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440 kit in honda 400ex

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Evo Warrior
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Joined: 12 Jul 2007
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PostPosted: Wed Aug 06, 2008 12:50 pm Post subject: 440 kit in honda 400ex Reply with quote Back to top

Just wondering if anyone has put a 440 kit in a 400ex? Just wanted to know if its worth the trouble? any comments would be great! laughing laughing
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Predatory
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PostPosted: Wed Aug 06, 2008 12:54 pm Post subject: 440Kit Reply with quote Back to top

I had one that gave me endless trouble blowing Head gaskets. I had another one which was the Duncan Racing Kit and never ever had a problem. Definately worth the Money. Try and get a bigger oil cooler to go with it. Definately if you are doing a lot of sand riding.
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Country Boy!!
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PostPosted: Wed Aug 06, 2008 4:59 pm Post subject: Reply with quote Back to top

yer i had 1 but sold it. it gave me touble i keep on blowing headcaskets
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Quad
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PostPosted: Wed Aug 06, 2008 5:22 pm Post subject: Reply with quote Back to top

put your money into a better quad later.
 
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Ozzy450
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Joined: 27 Mar 2007
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PostPosted: Thu Aug 07, 2008 8:13 am Post subject: Reply with quote Back to top

yer i agree. I spent a heap on a 440 kit. cams. port job. and it just kept dropping valvess and blowing up. not worth the hastle.
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Joined: 03 Sep 2007
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PostPosted: Thu Aug 07, 2008 5:26 pm Post subject: Reply with quote Back to top

Ozzy450 wrote:
yer i agree. I spent a heap on a 440 kit. cams. port job. and it just kept dropping valvess and blowing up. not worth the hastle.


Basically that is your answer right there! If you are starting to out ride your quad ... rather save up and start looking around for a bigger faster quad. The money you spend AFTER you hopup you quad is just not worth it! Unless you are able to open the quad every 10 hours or so, it really is not worth the money, hassle and embarisment of breaking down in the middle of no where!!

However, like most things, you may just get it right, and love it for many years to come ... Smile

Hope that helps!!
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The Two Stroke Smoker
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PostPosted: Thu Aug 07, 2008 7:44 pm Post subject: Great prayer Reply with quote Back to top

Hey WHATEVER Great prayer

Quadders prayer ... "Please Lord dont let the wife sell my quad for what I told her I paid for it! Amen" laughing laughing laughing laughing laughing laughing laughing
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PostPosted: Thu Aug 07, 2008 8:04 pm Post subject: Re: Great prayer Reply with quote Back to top

COTTO wrote:
Hey WHATEVER Great prayer

Quadders prayer ... "Please Lord dont let the wife sell my quad for what I told her I paid for it! Amen" laughing laughing laughing laughing laughing laughing laughing


Cheers mate!! Smile
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Evo Warrior
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Joined: 12 Jul 2007
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PostPosted: Wed Aug 13, 2008 9:14 pm Post subject: Reply with quote Back to top

Thanks for the comments mite save my money and upgrade bike.
Thanks again laughing eek
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ben_400ex
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PostPosted: Thu Sep 04, 2008 2:30 pm Post subject: Reply with quote Back to top

the 440's are a great thing if they are done right and not just thrown together, one of my mates had one on a 99 model EX with yoshi exhaust and hotcam and the thing absolutly hauled and you couldn't kill it!... normally the only real issue is they blow head gaskets because the extra compression and stress stretches the stock head studs, fit a set of heavy duty head studs and the problem is solved.
I'm in the process of completing a ground up makeover of my 04 EX, which is going to use a hotrods/cp pistons stroker/bigbore 460 kit, some people ask why i spent the money on it but at the end of the day i've had a lot of fun doing it and i've had experience messing about with it i'll never get anywhere else plus in the end i'll have a one of a kind bike that i can say i built.
They may be no 450 racer + the 400's are a good old bike.
 
