I love all your videos big fan .I been watching for long time when it was u and your brother. Keep up the good work. Ya and don't listen to those haters they love your channel that's why they watch lol .
Top end overhaul(piston & rings), also change the valve guide seals and make sure valves are not stretched/tuliped from getting the piss ran out of it. Get another Wiseco piston kit, they are inexpensive and work well. Great video!
Those Piston rings(oil ones) are toast, it was funny when you said they are good. Cmon man white smoke is almost always a symptom of wore piston rings.
Itd be hillarious if you did one of these live. Get chuck to moderate and block trolls. Let your subs chime in as you work on a bike. Can u handle that chaos?😜 might be fun tho ... or infuriating 😖
I just had to rebuild my entire engine. It was ticking very bad because the piston was scored badly. Everything was scored badly from lack of oil from previous owner. It was so simple to fix!
Caught up on not knowing basic theory again, TDC happens twice, once at power stroke (where you set valve clearance) and again at valve overlap ( end of exhaust stroke and beginning of intake stroke) where you do NOT set valve clearance!!!
Great video! I recommend you to get a leather mallet because it can deliver force like a metal hammer but it causes almost no damage like a rubber one. Also, it doesn't bounce around like a rubber one. My dad gave me mine and I use it all the time. Otherwise, keep up the great work!
It's been leaking oil through the gallery out the side and in to the combustion chamber that's why it's burning oil, the gasket didn't fail it just wasn't dolted down to spec
Take the intake valves out they are notorious for tuliping and you can get a 450 timing chain a lot cheaper. I've built a bunch of these over the years.
That thing is clean... it’s a shame it runs like crap. Not knocking your work, but I would have done a compression test on it before I tore it apart. Hope you get it running good again. Can’t wait to see part 2. it’s a nice quad and that’s coming from a Yamaha 2 stroke fanatic.
You can hear that timing chain whine bad when you rev it up. Or at least that’s my guess of part of what’s wrong with it.(only watched just the beginning before posting this)
Within 15 seconds of that bike running I can tell you exactly what is wrong with it the ticking is the valves out of adjustment on those bikes it's just set screw and jam nut so there's no shims or anything like that it's a feeler gauge set them at spec in a way you go as far as the smoking that's a piston rings if it was a valve seal leaking it would only smoke when it first started up so what needs to be done the top end needs to come off it needs a new piston and ring home the cylinder grind the valves and a gasket kit
Those valve covers are notorious for cracking. People often try to force that mounting bolt through when things don't line up properly and they end up cracking.
Nice quad once you put a new piston and rings and hone the cylinder and a new gasket kit. It's a Honda it will run like a champ like to see a full speed pass keep up the good work joe you do good work I don't care what any body else says . Take care bud and stay safe god bless you and your family btw you and chuck should race between this quad and the other one you fixed. Take care and peace out.
If you're estimating those score marks at 0.5mm you are looking at a rebore and oversize piston. Going to be a lot cheaper than buying a new cylinder and you know its all going to be good.
Clearly you have not drove anything better than an ex400 and LTR 450 would eat any EX 400 even with a big bore kit an ex400 is like a beginner four wheeler other than there really knows light and they like to wheelie but Wheeling isn't fast
Dam man you find all the cool stuff that was my day dream quad in high school that color to hell I still want one maybe one day but for now I'm gonna go abuse my rm 125
Sounds like u need a new carb also they are very cheap for after market I recommend a aftermarket carburetor also I think u can just Tim the timing chain i don’t think it needs a new on but if u want u can get a new one also u have a Exhaust leach I would get it fixed
this is one of the better looking quads i dont know why i miss my old 1987 250x turd im 6ft 300 pounds im sure it doesnt miss me lol i should of had one of these but i dont think the honda hs reverse like the kaw n suzuki did did they
I have a question I have an 05 400ex it’s goes through all of the gears properly and it has power but in second gear when I try to wheelie it even on high rpm it stalls out and it only lets me pop it up in first gear does anyone know why it would be causing this?
