do these work?

[01boneless]

hey guys im new to the forums but i was wonder do air shrouds/scoops realy help keep the engine cool or are the just more less for looks? thanks guys

heres a pic of my 400ex im modding for racing with lots of goddies

[tri5ron]

Marginally functional, but mostly looks.

[slightlybent47]

They will do some good at high speed but very little if anything at low speed. It depends on the application; if you are running a hot motor and heat was an issue then every little bit helps. But for the stock ex it’s just the look. A forced air system would work better i.e. spall fan.

[trailrider894]

Originally posted by tri5ron
Marginally functional, but mostly looks.

x2, my oil temps didn't go down at all. But i would imagine that if you did a larger cooler it would help a little.

WELCOME!!! Tell us about your quad, what all do you have done to it?

I am also an MX junkie... here is my ole girl. This is pre-rebuild though... :/ I'll get new ones sometime....

http://i357.photobucket.com/albums/oo17/trailrider894/Updated-ATV/007.jpg

[01boneless]

thanks for the reply and thats what i thought my 400ex has a 11:1 piston and it runs pretty hot but i dont think it will hurt it anyway

[trailrider894]

Originally posted by 01boneless
thanks for the reply and thats what i thought my 400ex has a 11:1 piston and it runs pretty hot but i dont think it will hurt it anyway

Do the SPAL fan mod if you are worried about it. That should nearly eliminate head fade.

[slightlybent47]

Trailrider894 must throw some sick whips. I see you have the # plate sideways so when you do whips we can still see the #.lol

[trailrider894]

Originally posted by slightlybent47
Trailrider894 must throw some sick whips. I see he has the # plate sideways so when he whips it you can still see the #.lol

Well... Actually, it was intended so that when i wreck and it falls on its side it the officials will be able to easily identify the idiot who just wrecked... lol

P.S.
They were sent to me like that... I've got the one to do it right, but my last name was spelled wrong... Its Gloe not Cloe......

[trailrider894]

Originally posted by 01boneless
i have the following for mx racing

99 40ex #4 ineed better pics
wiseco 11:1 piston and rings
prm bumper
fmf powercore4 pipe
fmf 909 bars
pillowtop grips
msr levers and clutch perch
xfr grab bar
widened 4 inches all around
flame shock covers
UNI air filter
factory effexs seat cover
dg nerf bars
tusk parking brake block off
turftamer tires 18 inch rear
motion pro clutch cable
rejeted for pipe and filter
nacs number backgrounds
CEET number decals
race cut fenders and thats about it

Did you use spacers to widen it?? If so, i would suggest putting your money into some a-arms and an axle. It is totally different with those vs. spacers.

[slightlybent47]

I'd go with the whip excuse.lol

[01boneless]

i know ive heard all about it they hold up great for me even on jumps!! nice quad you have bro

[slightlybent47]

His a arms look stock

[tri5ron]

01boneless,

welcome to the forums,
There are alot of good folks here who are knowedgeable, experienced, and happy to help you learn about your new quad.

The 400EX is a solid machine, that can be modified to almost any style of riding you want to use it for, and the aftermarket parts available for it are endless.
Basically the only limiting factor is how much you are willing to spend on it.

One of the best ways to get the most "Bang for your Buck", is to learn as much as you can about your quad, and the "Do's, and Dont's", that come with some of the cheaper methods for modifying your new machine.

Many of the things that you will want to learn about, have been covered by some VERY Knowledgeable and Experienced members, who have taken great amounts of time, and effort, in writing and explaining why certain things work very well, while other things do not.

Here is a very long and detailed discussion about suspension and handeling, that is a very handy tool for learning some of those details that make a huge difference as to how well your machine handles, and can be modified to handle even better.

http://www.exriders.com/vbb/showthread.php?s=&threadid=300433

If you take the time to read it throughly, I think you will come away with some information and knowledge that you will find useful and valuable.

Again,
Welcome to the forums, and enjoy your quad.
You made a great choice with the 400EX.

[01boneless]

thanks budy i love the 400ex but right now the timming chain is slapping the walls so its got to go to the shop and get fixed for about 400 bucks i heard the 400ex is bad about timming chains so

[sneaky11]

400$:eek:

#1 Tip: Change shop!

If you are a little bit handy, it's a not so tough fix man!! You can also put a crf 450r 03-08 timing chain as a little upgrade(much more stronger).

And with 400$, you can put brand new timing components, a new cam and even HD Springs. Dude 400$ is wayyyyyyy too much!

[01boneless]

i know its to high but belive it or it there the only shop for 100 miles so ya i could probley do it my self but i dont want to mess it up

[tri5ron]

01boneless,

Seriously, It's not that they are a little too high.
They are flat out ripping you off.

if you have ANYBODY who knows their way around a toolbox, ask them for some help. Tell them you'll pay them $100-150 labor, get the CRF chain that Sneaky mentioned, and you'll be saving yourself alot of cash.

Just because they ae the only shop around,... does that mean if they charged $200 each for tires, you would pay that ?

There are members from all over the country here. They can help and can usually suggest a reputable shop that you may not be aware of.
What city / town do you live in, or near?

Whatever you do,... Do not spend 400 bucks on a timing chain job !

[01boneless]

thanks for the help bud itsa honda shop but 400 is with the parts and all about how many hours you think it would take?

[sneaky11]

even with the parts!! You can get a crf timing chain, new tensioner, 2 new chain guides, side cover gasket, valves cover gasket for maybe 150$, and get the job done in under 1 hour for someone with some knowledges.

The 1st thing a becomer in the 400ex world need is the manual shop.

Got the .pdf version for you here:
400ex manual shop .pdf (http://www.4shared.com/file/amiyS4ge/Honda20400ex.html)

Just clic the big blue botton with '' télécharger maintenant'' on it, and wait until the download begin.

[01boneless]

there is not a single person around here that knows any thing about them but me and i dont know about timming chains but thanks for the help you have any pics of your quad?

[sneaky11]

I'm in rebuilt for now, and waiting after my parts to finish it!!

You can follow it there:
Sneaky's rebuilt!! (http://www.exriders.com/vbb/showthread.php?s=&threadid=460362)