Cooling Honda Trx400ex with Overheating Solution

On this video, I will show you how to mount an extra oil cooler on your Trx400ex so that you drop about thirty degrees Fahrenheit in engine temperature. My Trx is 2003, but this works on all years as far as I know. Thanks for watching.
Original Forum:
www.atvriders.com/vbb/showthre...
Oil Coolant:
www.ebay.com/itm/UNIVERSAL-AL...
Instagram:
Zarca_Powersports

[@justinhulsey4834]

Keep kicking ass brotha!! You got a fan base in west Texas. Great stuff motivator!

[@420whipakadonwhispers3]

Dope video lil homie I’m thinking about actually doing this ima check and see if u posted a performance vid of it but yea definitely liked it lil brudda keep it up much success to u on everything

[@rizzler713]

Hell yeah brother keep it up you’ll get subs quick!!!

[@JP-ec9rl]

For the naysayers: I don't believe this would lower the overall oil pressure. It might take a couple seconds longer at startup to build initial pressure but the diameter of the return line is still the factory spec, therefore the pressure should remain the same. If anyone had any major concern, it should be simple enough to plumb in a pressure gauge before completing the mod to develop a baseline for normal oil pressure, then check it again after completing the modification.

[@michaelthomas788]

Yeah but you got air bubbles in the oil that could or could not cause cavitation which would burn up the oil pump and blow the engine

[@michaelthomas788]

Is always a risk when running dry sump oil system meaning nothing gets oil until the engine is running

[@88jonathanz]

this was actually an instructional video

[@trentonkaspar5258]

Thanks for the extremely helpful video. I’m new to working on my trx400. Do you have to drain the cooler when you chance your oil? Also how would you flare the line after cutting?

[@zarca_powersports]

trenton kaspar No, all you have to do is empty out your oil reservoir while your bike is warm. To clean the line all I did was hit it with an air pressure tank line to get all the small stuff out of there. Thanks fo watching.

[@3popcan]

Hey great video I've order the oil cooler through your link in the description. Came in today and it was very easy to install. My 440ex thanks you a bunch lol (:

[@zarca_powersports]

LIKEA BOSS! Glad that this helped you out, keep that trx running like a champ!

[@jonathanolguin1592]

Has it held up?

[@dirtrider6090]

Where did u get the new hose from to make the lines longer

[@scruffyjanitor178]

Great video, I do have one question. Did you have to flare out the ends of the pipe/oil line(where you cut) to prevent the rubber hoses from slipping off because of the pressure or do the hose clamps hold it together just fine?

[@zarca_powersports]

Chris Brackney the clamps hold it just fine for mine, just make sure their tight.

[@scruffyjanitor178]

Zarca Powersports thank you!

[@lures]

after installing the new cooler do you need to add any more oil?

[@nickbailey7461]

I know I'm a little late to the party But how did the extra oil cooler hold up after all these years? and did it in your opinion make a difference? I'm buying a 440 and trying to figure out ways to keep it cool

[@adrianrobles23]

It says the link to the cooler can not be found, any alternatives?

[@edgarramirez6757]

Does anyone know the brand or where I can get this oil cooler ??

[@michaelthomas788]

Hey bro instead of adding a another oil cooler to my 400EX I installed computer cooling fans on it that work off of 12 volt that extra oil cooler is cool but how do you get all the oil out of it when you give it an oil change you're still going to have burned oil in there there's no way for it to drain back into the tank so just putting that out there and then how much extra oil did you have to add to the system for that oil cooler an extra quart and don't get me wrong it is a good thing I'm not saying I'm not I'm not trying to be down on your your modification I'm just I'm not going to do mine that way

[@zarca_powersports]

Works the same way as the stock oil coolant, it all falls back down to the engine when cold. I’ve never had an issue with having old oil on my quad after and oil change. Just drain both sides the transmission bolt drain and regular oil pan drain.