I am looking for a sporty quad that has 4wd but not a utility quad. I pretty much want a quad that is kind of sporty like a 400ex but 4we? Can someone help me out? I love sport quads but ride in woods, farms, trails , and creeks.
![⚔️จำกัดเวลา⚔️ [พากย์ไทย] ซอร์ดอาร์ตออนไลน์ ซีซั่น 1 - ฉบับมัดรวมทุกตอน](http://i.ytimg.com/vi/ohkfBVDXLSA/mqdefault.jpg)
![ตีสิบเดย์ [FULL] | อาจารย์โอเล่ ญาณสัมผัส ผ่าดวงคนดัง ประเทศไทยจะเป็นยังไงหลังจากนี้!](http://i.ytimg.com/vi/gszT2O76fL4/mqdefault.jpg)
Please SUBSCRIBE and LIKE the video if you enjoyed! It really helps me out a lot!
Check out my Instagram:2_vintage_
Thank you for all the support!
I love all your videos big fan .I been watching for long time when it was u and your brother. Keep up the good work. Ya and don't listen to those haters they love your channel that's why they watch lol .
Previous owner was a CBOYS fan I see😂 hell yea
Yes I am
Btw I still own it
@@coltonmoodie3501 why's he got it in vids then?
@@coltonmoodie3501 How did you manage to clap out a 400ex they are hard to kill
@@tpghl5225 full sends or no sends lol
Im possibly purchasing a very mint 400ex this upcoming week a 2001
Good luck 👍
@@swiji7198 ur mom
Fix that exhaust leak for sure. It makes it really hard to tune. The ticking is almost always the timing chain tensioner.
Top end overhaul(piston & rings), also change the valve guide seals and make sure valves are not stretched/tuliped from getting the piss ran out of it.
Get another Wiseco piston kit, they are inexpensive and work well.
Great video!
Those Piston rings(oil ones) are toast, it was funny when you said they are good. Cmon man white smoke is almost always a symptom of wore piston rings.
That’s what I’m saying
I'd hone that cylinder before ordering a piston kit you might have to bore cylinder to next size piston
AN UPLOAD THE SAME TIME AS MUSTIE?.... Now this guy's just messing with us lol
Watched mustie1 and fuzzy dice right before this haha
mustle and vintage are leading the way..... these 2 guys are so genune
400ex is my absolute favorite. It's what I learned manual clutch on lol
Same here
i learned on a banshee😂
@@haydenn.5800 I learned on a busa 😂
@@haydenn.5800 lucky you are still alive
Definitely have to find the missing piece of the piston, it's most likely hiding in the bottom end.
Itd be hillarious if you did one of these live. Get chuck to moderate and block trolls. Let your subs chime in as you work on a bike. Can u handle that chaos?😜 might be fun tho ... or infuriating 😖
His career would be over
@@thomasgu3281 he would get ROASTED the hole live
I just had to rebuild my entire engine. It was ticking very bad because the piston was scored badly. Everything was scored badly from lack of oil from previous owner. It was so simple to fix!
Nice job diagnosing the engine 👍
Caught up on not knowing basic theory again, TDC happens twice, once at power stroke (where you set valve clearance) and again at valve overlap ( end of exhaust stroke and beginning of intake stroke) where you do NOT set valve clearance!!!
Yep and what part did I not know? I set it to tdc a d made sure it was on the correct stroke.
Great video! I recommend you to get a leather mallet because it can deliver force like a metal hammer but it causes almost no damage like a rubber one. Also, it doesn't bounce around like a rubber one. My dad gave me mine and I use it all the time. Otherwise, keep up the great work!
If you have any bolts you think might break, try heating them up a little with your heat gun, before loosening them.
Is it really a 2-vintage video without the whole in the gloves. Keep up the amazing work.
