Pete, I've had the 400EX now for 19 years. I bought it new in 2002. I have gone through many skid plates, nerf bars, handlebars, and throttles. I've changed out the bumpers a couple times and the rear grab bar too. I keep front and rear plastics on the garage shelf for when the final mounting point breaks and I have to replace a fender. What I have not had a problem with has been the motor. I did finally get the top end redone in about 2015, and right now it needs the carb rebuilt and a valve adjustment, but the motor is darn near indestructible if taken care of. Critical need parts in my opinion; Steering stabilizer, Nerf bars, full pipe and jetting, new hub and carrier bearings, and tie rod ends. After that, a real bumper and grab bar. I will be purchasing a new YFZ450R at the end of this year, I'm deployed currently, but will not sell the 400EX. Instead, I plan to refresh the motor with all new bearings and do a complete rebuild, back to stock! I turn 60 this year and absolutely love to ride still. I enjoy your videos and will likely make your channel my first subscription. Thank you and stay safe!

That’s gonna be the best trail quad you’ll ever own.

You got a frame that’s been painted and a subframe that has definitely been polished. Throw an exhaust on that ol girl and she’ll wake right up

Welcome to the 400ex family Pete!! 🤘

Trx450r shocks, stage 2 hotcam, port work , full exhaust are the top 4 things I would do.

That intro is awesome, really cool how you included the sounds of nature. Nice bike! A very nice addition to the channel.

My first sport quad. First thing first get that exhaust off. New machine completely once it can breath. I had the full Yoshimura RS-3 series. Radiator scoops or air shrouds really helps keep the motor cool. Lonestar axle for a wider stance. Houser racing swing arms. Elka shocks. Renthal fat bars and pro armor front bumper and that was my first sport quad.

Awesome buy Pete ! I love the 400ex . A hard cold start on that unit is an absolute need for a valve adjustment.

Hey Pete, cool to see a "classic"!?! Hard to believe a 400EX was my first sport quad :P I'd have to agree on the HMF for these. Thumpers sound great on those. Would also be interesting to see upgraded suspension. Enjoy the beast!

Awesome buy Pete ! I love the 400ex . A hard cold start on that unit is it’s way of telling you it needs a valve adjustment.

Man I know there are bike out there with more power but a 400ex is the funnest bike to ride. Have fun with it pete.

Sheeeesh that yfz sounds amazing

Awesome camera angles etc. Top quality vid Pete! Glad to see you got a bugeye model, definetely my favorite 400 of all the brands ✊

Wow man, them different angles you shot when you rode that Honda were amazing !!! Keep up the good work Pete.

Up close and in person Pete is a awesome guy and full of knowledge about sport quads. Rev box should be next with your new mods. Love the new 400ex

Super sick video! Best one on KZfaq for this QUAD!

Nice find Pete... Excellent video!!

Nice! I dig all the different video shots and angles. What a great channel🤘

Been waiting for this for year I love my 400

Great video! Excited to see what you do with this bike. My son rides a 2006 400ex great bikes. Please document and video all you do to it. Look forward to your next video.

Hey Pete. A couple of great upgrades for the early 400ex’s is a a full sparks exhaust, in my opinion it’s the best sounding exhaust and it ups the horsepower and torque than any other exhaust out there. The other is a carburetor off of a 04-05 Honda TRX450R, it truly wakes the motor right up. If you do both of those, you will not regret it one bit.

Love all the videos man! Keep up the great work!

You nailed it man, the 400EX is just a fun trail machine. They are affordable, super reliable, and lots of fun.

That is a clean 400EX!! I rebuilt the top end on my last year with a 416 kit and a stage 3 cam still running strong!

Pete the quality of your videos is amazing, keep it up!

Pete. Nice buy! I got 99 last may. It came with some real nice up grades and alot of work also💸. I have a competition HMF full system. Sounds great. So easy to work on. Cant wait to see the up coming videos on yours.

Awesome vid like the quads

Sick shots Pete. Excited to see the 400ex that was my dream quad when I was a kid.

