Oh man thanks for the compliment I appreciate it and also thanks for watching!

Thanks! 😂

Your welcome! Nice to hear this. Thanks for watching and hope you stick around!

@UpAllNight91 hey mate one question I have is there much difference in the rebuild process of the 2021 to the 2022 yz450fs

@@aussie_mt_09_sp46The 2021 and the 2022 is pretty much exactly the same. You will be good.

​​@@UpAllNight91 I'm not a mechanic but is it the same for a 2018 yz450f

@@kohatutata1603 Very similar. Only a few very minor differences.

Thanks man! Appreciate that, and thanks for watching!

On man thats too cool! Let me know how she turns out and if you have any questions along the way. ;)

Hey man motors in, heads on all complete, went to try kick start it and wasnt having any luck, i found that the clutch wasnt disengaging when in gear, pulled clutch cover off and clutch basket out to check rod movement and i cant get the clutch basket back in! Tried for an hour or so! Is there a trick to lining up the gears for it to seat fully?? Thanks alot!

@@sbarnett6720 I usually just spin all the gears and basket and all that till it lines up with all the gears and slides all the way down. Its easier to do this with the inner clutch cover off so you get full view and access. Hopefully that helps

Ahh thanks man! I appreciate it and appreciate you watching! ;)

Thank! I try to put these together so people can follow it step by step and get through the job.

Awesome! ;)

Yes sir. About the same! Nice work!

Thats too cool! Glad it helped and thanks for watching! Good job!

Thanks! Glad to hear its helping!

Thanks!

Yeah, hard to beat OEM parts for sure

Your welcome. Congrats on your first rebuild!

@@UpAllNight91 I bought a new cylinder head and installed it and put in my old cams to test my compression and the intake left a small mark that I can feel with my finger nail it’s really small but will that ruin my new cams going in? I was being dumb putting old ones in to test it not thinking

@@UpAllNight91 I scratched my new cylinder by hand turning one of my old cams on it will it damage my new cams it’s one scratch I can feel with my nail just don’t Wanna ruin anything I have brand new everything

@@spongebobsi2iispongebobsi298 Can you email me some pics of what you have going on, email to upallnight91@hotmail.com That why I can see whats happening

@@UpAllNight91 ok I sent the email hopefully it’s good

Your welcome and thank you sir!

Thanks!

😎 Thanks for watching!

Me too and I just finished it 🤘🏽🤘🏽🤘🏽 How did you come about finding out you forgot to align the counter balance sprocket @upallnight91 ??? Did it run weird?

Right on. If any questions come up let me know!

Thanks! Appreciate you watching!

Your welcome, thanks for watching!

Thanks man!

@@UpAllNight91 you’re welcome man!! I’ll be uploading some videos here soon. I just finished a build on my 2017 Yz450f. 99mm big bore(468), hot rods crank with a Carrillo rod, Hot Cams Stage 2. Dynojet Power Commander 6. With a ton of other odds and ins to help keep it cool and make it last

@@FleXyz450 nice man!!!

Thanks!

Thanks man! And thanks for watching too!

Thanks man!

LoL. Yeah I, good thing I caught that or that thing would have vibrated like crazy lol. Hopefully they get your bike back up and running quick and well

@@UpAllNight91 none of Yamaha's suggestions have helped. The mechanic says the crank is spinning freely. I'll keep you posted when they open it up.

@@raulx.garcia9387 ok. Yeah once opened it should be obvious

It spun a rod. Yamaha doesn't want to back it up and the shop is quoting me $3900 including the starter and starter clutch it didn't need. What do you think? I'm in Colorado. Thanks!!!

Thanks! And oh man I dont even really know. I say it one way and I'm corrected so I say it the other way and the same. I too want to know lol.

Thanks. Yes the wr450 is pretty much the same motor.

Yeah. He stripped out his drain bolt on his previous bike so on this bike he was putting it but not torquing it down good enough, so it vibrated out.

Must have forgotten the crush washer

@@user-if3ww8tm4yFor sure could be the case.

Yes sir! Will surely help. Here is a link to where you can download your bikes manual for free from yamaha so you can get the head torque specs and you will be golden ( I think 2010 uses slightly different torque specs than the 2021) www.yamahamotorsports.com/yamaha-manuals

LoL. Dont strip them out though

Hello Shoot me an email at upallnight91@hotmail.com

Hello. Most the tools needed are basic hand tools. Tools are never a waste of money and can be around for life. The only "special " tools needed for a basic rebuild on a MX bike is a flywheel puller and a torque wrench. As you will see in my videos not even case splitters are needed. Just collect up on a good assortment of hand tools, sockets. Wrenches, Allen head tools and run out and buy as you find you need. They last a lifetime

Yeah, gotta be more careful for sure.