Good thorough process of elimination and good find on the underside of the piston 👍🏼
You're looking at the casting marks as cracks it's actually fairly common for that top mount to be cracked but that doesn't go to the internals
You should soak the bolts in pb blaster and leave it overnight if you want to break less bolts heat always helps to
It's been leaking oil through the gallery out the side and in to the combustion chamber that's why it's burning oil, the gasket didn't fail it just wasn't dolted down to spec
Take the intake valves out they are notorious for tuliping and you can get a 450 timing chain a lot cheaper. I've built a bunch of these over the years.
You should do a shop tour/ tool box tour. It would be nice to see what you got to work with
That thing is clean... it’s a shame it runs like crap. Not knocking your work, but I would have done a compression test on it before I tore it apart. Hope you get it running good again. Can’t wait to see part 2. it’s a nice quad and that’s coming from a Yamaha 2 stroke fanatic.
You do ring gap at the upper part of the cylinder. Cylinders are slightly tapered.
You can hear that timing chain whine bad when you rev it up. Or at least that’s my guess of part of what’s wrong with it.(only watched just the beginning before posting this)
been a huge fan for years man keep killing it your a badass mechanic!
I put the exact same tires on my DS 650 .. handled awesome !! Nice looking quad Man.
I'm not a quad guy but this thing lowkey looks fun to ride.
Super easy to ride and very reliable !!
It is
Within 15 seconds of that bike running I can tell you exactly what is wrong with it the ticking is the valves out of adjustment on those bikes it's just set screw and jam nut so there's no shims or anything like that it's a feeler gauge set them at spec in a way you go as far as the smoking that's a piston rings if it was a valve seal leaking it would only smoke when it first started up so what needs to be done the top end needs to come off it needs a new piston and ring home the cylinder grind the valves and a gasket kit
Those valve covers are notorious for cracking. People often try to force that mounting bolt through when things don't line up properly and they end up cracking.
A piece of cardboard to put all the head bolts in takes the guest work out of where they go back
Pro Tip, put all bolts back in without tightening, each bolt should have equal amounts of shank exposed. no guess work, no cardboard
Nice quad once you put a new piston and rings and hone the cylinder and a new gasket kit. It's a Honda it will run like a champ like to see a full speed pass keep up the good work joe you do good work I don't care what any body else says . Take care bud and stay safe god bless you and your family btw you and chuck should race between this quad and the other one you fixed. Take care and peace out.
Your favorite model man . You should throw a 12:1 wiseco piston in there and a stage 2 cam . That thing will fly . Jet it to the moon
Do a big bore or oem parts
ive noticed 400ex smoke a lot on cold starts
we need a collab with cboys u could be there personal mechanic for all the things they break 😂
that would be to much work, they break shit every day
good call i would say they had the oil ring in a bind easy to do
Good job joe well spotted on the piston once renewed should be Good to go look forward to follow up 👍🔧🔧🔧🔧👌
If you're estimating those score marks at 0.5mm you are looking at a rebore and oversize piston. Going to be a lot cheaper than buying a new cylinder and you know its all going to be good.
7:54 Tap Dead Center. Lol every time you say Top Dead Center....my brain says *"TAP"* 🤣 that Wiscansin accent.
it’s got the nice cboys sticker on the front
Wondered if anyone else knew them lmao
Autozone sales some bolt head removers , saved me a lot
Of time with rounded bolts
bro how do you find the stuff you do i’m 14 and 135 my last bike was a honda xr 70 and i just can’t find a size up for a reasonable price
Hey bud either the smoking problem is coming from the spark plug fouling or your piston rings and valve seals are shot
build this one do 416 kit 11.1 comp and stage 2 hotcams
440 is better
400ex is the best
Yes
No......