Probably one of the best videos, Cinematic wise I’ve seen you done 👍👍 Lots of effort👍👍

Best runing one I've seen had.. Curtis Spraks Carburetor and exhaust. Stage 2 HC with mild port work. It walked on my 450er with slip on, lid removed well jetted. All around great bikes. My Son currently rides an 01. #dependable

Can’t wait to see what you do with this 400

Definitely nice little machines. I had One of these in my garage today for a valve adjustment and carburetor cleaning. They're super easy to work on also.

Nice unit! Just got myself a near 100% mint stock 03

Super pumped I got one last fall that needed a bunch of work just got to ride it this spring that 450 tho sounds nice!

Congrats! I love the 300 and 400ex. My buddy had a brand new yellow 400ex back in the day. They are fun and very easy to throw around.

people love 400ex’s you definitely need to build it out like your other quads!! i would really enjoy those vids!

I’m looking forward to see what you do with your new 400ex.

man thats awesome and you inspired me to go out and buy my first sport quad and i thank you for that

DAYUM...Great sound quality!!!💯🔥🤘🏼🤘🏼

The best thing about hondas is that you can beat them up and throw them around and they still work and run. They are very tough machines. My dad and his friends owned hondas.

Love the 400ex! Those trails look fun to ride

so cool you just posted this I'm trying to get a 400ex for my first quad great video!

Amazing intro I love the drone shots 🔥

Badass action shots!!!

My dad had been riding his 04ex since I can remember, he bought it from his friend before I was born and it was the first atv with a clutch I’ve riden, it’s still completely stock other than a different battery but I started riding it when he got his raptor and now he’s giving me his raptor and we go up to Michigan for a camping trip and that 400 gets used as work horse, from towing fallen trees to jumping and making new trails. I’ll keep that 400 for as long as I live because I know it will keep running till then

I love my 400ex it's a yellow 2003 bored to 416, love your videos man!

So sick! Also been keeping my eyes peeled for a Raptor and YFZ comparison video. I feel like Pete would have the best insight on this owning both machines, and would make for a great video!

That’s awesome those things are sweet. I have a 400ex and I absolutely love that thing.

MAN THATS SOUNDS AMAZING!! plus i love honda

Great find! Love the 400ex. I would do +2 arms and adjustable axle. 400s ride a little tall in stock form. Enjoy! Will be fun to watch this one!

Ahhh. Just seeing this. Didn’t know if you were apart of the Honda club or not. Good to see, man. Legendary machine there.

hell yea pete i grew up on one of these my dad brought home a brand new 2001 yellow 400ex and i put prob a thousand hours on that machine it was a beast. had to sell it few years back and i miss it i think about it all the time!

Some basic stuff, 416, 11:1 comp piston, stg. 2 hotcam, sparks exhaust, 450r front shocks, 450 carb. CT Racing was able to get 45hp out of a similar setup with a ported head depending on what gas they used.

Def a tusk bumper and tusk heel and nerf bars they are so much fun I love mine man

Nice to see you finally got a used quad

My favorite kinda trails especially the time of the year when everything turns green... Quads looks good bro and that yzf sounds like a machine chopping the woods down 😬😬😬🦾🦾🦾

Pete I Think you should get a grip seat for it, it makes it look even better.

What a nice unit hard to find 400s that clean now and days especially with the tool kit, cap, and battery rubber

I owned a 2001 400ex and all I did to it outside of motor work was +2 front a arms for stability since they are quite narrow. I also had a +2 rear axle. I swapped out the shocks for the honda 450 shocks and that made a huge difference in handling. Also the handlebars sitting a little low (for my liking) i went ahead and installed +2 steering stem and an updated handle bar. Like you said in the video changing the jetting actually adds a little power and responsiveness. Huge fan of the channel by the way, not very many sport quad channels out there that post as consistently as you do.

Nice riding and trails too

the 400ex looks great! love the 450r rippin at the end, sounds mint too!!

That’s awesome!

I love the introduction but is more lovely the 400xe

I love the 400ex one of my favorite atv of era

Hi Pete. That is a awesome quad! My brother used to have one. It was powerful.

I had an 03 400ex stock bore but was port and polished and was an absolute beast

awesome project!!

