Turning This $1400 YFZ450 Into a $4500 Quad (COMPLETE TRANSFORMATION)

I buy a Yamaha Yfz450 quad in pieces from a subscriber. I end up having to rebuild it. Will it run and drive? #Quad, #Project, #ClappedOut,
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[@bdog4u2]

I'd repack that exhaust. That packing is probably jacked from burning all that oil

[@billybonewhacker]

Yeah maybe he could put all the Drawers back in the carburetor as well. And the spark plug is missing its Sunday bowtie

[@danebowen729]

Nice work! That homemade bumper may have to go to be a $4500 YFZ, however. Haha

[@Anticidal25901]

Not in todays crazy ass market. I’ve been selling some turds for way up there.

[@craigmorgan4676]

@@Anticidal25901 such as?🤔🤯🤔

[@jeremylove1122]

For sure lol that bumber looks horrible

[@2stroketyson79]

@@craigmorgan4676 such as the lies he spews as they all do

[@giwrgosdiesel7932]

For the backfires it may leak the exaust from somewhere and the jets maybe its ok(sorry for my english i'm mechanic from grecce keep the good job)

[@alfredorodriguez4539]

Yup maybe dropping the needle a few clicks since it is running a little lean, or checking for the header nuts they often get loosen after to many times being taken apart or overtightening them makes them come loose, if so try double nuts so they dont move.

[@funtyes1970]

@@alfredorodriguez4539 i didn't hear anymore backfire when he was riding I guess it fix

[@PiazzaWoodWorks]

Got the lean pop on decel, valves are loose too that ticking would shit me. Definately doesn’t sound right. I would go back to oem carb specs and start again. It’s only got a slip on so shouldn’t be hard to get right

[@CesarDRK]

You have to change your water pump shaft. It had some scoring we could see in the previous videos. Mine had the same issue, any minor scoring causes it to leak past the weep hole. I had changed mine to an aliexpress one, it got scored again after some rough motocross track riding.. i think i will purchase an OEM one and try again.

[@travisharvey883]

Yea I had to do the same on my cr80

[@hunterroberts7405]

All these mechanic’s in the comments but don’t even have a KZbin channel anywhere near as good as this guys. Keep up the work and doing you!

[@theblishknovk]

I was thinking the exact same thing. This dude is helping thousands of people learn engine repair stuff and just because there are one or 2 thibgs he night do that some "pros" may disagree withn they shit on him. This channel is amazing.

[@jeffperdigao1820]

Sounds like a vacuum leak between carb and intake spray card cleaner around there see if reves go up.

[@acerig4675]

You need to go back to factory jeting , and then tune idle and tip-in with adjustment screws. And then jet for your pipe later. Also it looks like to me one of them intake valves was sitting lower than the other two.

[@j-beatsimaginationstudio1987]

its a good looking quad for sure. plus, Yamaha is the only sport quad maker currently so all YFZs are popular/valuable right now. Ya, I agree, 4500 for sure. Thanks again for another sweet vid and as always, be safe my friend :)

[@deancooper7952]

Maybe the backfire issue is caused by a small air leak in exhaust front pipe .

[@steveblottenberger1097]

When you pull aluminum bass apart and then your retighten it retorque it it moves around when it gets hot then cold and receipts you got to understand how luminum works with cold temperatures in hot temperatures it moves around a lot and it's got to reseed itself and you have to retorque all them bolts

[@michaelamos2336]

I change that exhaust back to stock that might fix your jetting issue and also if you listen to the video there's a slight tap

[@performanceisourmission9016]

Back Fire me coust by the carb choke had the same issue with mine

[@nickolasvaughn667]

Good job bro but usually me when I tighten a chain I put it tight cuz it'll loosen up right away that's still loose I put it tight tight

[@krotchlickmeugh627]

New piston and rings. You have to hone that cylinder. You can hone a nikacil cylinder bro. Its so hard the hones barely even leave a cross hatch. But its good enough to seat the rings. That glazed cylinder is going to screw you

[@2vintageDeamonFan]

Hey Awsome video man been watching since day 1 every morning before school or after love the videos as always keep up the good work

[@liamjenkins9496]

That popping is most likely from the exhaust

[@braddurham3015]

Awesome brother love the rebuilds you do very cool

[@markaddy53]

nice job lad well done

[@downsouth701]

Good 2 see u started lapping valves. Easy step while u have it apart. A lil added insurance

[@moegreenbl]

Incorrect he just destroyed his valves they're over $100 a piece and they have to be matched fitted from a machine shop. You cannot lap titanium valves you take the coating off then the valve begins to wear extremely fast. Unless this was rebuilt before and those valves are stainless steel and I wasn't aware of that. That's what most people do when they're titanium valves wear out they put a heavier chain usually a stiffer spring and replace the valves with stainless.

[@11GalleryATV]

I don't think you should have lapped those valves ... they are titanium and all you did was remove the coating. You should have just lightly, fine wire wheeled them, to just remove the carbon build up. I hope it works out for you ...

[@funtyes1970]

well seem like it is. and seem like he knows what he doing he get them running every time I think he pretty good mechanic

[@krotchlickmeugh627]

@@funtyes1970 he doesnt. He makes loads of mistakes every single video. But i respect him for trying. But you watch a video where the ATV runs for an hour all together maybe and you ignore the advice of someone who very clearly knows more than you?

[@funtyes1970]

@@krotchlickmeugh627 I don't know seem like he is doing something right with over 250k subs. compare to your 24 subs. lol

[@funtyes1970]

@@krotchlickmeugh627 and if he was doing so bad fixing them dirt bikes and ATV, he wouldn't be selling them. to me he is doing pretty good for himself just got a new house, sound like to me you are very salty for some reason

[@derekmarks1479]

@@krotchlickmeugh627you think he reads all his comments and you also think he hasn’t learned from his comments considering he’ll ask his viewers questions? He also is like what 30 and still learning… there is more than one way of doing things… you’re way or the high way may work with your wife and kids but in the real world there are many proper way of doing things not just the way you learned…

[@grantpiper3424]

Have you tried adjusting the fuel screw I had a similar problem wirh a backfire and the fuel screw adjustment was the fix...

[@dwainmowatt3058]

Are there any cracks on the intake boot.

[@krypto-noob397]

honestly brother you should lap those valves until the noise when grinding is little to none

[@Buff_Dave_Oprtr]

Idles perfect to me.

[@emilchristiansen8678]

Hi back fire is almost for sure because its a little Lean on the jetting not much But a little Nice work man

[@isaiahjohnson3566]

i have that same exhaust on my 03 kfx434

[@2vintage]

It's pretty nice!

[@mrpenland]

look for small exhaust leak may be sucking in cold air and maybe change the plug

[@bradysmith5969]

If you have a manual for it it will tell you what to jet it for your elivation

[@ziahjessop978]

Do you know how to titen valves on the 400ex

[@keithseiwert2256]

PLEASE RESPOND...what bad things about wiseco??

[@robertbeckett870]

When deglazeing with a green pad you must do it in a X pattern.

[@drewdew6874]

Good luck with that

[@mauriciorevillaa.7181]

Hey bro! Buy an another TRX 450R 04-05 doing a complete engine build explaining step by step, it would be a great help :(

[@hi-kb4cw]

Why won't you run proper heat cycles?

[@2vintage]

I did!

[@hi-kb4cw]

@@2vintage oh ok I just heard you saying ill just take her easy for a bit. So I was thinking my man run your heat cycles first! glad to hear you did run them though. Pretty important step😂

[@garywynegarsvikingrc843]

Nice but you should have left the Metal Mulisha sticker on it

[@wvatvrider2353]

You don’t have to seat the valves on a Yfz they have titanium valves I have three of them and I have never needed to do that when putting in valves

[@sufio454]

Why tf is there no snow there’s like 5 feet where I live

[@thatboyknate]

ONE OF THE BOLTS ON THE SPROKET IS LOOSE!!!!

[@marshallrubens3182]

You should do another trx 459

[@jonathanjones6657]

There are beaches in the Maldives that glow in the dark.

[@Jesse-lu7bt]

Get a set of tri mics or a set of teliscoping badges set od mics set of inside I'd mices staret michatowas

[@patverry8926]

FFS Joe did you really only do 2 of the 5 valves also it is the inlet valve seals that can cause smoking issues not exhaust Pistons are oval and tapered so clearance is mesured at bottom of skirt 90 degrees to the pin also do not set ring gaps in line with major and minor thrust faces that pushes the gap ends harder against the bore a little education on basic principles goes a long way !! also backfiring on overrun is caused by the header pipe sucking air at the head or muffler joint DONT BE LAZY!!!!

[@jognlohfd2378]

ALL HELP APPRECIATED (03 yz125) Can anyone help me figure out why my bike isnt getting fuel through my carb... I did a full rebuild on it, float moves freely and i set it to where it needs to be, and she still doesnt get fuel through the carb. When I spray into the carb it kicks. Also it leaks fuel from the front of the engine block looks to be a seal problem. (compression is fine)

[@maritimetuners6414]

Just me or does that have a pretty loud ticking sound.

[@bobbyhill1176]

I was wondering the same tbh not hating or bagging on his work but I did notice it too

[@maritimetuners6414]

@@bobbyhill1176 Yea almost sounds like valve ticking or piston slap.

[@mikecal516]

I don’t know about a 4500$ quad. Like 3-3500$

[@Chris_yfz]

bro put a cp piston or wiseco, prox is trash

[@christopherhurtle7167]

I sure wish I could find one of them wives Deeds for that price that you paid I could fix it just like you but everybody out here where I live want 2,500 to 3 Grand for a blown up one

[@jeepguy518]

I think there is something funky with that carb,the fact that it came with two has me suspicious.

[@funtyes1970]

lol why really dude.it don't matter he won't own it for long it will sell

[@mattsimonds2205]

"Ive been hearing bad things about wiseco lately" proceeds to pull pro x piston out ...."whys it so tight in there" thats what she said .... Second guesses himself . shoulda bought a wiseco lololol

[@jmudd5449]

Wiesco makes pro X

[@Rktman129]

Sounded like your axle is bent went you went down the road

[@2vintage]

One tires was off the bead I noticed

[@Rktman129]

@@2vintage much better than replacing the axle 👌🏼

[@nickdaniels4347]

I'm on legro 84 and 86 honda fourthax 200sx f and 200es big red is four sell there for all to see name is nick Daniels

[@louisjohnsonjr.4934]

If its coming from the over flow then it may have been working out the bubbles in the system and may have been over filled. So that may not be an issue.

[@ballistic1253]

That’s definitely not worth $4500. He’s trying to sell it for that and it’s been up for a week to prove my point

[@muzz4kt594]

Didn’t ask tbh

[@larrywarner9314]

Dude use a flex hone 320 grit there made for honing nickesil cylinders

[@matthewanderson7766]

Ya watching him rebuild it no hone or new cylinder bolts they have degrees for a reason to stretch old ones are already stretched

[@staind288]

It sounds like the CDI isn't advancing spark upon increase of throttle / engine speed.. Might be why backfiring

[@scottallman9324]

Really should have had new sprockets with the chain they are badly worn. Is the backfire an over fueling issue as it's normally unburnt fuel in the exhaust unless the timing is slightly out somehow

[@carterm8035]

Title should read “turning this $1500 quad into a $1500 quad”

[@mikespain8655]

I can't see it being worth $4500, but it turned out nice.

[@carterm8035]

@@mikespain8655 looks nice, but the motor sounds like hell

[@4edan293]

@@carterm8035 honestly all ATV motors have a lot of engine noise I’d say it’s fully normal

[@jerrywilcox9890]

@Carter M lol normal noise so what are you talking about.

[@bikelifemarty419]

What’s that tool called you used for the valve seat width

[@jmar3956]

Nice job man! Only think I can say is you put your masterlink clip on the wrong way the round end (closed part) should facing the direction of orientation to prevent the clip being knocked off

[@funtyes1970]

lol yeah ok Mr. expert.

[@jmar3956]

@@funtyes1970 my qualifications would say so yes thanks 😁🖕

[@joeypooschke7914]

NICE JOB!! I live in Oregon, todays market where I live 5k to 5,500k for the YFZ450, our market has blowing up the past 3 years everything from SXS quads dirt bikes have skyrocketed to a all time high. Everyone wants to ride the sand. Dunes now and take advantage of our awesome riding we have here in Oregon. Our sand dunes are the best in the USA..

[@Derekmoss82]

Beautiful quad and again killer video man you have some of the best build/fix videos on KZbin I’ve been watching and subbed for almost 4 years now and haven’t missed a video yet great job man you give sabo a run for his money

[@masonkermicle9534]

The transmission is already broke in you could shift if you wanted to

[@project4stroke876]

I wanna see some old 2 stroke dirtbikes! Mostly CRs.

[@johnscovel3170]

engine sounds terrible ticking noise !!!!!!!!!

[@george31380]

There should be holes in the carrier bearing housing on the sprocket side i use a nut driver that fits in the hole through the sprocket spokes then rock the quad forward or back using the force of the sprocket bumping the nut driver to adjust the chain so not to scuff up or to avoid beating on a screwdriver its easier especially if its stuck in place and needs persuaded. I had my water pump seal leak after fresh rebuild 1 time and that was it weirdest thing. Just a thought on the decel backfire I had a aftermarket pipe that was not perfectly round at the head where it mounts and wasn't getting a good seal at the gasket ended up shaving it down on the hi spots so it seated to seal up decel pop went away.

[@connorbrundage4612]

Was coming into the comments to comment this but you beat me too it

[@ALDA2479]

Backfire is usually a sign of lean yellow flame shooting out is usually to rich but I've had issue with popping just from needing a new exhaust gasket or headpipe not being tight enough

[@karlomihaljus]

Leaking coolant because you need to change wather pump selas, I have a same problem. Nice video

[@peteraitken6494]

Great job joe sounds brilliant don't no where all the negative comments come from I think you've done an awesome job on this and yeah it is worth the money take care mate and all the best 🔧🔧👍👌🔧

[@rctodayukshaun4817]

Try adjusting the fuel screw bet it cleans the poping up should of done that before messing with the jetting

[@peytonbrown5830]

Seeing you post a video is always a highlight of my day

[@Allan-jy7ue]

Same m8. Always look forward to a new video

[@askfadzean]

me too its currently 3am i watch them before bed :)

[@snoweymatthew]

Always change your sprockets when putting on a new chian otherwise its pointless it just restreach to the old shitty chain good vid tho keep it up

[@matthewschroeter9045]

My drz125 is having the same problem with the backfiring I don’t know what it is tho I cleaned the carb and made sure the valves were in spec and still it backfires. If anyone could help it’s a 2021 it just randomly started happening it has good spark and gets good fuel flow.

[@MAD450r2]

Just a test but that exhaust maybe causing the backfires. try your other yfz\s exhaurst if it runs betting pickup a pipe or silencer for replacment. JUST FYI

[@JacobEcret]

im going to say that quad is running too rich. going off the 158 45 stock jets, being in Wisconsin at 1000 feet and around 0 degrees F the jet recommendation is 164 44, 2 turns. my 2005 yfz 450 se was acting the exact same way, come to find out the privious owner jet it to 178 48, i brought it back down to 165 45, 2 1/2 turns, runs good now. used to pop on decel, die at idle.

[@reggiexp69]

6.5ah man that aint strong buy a 8AH for sure my moms 300cc triton had a 11ah battery that thing was great never a power problem to start i use 8ah minimum on my 450cc hell i even use a 8ah on my 300cc quad all my quads got 8ah if there is space, only chinees quads have space for tiny batterie so i use 4ah and those always die if you dont recharge it every 4 weeks...