I wouldn't call it the best but they are good reliable quads
Clearly you have not drove anything better than an ex400 and LTR 450 would eat any EX 400 even with a big bore kit an ex400 is like a beginner four wheeler other than there really knows light and they like to wheelie but Wheeling isn't fast
The only good thing about them is there a dime a dozen and cheap to get parts for
At first when you started it it sounded like the timining
No valve cover gasket, it’s hondabond from the factory
you should make your titles "teenage mechanic rebuilding 400ex"
good stuff joe
Can you do a can am outlander or something It would be awesome
He rebuilds quads there isnt alot of can ams that need rebuildin out there
Do a trx450r again I’ll like to see one kinda race ready
Dam man you find all the cool stuff that was my day dream quad in high school that color to hell I still want one maybe one day but for now I'm gonna go abuse my rm 125
Sounds like u need a new carb also they are very cheap for after market I recommend a aftermarket carburetor also I think u can just Tim the timing chain i don’t think it needs a new on but if u want u can get a new one also u have a Exhaust leach I would get it fixed
A fcr carb would weak it up a lot
It looks like you are measuring the ring gap near the bottom of the cylinder. Is that where the manual indicates it is measured?
id love a 400ex like that! yellow, HMF exhaust! that is exactly what I want!!!!
Can u Do a collection video plz plz plz?
You need some more suitable tools I've removed hundreds of those timing caps as long as the right Allen key head is used
It was already stripped halfway out.
As soon as you tried starting it I immediately thought, "carb clean, clogged Jetts, valve float, and low spark"
I'd replace that piston with a prox piston kit
Now I want a 400ex I heard there good bikes and my cousin had a few of them
this is one of the better looking quads i dont know why i miss my old 1987 250x turd im 6ft 300 pounds im sure it doesnt miss me lol i should of had one of these but i dont think the honda hs reverse like the kaw n suzuki did did they
07 and up have reverse
You didn’t tell us what this one cost you, in this market would be interested if you got a deal on it or not
He is rebuilding it for some kid, the kid commented on one of the other comments.
@@dannyo126 so he’s a mechanic does it on the side ?
2vintage one question all quads and dirt bikes have fuel tap?Greetings from Serbia!
I have a stock piston and ring that I don’t need anymore if you would like it.
Yes it's a nice looking 400ex
Let’s go more 400exs
Yellow looks better than red
What’s that little blue sticker with a date that he’s got on it
Finally got my 400ex from the shop after like 3 months of the guy holding it
What happened to the raptor 660r
Never clicked on a video so fast
1 min in no compression
Morning joe!
You got any 1980's suzuki dr models?
Check the compression, if you don't have a compression tester.....we will be giving out tools and oil change kit when we hit 40 subscribers :)
I was waiting for this one, it is a nice ex awesome video man
Give it some more power maybe a hot cam?
Hey you have bad blow by from the oil rings you will loose compression from the burnt rings
on the first valve you couls see a gab beside it twords you could see light on the other side
I thought the same same but kinda looks like oil in the vavle and the light shining off of it making it look like u can see light on the other side
@@davidkirchner579 maybe not seated may be seated the world may never know
Is that one of those namura pistons cause I had the exact same thing happen to my Kfx same spot on piston and same ring
That is a nice quad
How’s this quad going?
instead of 25lbs they got lightly snugged to 2-5 lbs lol
Really makes me want to buy another one lol
How much for it?
Feels like deja vu
To me it found it lower compression or the starter
Looks insane
Where do u find all these I’m trying to find a dirt bike
Where did you get the back axle for the the red 400ex
PLEASE KEEP THIS ONE. It's got a bunch of aftermarket on it so no reason why you shouldn't!
Its not his he is rebuilding it for somone
1" down from thehe top of the cylinder is were you check ring gap
Nice vid bud👍🏻
I love your videos man
I have a question I have an 05 400ex it’s goes through all of the gears properly and it has power but in second gear when I try to wheelie it even on high rpm it stalls out and it only lets me pop it up in first gear does anyone know why it would be causing this?
Did you just buy it off Facebook market place?
Yours or a customer's???
I am looking for a sporty quad that has 4wd but not a utility quad. I pretty much want a quad that is kind of sporty like a 400ex but 4we? Can someone help me out? I love sport quads but ride in woods, farms, trails , and creeks.