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4stroker



Joined: 15 Jan 2007
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PostPosted: Thu Sep 04, 2008 3:01 pm Post subject: Reply with quote Back to top

ben_400ex wrote:
people ask why i spent the money on it but at the end of the day i've had a lot of fun doing it and i've had experience messing about with it i'll never get anywhere else plus in the end i'll have a one of a kind bike that i can say i built.


that is a great attitude! sounds like an awesome project, have you got any pics of the build up?

ben_400ex wrote:

They may be no 450 racer + the 400's are a good old bike.


the chassis should be up to par from what ive read (same as 250R) so if you can get the engine to haul ass (which it sounds like it will!) i cant see why it wouldnt be competitive!
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ben_400ex
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PostPosted: Thu Sep 04, 2008 4:28 pm Post subject: Reply with quote Back to top

thanks for the positive words Wink
I'll try and get some pics in the next few days, all I have is heaps of bits at the moment but i've got the frame done and a few nice bits you mite like to see, i'll get the pics and post them up along with a list of the mods i've got on the go for you to check out.
 
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4stroker



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PostPosted: Thu Sep 04, 2008 4:36 pm Post subject: Reply with quote Back to top

yeah sweet would make a good thread in the tech section
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my350yfm
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PostPosted: Thu Sep 04, 2008 5:21 pm Post subject: Reply with quote Back to top

yea sweet mate get pics, im rebuilding my trx400ex soon aswell, im not going to go as far as you, im just going to put a high comp piston in and a stage 2 hot cam.
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TRX FoFiddy
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PostPosted: Fri Sep 05, 2008 8:32 pm Post subject: Reply with quote Back to top

after spending money on my 440ex puttong heaps of mods on it,, in the end it gose hards but when i look back i should of sold it and got a trx450r or sumthing..... they go hard when u out sum engine mods into them.. mine just gets way to hot were i lvieo ut here.
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ben_400ex
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Joined: 17 Jul 2007
Posts: 21

PostPosted: Sat Sep 06, 2008 11:17 am Post subject: Reply with quote Back to top

i'll try and get some pics of some of my gear up tonight.
its good to hear there is still other people out there messing around with the good ol' 400ex
I was told right from the start over heatingwould be a problem i'm hoping i've fixed that tho... I've got a aftermarket oil cooler which i'm mounting in line with the stock one plus some aluminium air scoops and if it is still an issue there are lil 4" fans you can get to pull air through the coolers which aparently make a big difference. i'm hoping the bigger cooler should do the trick tho and considering they're only like $40 its a cheap fix.
 
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nazzame
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Joined: 31 Oct 2007
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PostPosted: Sat Sep 06, 2008 2:20 pm Post subject: air scoops Reply with quote Back to top

Hey where did you get your scoops from ?
 
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ben_400ex
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PostPosted: Sat Sep 06, 2008 9:04 pm Post subject: Reply with quote Back to top

got my scoops from america off ebay, its good for specialty bitslike that
 
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ben_400ex
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PostPosted: Tue Sep 09, 2008 11:18 am Post subject: Reply with quote Back to top

here's the link to my post with some pics of my progress.
look foward to hearing what you guys think Wink
http://www.ozatv.com/forum/viewtopic.php?p=51977#51977
 
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4stroker



Joined: 15 Jan 2007
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PostPosted: Tue Sep 09, 2008 11:30 am Post subject: Reply with quote Back to top

Fast 440ex wrote:
after spending money on my 440ex puttong heaps of mods on it,, in the end it gose hards but when i look back i should of sold it and got a trx450r or sumthing..... they go hard when u out sum engine mods into them.. mine just gets way to hot were i lvieo ut here.


ballards used to do a "big fin" head mod where they would weld extra/larger fins onto the head. apparently it made a big difference.

im pretty sure they dont do that type of stuff anymore but i bet they could point you in the direction of someone who can.
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