Thanks! Appreciate you watching!. The cam journals? They should stay as good as new as long as oil changes are kept up and she never starves for oil. Is that what you where asking about?

Hello. If you check the video in the link below I have a video that should walk you through it pretty well. Its for a YZ250f but its the same steps as the YZ450f. Let me know if you have any questions. Here is the link kzfaq.info/get/bejne/fptmpJV70siukqs.html

Ahh. I did not know that! Thanks for that info😊

I would have spun the crank while the top end was apart to feel things but we are past that now. Hmm. I'm going to get you have a lower rod bearing going out and causing drag. Its the most common I find when things like this come up. I would start by pulling the top end off again and checking the lower rod bearing real well. Holding the timing chain up and spinning the motor, checking for drag and how she feels. You may end up having to go into the bottom end but I would start by pulling the top end and checking there first

Hello. That does happen sometimes and no worries. It wont hurt anything tapping it to free it up. Thats what I do when I need to. It happens and everything will be ok.

Hello. Even if riden like a street bike they will still have tighter service intervals than a normal street bike. They only hold about 900cc's of motor oil and oil will need to be replaced about every 3 to 4 hours of run time. They dont have a cooling can like a normal street bike so the bike would need to be shut off if sitting at a red light in the summer months. A aftermarket fan can be added to fix this issue though. But overall maintenance will be higher than a normal street bike because it is designed to make a lot of power in a small package carrying as little weight as possible.

Thanks! I personally have not seen a problem with the 2020 to 2022 YZ450 cranks or rods. The YZ450s in them years that I work on have been pretty solid. I do suggest replacing the crankshaft with the rod every 200 hours on a track bike but at 67 hours you should be good to go. And when its time to replace it I would suggest OEM for sure.

@UpAllNight91 that's what I figured. I'm pretty meticulous on maintenance and so far it's been completely solid. I did do a top end at 50 hours (which turned out to be completely unnecessary) and everything in the bottom looked good...nothing had any play whatsoever. Thanks!

@@grego67 Yes sir!

I havent seen that yet on the newer yz250f but a few years back I use to do a lot of motor rebuilds for the bike life guys around here. They wheelie the bikes for miles lol. I would find worn oil pumps, and the motor showed signs of oil starvation. Often times the lower rod bearing would go out due to oil starvation and cam journal wear. When these 4 stroke bikes are wheelied for a long time all the motor oil goes to the back of the motor and the oil pick up screen is unable to pick up oil. On some of the bikes that kept breaking down due to this I suggested running higher oil level than recommended by manufacturer and that seemed to help greatly.

@@UpAllNight91 that makes sense ima do that once she’s rubuilt thanks man

@@150xcw yes 👍 sir

I'm thinking your talking about the gear sensor contacts, they go in the shift drum to make contact with the points on the senser thats on the case

Not before the job when it backed out. But after the job I did, and safety wired it in

I would change the main crank bearings with the crank just to be safe just because it did have shaving in the filter. Just to be safe.

@@UpAllNight91 okay thank you man, keep up the great content, you are like the only person I have seen working on the newer bikes!

@@KaiMiller thanks man. And yes sir I will be keeping them coming . Thanks for watching and also commenting!

@KaiMiller i am about to do the same thing on my 2019 yz 250f…have brass shavings in oil filter as well….did you have any damage to the head and cylinder?

@@reeceblanchard9132 thankfully I didn’t, I didn’t even have to hone the cylinder. But your bike could be different but hopefully you don’t have any damage

Unfortunately I dont. I'm sure one will come soon enough but I do have a YZ450f engine rebuild video that can walk you though getting the motor apart and back together. And then I have a YZ250 video where I repair the transmission. If you put the two together I'm sure it will get you through the job.... I will grab the links for ya....

YZ450f rebuild video ... kzfaq.info/get/bejne/l6yGY92Ft9Oxd5c.html

YZ250 trans two videos here... kzfaq.info?search_query=1%3A11+yz250+day+2 ... and this one too..... kzfaq.info/get/bejne/eMxjYLuW2ZbdZ3U.html

Should be very similar.

Hello. I wouldnt have put any gasket sealer on the head gasket itself. That stuff usually causes a leak. Since its getting in the oil but no oil in rad, its likely a water pump seal or head gasket allowing coolant to seep into the oil.

@@UpAllNight91 I had changed both, I just took it back down to inspect, retorque and everything looks good. Ill probably have to check the water pump seal. The bike does run really good and easy starting

@@Jason-zr6il right on. Could totally be water pump seal

Hello. If you are talking about the contacts for the gear sensor, I usually install them in the drum after the cases are back together and then put the gear sensor in on top of it.

@@UpAllNight91 ohk that makes sence just doing my first full rebuild on my bike been this vid has helped heaps cheers mate

@@logan20v Yes sir! Best of luck!

The engine is locked up/seized.

Hello. if its in good shape its worth $800 just for its parts. For a fixer it depends. Sometimes what sounds like just a new piston and crank can work its way up to a cylinder head, valves, and cases included. Sometimes it can get expensive fast, so you have to be ready for that. You will also probably have to get the carb straightened since its probably been sitting around. It can be a project but if you have the time and willing to put the money into it, its achievable.

Usually the bluing on the crank was from them heating it during the assembly. As long as the rod and rod bearing feel good. Shes good.

@@UpAllNight91 awesome had me worried. Thanks for your time 👍

@@jamesclark4 yes sir! 👍

Hello. Yes I do. you can reach me at upallnight91@hotmail.com for my phone number.

I went back through my memory and didnt remember timing it in so I got back into the motor. If you didnt line up them dots on the two gears I would open it back up and do it. It only takes a half hour if you stay on it.

@@UpAllNight91 what would happen if you left it untimed

@@spongebobsi2iispongebobsi298 It will vibrate a lot more than normal.

Hello. The specs are... Valve clearance (cold) Intake 0.13-0.20 mm (0.0051-0.0079 in) Exhaust 0.18-0.25 mm (0.0071-0.0098 in) Here is a link to where you can also download the manual from Yamaha for free library.ymcapps.net/library/om/app/index.html?baseCode=6150&langId=02

@@UpAllNight91 thanks for the manual

Hello. I order them online. Here is a link to a video I put together on ordering OEM and after market parts, hope that helps. kzfaq.info/get/bejne/qdJ_maqAsrfXmKc.html

@UpAllNight91 awesome just got a full carb rebuild kit and a mid body seal kit. We will see what the engine needs when i get my fly wheel puller

​@@jamesclark4right on!

For a track bike, a crankshaft should be replaced every 200 hours.

THANKS

@@lisandrodebortoli5158 Yes sir!

Been a while since i made the video but if the crank was bad I probably left all that together because it would receive a new crank and piston on assembly

@@UpAllNight91 ohh ok

LoL. 😊

@@UpAllNight91 standing over the top like the video i got it straight away , I had been trying side on

@@Dalebrah69 lol. Nice!👌

2021

As soon as I have one to rebuild I surely will. Anytime anything good comes my way I try to record it

Oh oh ok perfect btw is there any motors that are welded together so you can’t rebuild them or does every motor come apart

All motors that are of quality are designed to also aid the mechanic in repairs

@@UpAllNight91 oh ok is there any motors u have to grind into like grind into the cases or are they all bolted

@@sethmac951 only thing I know of thats welded is toyota trucks rear differentials lol

I maybe would have if it was mine but the owner wanted this repaired at the cheapest possible. That being said he's probably put 100 hours on it since then and alls been well

Oh sorry. U are correct. I will correct that when I get bacl home later. Thanks for letting me know

They can vibrate out if not torque down enough. I didn't do the oil change that caused this to happen, it was the owner. His previous bike he stripped the oil drain bolt and was scared to strip this one so he under tightened it. As for me I don't use a torque wrench on drain bolts. I go by feel but I been doing this my whole life and have good mechanical intuition. I don't strip them and also don't have them come loose either.

On a typical rebuild yes, bearings and chain. However this chain felt good as new (no kinks or stretch) and so did the crank bearings. Bike hardly had 50 hours on it. The owner just wanted the bare minimum to get her good again. I'm pretty confident as long as the drain plug stays put she will be good for many hours, as shes already put on another 20 and so far so good

Fantastic video. Great detail. BUT the rule of thumb I was always taught never ever go that deep and not replace the big end bearings,my only gripe man lots of work to not replace the cheapest but most important bearings . And over looking the the timing dots on the harmonic balancer woooooo just lucky not the timing side . Other than that👍

Thanks! I will do my best. Appreciate it!

Hello I don't have Instagram but you can email me at upallnight91@hotmail.com