warm...a light tick at idle is all you should be able to hear

[Ruby Soho]

you can hear mine pretty decently.. but i have motorwork so i think its alright. but idont really know for sure. it runs amazing, and has been for months, so i dont think its hurting anything

[dabrowat]

Are the valve specs the same for a stock 400 and a 440ex? And does anyone know how much the dealer might charge in the chicagoland area? Thanks

[Taylor400ex]

Call your local shop??!!



Or you could just buy a book or print a search of it off this site and do it yourself. It takes longer to tear it down then the actual maintence does.

[firefighterjosh]

Originally posted by romeo_1885
yeah I found the thread on here and did it myself and now my valves chatter, I'm going to redo it it with a .004 both intake and exhaust and I will see how that goes.

Try doing it again. My first time doing it I did it wrong. Make sure it is at top dead center exactly. I stuck a screw driver in the spark plug hole to double check myself.

I wouldn't got .004 both. Go buy what they say .001 can make a huge diffrence

[krt400ex]

yea, and the manuel says that they should be at .006 - .007 in.

[krt400ex]

Originally posted by Ruby Soho
you can hear mine pretty decently.. but i have motorwork so i think its alright. but idont really know for sure. it runs amazing, and has been for months, so i dont think its hurting anything

mines stock...if u got a cam in it, then it will make more noise

[Taylor400ex]

Originally posted by krt400ex
yea, and the manuel says that they should be at .006 - .007 in.


For the older models it's 004 & 005, or i've got mine done WRONG

[krt400ex]

i dunno why they would change it because they didn't change anything in the top end...:huh

[Taylor400ex]

Originally posted by krt400ex
i dunno why they would change it because they didn't change anything in the top end...:huh


.Time to adjust the clearance! Insert a feeler gauge between the rocker arm, and the sub-rocker arm [figure 10] Loosen the 10mm lock nut, and adjust the screw in or out until there is slight drag on the feeler gauge. Tighten the lock nut while holding the adjuster screw. After tightening the lock nut recheck the valve clearance to make sure the adjusting screw didn't move. The exhaust valves should have .005 inches of clearance, and the intake valves should have .004 inches of clearance



This is straight off this sight!!!!

[krt400ex]

i stand corrected. i just looked at the manuel again, and it says .004-.005


maybe i looked at the wrong thing the first time

[TYTE440]

So does anybody know if the valves need to be adjusted different for a 440 kit and a cam? I had my buddy adjust mine (he put them to stock spec) and now it seems to cut out when getting on the throttle hard. Somebody told me the valves arent closing because they are too tight now?

[rynb15]

i think it depends on the cam. it should be different then stock

[TYTE440]

Ok thanks, he said it was real far out from stock and i asked him if it needed to be a little further out because of the 440 and cam. He said he didnt think so but i have heard otherwise. Im just tryin to find a starting point to set them at now and go from there.

[rynb15]

do you know what stage hotcam? i think if you search on their website you might be able to find it.

[TYTE440]

I will take a look, thanks! I think it is a stage 2 but i will have to check with my buddy i got the quad from.


Looks like stage 2 and stage 3 hot cams both call for 0.15mm exhaust and 0.13mm intake. Gonna try that.

:cool:

[bigbad400]

for the stg 2 hotcam you go to .005 intake and .006 exhaust. it will make quite a bit more noise, i can hear the whine of the timing chain and the valves make a little more chatter. i installed a crf450 chain in mine idk if that makes much dif in the noise from the chain. its supposed to be HD compared to the ex chain.

[TYTE440]

^^^^^ thanks im gonna try that! ^^^^^

[sum12nv]

In case anyone needs it here's a link to a good write up I used to adjust the valves in my 05

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

[TYTE440]

The engine doesnt need to be warmed up before adjusting valves does it?

[sum12nv]

Originally posted by TYTE440
The engine doesnt need to be warmed up before adjusting valves does it?

From my understanding, No

[TYTE440]

Cool thanks, i didnt think it would be a good idea to work on parts when they are hot lol :cool: