$500 Yamaha YZ450 Dirt Bike Engine Reassembly | Top End Rebuild #2

[@radioace318la]

Dude!! I just found this same bike on Facebook Marketplace for 500 bucks. The thing is, I'm pretty good at this sort of stuff. He took this bike on a trade-in with the rod knocking like crazy. He tears down the engine, yeah, split the case and for some reason (lack of funds or lost interest) threw everything into two big ass boxes, shook up said boxes for good measure. Took pics of bike enginless from all angles, good rubber, chain looks good, suspension looks good, etc. (didn't include pictures of the two boxes of lose cases, bolts, nuts, (even took the head apart for some reason) a cam here a timing chain there. literally, a basket case! All I know for sure is the bottom end needs work. I'm not sure I want to dive into this gene pool. Thanks for sharing your hard work and expense. Cheers from Louisiana.

[@MotoBuilds]

I like what you're doing bud. But do some studying on the specifics of building these race motors. For example, unless you're just trying to get the most power for one race before you have to shim again, you don't want to be on the tight end of spec when shimming valves, you want to be at the top of spec, also if you are running a 1.50 shim, whoever buys that bike is fucked. The valves have beat themselves deep into the seats and it's time for a valve job. Also when you are checking clearance, the lobes need to be pointed away from one another at top dead center, not vertically, and the cam caps need to be torqued to proper spec before checking clearances at all or you could get a false reading. Source: I've built hundreds of these engines over the last decade.

[@tylerloertscher7322]

Same page brotha....thank you for saying something .....I couldnt finish the vid... I thought it was a joke of some sort...then I kept watching ...got the feeling in my stomach after you kick a bike for the forth time and still no light ....ya ...hit me like that ...lol

[@scarab1er51]

That dude is a freaking joke, only build 2 engine and i know more 🤣

[@kanuckkorner8477]

Nice one Mason , you scare the crap out of me though using power tools on an engine stick with the hand tools for that lad better safe than snap bolts or strip threads .can't wait to see it start

[@Bri-tg6xr]

Top Tip- Keep a hobby brush or similar brush around for lubing up your engine as you assemble the parts, just dip the brush and paint that oil on instead of fiddling with the cap and getting all oily. Keep up the great work!

[@lovetofishneosheo1829]

Hair is the most dangerous thing that you can possibly get anywhere the inside of any engine

[@Psycrow11]

Its fun watching you learn stuff for the first time. Shrug off those negative comments... Are you making mistakes...probably but your learning...ive seen you grow over the last year and good on you for tackling all this and letting us come along!

[@drewjames8594]

Well said man! A lot of "race engine master mechanics" in here armchair quarterbacking & ragging on the kid but Im happy he's getting his hands dirty and out of his comfort zone. More than you can say for 99% of kids coming up now days. The only way to learn is to make mistakes.

[@fish8196]

haha see this thing blow up in the next video.... I'm sure it will run

[@lbdrummer3]

Frikin awesome man. And you think it might blow up, yeah right. Dude this thing is gonna scream!

[@GoldGuyRides]

I can't wait to ride it

[@lbdrummer3]

@@GoldGuyRides We all expect a motovlog when you do!

[@johnfigueroa7822]

Great job...I'm looking to buy a 2008 yz450 that has a big hole on the side of the engine and was very worried I'd be in over my head and after watching this video I was rite!!!....(still going to get the bike and see how bad I can screw thing up)....see ya

[@hellraiserrec19]

How did it go?

[@pollywaffle1458]

Fricken awesome yz 450s, 400 are awesome🤙🏻🤙🏻🤙🏻 your vids are what makes me happy👍🏻👍🏻👍🏻

[@M00SEM0T0]

giving me confidence to put my engine back together, thanks, keep up the good work.

[@kylemartz2251]

Yay for the gold letters and another good video. Thanks.

[@blackbartbartholomew7122]

You’re doing a great job, keep it up. Great channel.

[@daveswarbrick5576]

Are you sure about the torque? i saw Nm not Ftlbs!!! big,big difference, that could be why you snapped the clutch bolt! they're something like 7Nm and struggled with the head torque!

[@JensEskildsen]

He put in way more than 7lbs anyway, he really put a bit of effert into tightening them, same with the caps for the camshafts and the bolt/nuts on the left side on the cylinder.