[@brianbaird3]

Not the metal militia stcker

[@metalkingforever420]

Ironically pro x pistons are made by wiseco lol

[@2vintage]

Yeah they seem a lot better though!

[@johnscovel3170]

its going to ring seize!!!!

[@sugashizane]

Good shit bro! I love your videos. Did you ever put in an oiled air filter? No air filter will cause it to lean out and backfire. It's real close to being 100%

[@joedurt3364]

Joe I just bought same bike as this At night I notice the header pipe is glowing orange . I checked the plug and it doesn't appear to be running lean. Any ideas ?? I need to check the jets probably?

[@shanewilliams8768]

Wiseco is better than pro x all day every day man. In fact wiseco owns pro x. For cranks it doesn't matter which you buy. If you buy a wiseco crank it will still come as a pro x. As far as the piston side goes. It's wiseco all the way

[@Eric-jf6ee]

Could be still running lean. Start it and rev it up and pull the choke out to see if it still backfires.

[@joneserupinsmoke9161]

New sub .bro I'm really liking ur clips so far dude I'm gna have to back track and catch up 👍👍

[@seanreid5152]

I didn't see a rod bearing when you put the piston on

[@michaelamos2336]

You fixed your own problem without even knowing it you said no backfiring while riding it that means you need to repack the exhaust

[@matthewanderson7766]

I think with some new tires and the idling issues and leaks fixed it be worth 3500

[@jayemlov]

Nah, heads ticking like crazy. It’s boutta go.

[@motomadness2908]

Hey my 50cc 2stroke moped starts when i put gas in sparkplug then dies i changed reeds but i dont know whats wrong i cleaned carb in carb is fuel but its looks like it wont go in cylinder

[@BramVanhautte]

Do you have to divide the clearance by 2, because the clearance on the side you are measuring is maybe 0.003 inch but the other side is 0 at that moment (because you push the piston against the cylinder). Shouldn't there be 0.002 inches clearance on both sides at the same time?

[@Carl223]

Should be using telescopic bore gauges and micrometres for a lot of stuff he does. Not feeler gauges and clapped out digital vernier calipers.... The list goes on. But I agree. Clearance should be overall not pushed to one side. And even if he had feelers won't tell him if the piston and/or bore is out of round in spots. He makes enough money from flipping them and KZbin to not be using claw hammers and old sockets to drive seals in. But splurges on tooling in other areas. Strange cat.

[@fullmetaljacket7]

@@Carl223 the hack job side of it is what makes me want to watch his videos lol I find it pretty funny!

[@Carl223]

@@fullmetaljacket7 the lolfactor haha

[@Derekmoss82]

What I have done when I ordered the piston that was tight like that I actually just slight ran the hone it the cylinder it really didn’t change the gap but made for smoother cylinder surface and better compression

[@Derekmoss82]

I did that instead of filing the rings

[@clemcon501]

I was thinking this

[@paulhemmy8223]

new piston and rings...its called a grace period for break-in. Do not rev it. You should know that.

[@steveblottenberger1097]

Wiseco piston company's been out for a long time that's the first I've hear you say you hearing bad things wow

[@bryanw2400]

If the valves were leaking the vaporlocking effect from the leaking headgasket may have bent the valves?

[@rontarr4661]

Well you just answered my question if I would have continued watching

[@Nighthawk1966]

Very well done on that one. You stuck with it and saved it. Way to go Joe !!

[@rico6249]

Insane quad🔥 I hope you will build a 250 or 450 sometime in the future like crf, kxf, rmz or yzf! Would be cool to see those bikes on the channel!

[@ghostedfoxbody]

The 06 needs a oil line added to the other side of the head. Yamaha fixed it on the 07.

[@flickeronthedashboardstudi5126]

Already know this is gonna be a Great video Joe!!

[@dietznutz1]

Joe mama

[@christopherwalts9378]

Backfires when I gets fuel when you let off the gas when you're going down the road it means you getting too much fuel in it

[@johnscovel3170]

your f@cking dreaming 4,500 ,not a chance in hell !!!!