Sweet 400 Pete! You were definitely ripping it thru the woods! Looking forward to what you do to it! Oh and I know exactly what you mean about it taking a long time just to get them perfect clips! Lol I appreciate that hard work! It was actually a little bitter sweet watching cuz my z400 threw a rod thru the case last week😭😭 lollol but life goes on! This actually makes me wanna fix it but idk...Anyhow, there's nothing like the sound of an exhuast note barking thru the woods! Staying tuned! 💪💯

Just getting bac into four wheelers and I found out about your Chanel and I love the content and I wanna make some content like you once I get my four wheeler going again

Sick quad! Couldn’t be more hyped about it either, i just got back from a ride at St. Joe state park!

Twin row carrier, rebuild and revalve the rear shock, die grind out the stock header welds (gives same flow as an aftermarket header), steering dampener, tires, air filter, and you should be good

Holy crap Pete got a 400ex!! I love it bro. Personally I would have gotten one with reverse but the bugeye is iconic. I'd go with a stage 2 cam, higher compression piston, little port work, 450r shocks, then your bumper nerfs and stuff. I put a +1 alba steering stem with anti vibe clamps on mine. And dude your 450 has turned out absolutely sick.

I have a 2013 400x stock, best all around ride I’ve had. Leave it stock, keep good tires on it and it will outlast everything.

For performance: Slip-on, take off airbox lid, rejet For comfort: trx450r front shocks revalved and resprung, stock rear shock revalved and resprung, full skid plate kit, GBC XC Master tires

Excelent brother. More videos with the honda 400ex please in dunas

Both sweet & the yami sounds awesome

I just repacked my fmf and cleaned the expansion chamber on my lt250r can't wait to get some of that footage up

Can't beat old air cooled Hondas! Makes me want to tear around on my 350X, but am recovering from ACL surgery. I think I would be concentrating on suspension. It's already pretty plush, but could be improved. One thing to remember about the older Hondas is that the rockers require hardwelding for aftermarket cams ( in most all cases, iirc).

Great video as always. Now you got to make a bug eye shirt. I’ll buy it.

YFZ sound crazyyyyy! Kinda makes me want one😬🤘

Dudeee the yfz sounds so goooood 🤤🤤🤤

For the hard cold starts, check jetting as you mentioned and perhaps more importantly check your valves. My 400 ex would do the same thing and intake valves would tend to tighten up over time.

Very nice I had a 2004 Honda 400ex a few years ago there a fun machine for sure then I upgraded to a Tex 450r

Great Video! And no, the 400ex frames did not come in red ... they are all grey (1999-2002) or silver-ish (2003+). They make replica stickers (and that one looks like a replica) of all the OEM production stuff. The OEM factory model sticker has thinner font style writing on it and that one just looks WAY TOO NEW!

Exhaust, nerf bars, bumper, skid plates, trx450r shocks

Been wanting for some Honda content 🤘🏻

I’m glad I kept my 87 Honda 250x

We have two Honda 400's 2008 EX, and A 2014 X, We Love them both! That is one nice Quad! Makes Me want to go out a find Another one.

My lexx mxe pipe is awesome its not to loud not too quiet and really brings out the sound of the quad which sounds really cool

Love my 08 400ex i have a stage 2 hot cam hmf exhaust fmf header and its been bored over to 440 its my first sport quad we clocked it at 90mph love it has alot of torque you can ride a wheelie in all the gears

Great machine

They only came with a grey/silver frame, i have never seen a polished subframe that tool kit and rubber flap is super rare to find, i started out on a 400ex wish i would have kept it fun machine to ride

400EX is an awesome platform. Here's my build. 04 Honda 400EX 416, JE 12:1 piston (runs on 110 octane) Hotcam stage 2 HMF slip on/Pro Circuit header Uni air filter IMS oversized gas tank 450R shocks built by Jet Full Flight A-arms Tusk axle Pro Taper bars Power Madd bar risers MSR clutch lever Glann case saver, chain slide and swingarm bolt Full skid plates Alba nerf bars Alba bumper XFR grab bar Gripper seat cover GBC XC Master tires

I love this channel!

Bars look solid so really all I would put on it is a new exhaust and maybe some new plastic! Love hondas dude!!

Great machine 🤘

I have a 05 EX. We got it a little more peppy and have the Big Gun evo full exhaust system. It’s loud but not tooo loud but sounds great!

good video Pete🤟💯

Gunna be a perfect addition to the channel

Vinyl eyebrows on the headlights is a must have lol