[@daveswarbrick5576]

@@JensEskildsen yeah i think he's getting confused over Nm and Lbs, think that's an old wrench, looks like it only has ftlbs,most modern ones have both, but some don't go low enough for clutch bolts, i hope he reads these as i'd like him to back off the cam caps.

[@zach5994]

@@daveswarbrick5576 7nm is 5ft pounds so not a big difference

[@jesus-lb6uu]

he might just be converting directly people with limited tools are just forced to not be lazy that's probably why he wants a digital and not just a new one

[@ronniecurnutt4309]

Right on Gold

[@graveydavey0074]

Always thought you could bench test valve clearances. Your the first to show it.👍👍👍 Thanks

[@luketarbox7722]

Hopefully it doesn’t blow up again. I’m super excited to see it on the trails

[@jeffcook7964]

Fingers crossed ,that's the only prob with the newer style engine sweet F.A for tolerances and big bucks on failure ,bring back the big 2 strokes blow em up couple of hundred to fix at home.

[@MotoMango]

Killing it, Mason! Also that intro with you dancing had me dying haha 😂 Stoked to see the engine back on the bike.

[@GoldGuyRides]

Ahaaa thanks man you're awesome

[@ShockWaveGamings234fg321f]

Love the vids. Keep it up

[@thegameguy5886]

You deserve more subs and likes

[@LdpMusic2]

I really like this kind of videos

[@JimjazzMoto]

Nice tutorial😁😁😁

[@chrisgreenwood271]

That's in the way, out with the grinder out baby.

[@sixpacksandsrts9122]

Those buckets are specific too. They gave s color code under them. Do not mix them up

[@jonmotes5406]

Great job buddy!

[@WICKEDGIXXERL]

Make sure the assembly Lube you used. Does not have friction modifier in it or it will ruin your clutch. That's why they suggest using oil

[@kpsmith4241]

awesome video

[@mxbeanz1206]

gold guy your so under rated i hope you make it big. im also from pa i got tons of bikes and my buddy has a private mx track

[@GoldGuyRides]

Oooh private mx track, I'd love to see that place sometime

[@ichwanubaidillah9163]

Good job

[@djoxy994]

Can't wait to start that beast! Great vid bro 👍

[@Mean-bj8wp]

That's an automatic cam chain tensioner when you wind it in all you have to do is tap it and it pops and the spring pushes it back out. So wind in and fit thwn tap and it pops to the cam chain guide to the correct tension.

[@quadvloggs6876]

Did you pay attention to spacing your rings out so the gaps aren't lined up by accident

[@krrmoto5048]

I really enjoy these videos!

[@quickshiftoutdoors]

Please tell me you put the other cam chain slider in off camera. 🤦‍♂️🤦‍♂️🤦‍♂️🤦‍♂️🤦‍♂️

[@TheDavey333]

That looked like hard work, at least it’s together now. Hope the rest of the rebuild goes smoothly 👍

[@Xtain12]

Not gonna lie I was stressing out when you were angle torquing those bolts... Haha nice job!

[@thesinwagin]

Me too, but for the torque wrench. Should have been done with a bar

[@acerig4675]

Did you index your piston rings?

[@ryanngalea]

Holy shit I nearly died when he did the camshaft caps up with a DEWALT... please don't do this people

[@ryanngalea]

I couldn't watch past 4:47, if you are going to show 43 thousand people how to rebuild an engine I think it's your duty to use the correct methods. gl

[@HI-mk7gw]

I think He overtightened the caps also , so that is toast

[@tylerloertscher7322]

I about died....poor motor!!!..lol

[@HI-mk7gw]

@@tylerloertscher7322 but most of the time the trashy builds will work , my experience

[@tylerloertscher7322]

@@HI-mk7gw I agree with you ...but there is alot of people that watch you tube and come here for information that dont know the difference and look to creators for guidance...and if someone followed this ...there maybe decent motor would be crap in no time ....

[@braydoncharles2858]

13:06 did the exact same thing when replacing mine😂

[@danl3154]

Better late then never!! 👍👍She going to purr. 🐱 good work

[@jimmylikesguys]

9:30 what's that part called? I have the exact one I got from a old storage unit. I needa get rid of it. But dont know what's it called .