[@michaelthomas788]

@@zarca_powersports yo what I'm talking about is the oil left in the coolant in both oil coolers you can't ever get that out or if any metal for an objects end up in there you can never clean them out when I used to work when I used to work on cars for a living if somebody brought me a vehicle with a blown up transmission they'd either replace the radiator to get rid of the contaminants in the tranny cooler that's hooked to the radiator or put an aftermarket transmission oil cooler not using the radiator any longer just to make sure when you put your new transmission none of the foreign body objects that ended up passing through that oil cooler end up going back into your transmission and destroying your new one

[@paulinosrt8]

Hey Zarca Great Video Sir just picked up same Quad Awesome Video hows the Xtra oilcooler holding up Sir?

[@zarca_powersports]

El Junior yes, mine still on there

[@paulinosrt8]

Was looking for same part cant find..🤦‍♂️ do you have a part# ? Also just Subcribed to your Channel👍

[@paulinosrt8]

Just Ordered the Oil Cooler Thanks for the Great Info and Video💯👍💯👍✌.

[@Papisartee]

Do a video on a fan install

[@zarca_powersports]

Ricardo Zelaya good idea! Thanks

[@manny-zbravo9405]

Thanks, destroyed my engine after this install

[@zarca_powersports]

Manny-Z Bravo sorry, to hear that. I’ve done this to two of my quads and haven’t had a problem yet. Might wanna re-check the work.

[@manny-zbravo9405]

I installed it my self, I am a certified tech. I should’ve listen to my instincts since I knew this was going to cause oil pressure issues.

[@zarca_powersports]

Manny-Z Bravo not sure what went wrong but I have an oversized oil reservoir and then installed this and I’m still running.

[@derekjackson3208]

this mod will not cause engine failure. more then likely youve never cleaned the screen in the bottom of the oil cooler an your motor wasnt getting oil. the bottom fitting where the lower hose hooks to on the oil res. is what needs to be taken out an cleaned. all this mod does is allow for more oil, an it cools it twice before going into the oil res.

[@Boogerboys1990]

Bahahahahha that's a good one.

[@richboy3049]

When u did ur 450 shocks did u remove the little nut that's tack welded on or did u grind the shock housing? Thanks

[@zarca_powersports]

The shock housing not the frame

[@Balabana247]

Does this cooler affect the oil pressure?

[@derekjackson3208]

no it doesnt. just cools the oil twice before it goes into the oil res.

[@elizabethsalto576]

Hi panch kaimy

[@jakegunter5892]

You should put a fan on it you can get one off Amazon for cheap

[@jacobhall5776]

Can you send a link please

[@bigbenop]

How much extra oil did you have to add?

[@zarca_powersports]

Just keep adding and checking your dipstick when you run it for a couple seconds. I have an oversized oil pan so it already takes more then the oem

[@bigbenop]

@@zarca_powersports ok thank you

[@lilgruvyskrrrt]

Doesnt this also drop oil pressure?

[@StuntTube]

definitely. cooler is way too big

[@490Adrian]

Stunt Tube good thing or a bad thing?

[@StuntTube]

@@490Adrian bad thing

[@matthewhenry6797]

@@StuntTube It will not affect oil pressure the pump will put out the same pressure no matter how much farther it has to travel. Now when the engine starts I'm not sure if it will take a little longer for the oil to completely circulate as fast as stock which could lead to oil starvation but that should only be for a few seconds on startup. I don't see anything that this would hurt at all.

[@RaisingLionsNotSheep]

Better put a guard on that

[@tanthonyt2007]

This in no way will lower your temps by 30 degrees...not even close. Anyone who has tried this, check your temps where the upper cylinder head meets the lower.

[@irelandssons]

The only thing that looks bad is the cut off fenders I hate when people do that it looks goofy

[@irelandssons]

I feel like a small fan would do more cooling

[@itslegit7362]

Na the surface area is better, plus volume increases too. Witch greatly helps. And don't have to worry about a fan going out will your far away from stopping.

[@owenmiddlecamp6984]

Yes run your quad and then add oil so you don’t get an accurate oil reading cause all the oil isn’t in the oil pan🤦‍♂️🤦‍♂️

[@jeremyh172]

Why do you keep calling it coolant? It’s all just oil...

[@irelandssons]

Because the oil acts as a coolant and a lubricant

[@daver681]

Oh Lord another whisperer trying to make a video, volume up, down, constantly.