[@hardikeywan9930]

clutch boss, clutch housing, clutch assy

[@ThomasBrock74]

Maybe I'm wrong but isn't there supposed to be 2 chain guides coming up through the head?I only see one coming out of your head.So did you forget to put one in or does a Yamaha only have 1 pretty?Sure, it's supposed to have to though.So he might wanna look into that

[@paoutooPREMIUM]

You should eventually do like a staple Gold Guy build. Make it badass and put your logo on it make parts gold or gold and black or something I think that’d be badass

[@ThomasBrock74]

Dude, you have to check the valve clearance.You just can't bolt that up and let it go.You gotta make sure you get the right chins under the shim buckets

[@celticguy6405]

Good luck to you, I'm excited to see that bike rip! I'm currently rebuilding my Honda XR250R engine and will hopefully have that sum bitch running next week!

[@CoastlineMx]

All I can say is you have a lot of learning to do as far as working on dirt bikes. Very first thing you need to do is get quality tools to work with. Your torque wrench is shit and need a good one. All in all your doing ok .

[@jontest5718]

I’m new to dirt bikes, pulled the engine on mine. Will a fully assembled engine fit back into the frame? I pulled mine with the top end off

[@ZygmuntKiliszewski]

For a young boy, in my opinion, he did the renovation quite well. Greetings :).

[@braydenbelzile405]

I had to cut the rod exactly how you did haha it was not fun but I did it on a yz 125

[@2strokefather863]

Can u take the head off without removing the cams? Say if I just need to change my crank case

[@GoldGuyRides]

Nope, the cam chain holds the head/cams to the crankshaft.

[@markusb8438]

Don't use a big torque wrench for small bolts into aluminium, just do it by feel with a small ratchet

[@franciscojavierespejomoliz1208]

Hello, could you say where do you find the manuals for the engine's rebuildings?

[@GoldGuyRides]

A simple Google search of your year, make and model with the words owners manual next to it. For example I typed in 2008 "Yamaha YZ450F Owners Manual"

[@franciscojavierespejomoliz1208]

@@GoldGuyRides Thanks men. Saludos from Spain, I wish you the best!!!!

[@hardendurobosnia17]

When can we expect to see the new video? I can't wait

[@ThomasBrock74]

Dude, you need to take a scotch bright pad on a drill to the steel plates on both sides.Scotch bright paddle clean him right up and take the glazing right off without removing too much metal in minimum effort on your part.

[@braydoncharles2858]

Would definitely recommend filing or replacing that clutch basket had to replace mine about 3 months ago as it would just keep stalling when it goes in gear good video though

[@TEE_TIME_GOLF]

What guide were you looking at on your phone?

[@CarlosPerez-ff3bj]

14:20 should of covered the crank from debris also your torque wrench is wrong, it's too old, use a rag to put on the surface when using a screw driver to remove a seal, make sure you have the right assembly line, some can mess up your clutch, that's why oil is recommended

[@BasicPoke]

Thanks for another video Mason. Keep up the good work. The instructions said to put grease on the valve train parts? Seems like just a little assembly line would be good.

[@scr0ter]

Stating the obvious but time for new torque wrenches. I got a 1/4 drive one for the smaller stuff and found it much better especially when it comes to over tightening. .

[@quadvloggs6876]

Scotch brite pads would of cleaned those steel plates but sand paper works to

[@carlosperaza2893]

How many pounds of torque are given to long screws?

[@ELViSLOK]

Its gone b ✔ done soon🙏🏼 n looks good

[@carlosperaza2893]

How many pounds are given to screws holding the head and cylinder?

[@Burntrice747]

“How to warp cam caps”

[@arminlucasbombardier9721]

lol and how to drop head and fuck up new valves and wreck piston mating surface!

[@shadowboy449]

Front where You save all this diagrams and specs dates? I mean you buy from somwhere?

[@donsinor1713]

There are always going to be critic’s GG. Keep doing you. Subscribed till the end of the Channel! Love watching you learn.

[@carsongwin1816]

What service Manuel are you using

[@jaybray4901]

You used a power drill to tighten the cam cap bolts?? You need to do some research.

[@gorgon9786]

Powerdrill is fine...as long as you set the torque in 1. position..

[@jaybray4901]

@@gorgon9786 LOL ya ok sure

[@Budivedder]

Mantap kerja bagus bro

[@phill-w]

Not sure if I seen it in the clip "which great effort btw" but! Did you you check for the correct valve clearances? 😁👌

[@jeffcook7964]

At the stage where nerves start kicking in when close to start up then you find a circlip that your pretty sure is important,lol Jokes aside whats the cost so far I just got my 08 crf450 redone gearbox to top end $3100 .

[@m.m.8756]

sei un grande!!!!

[@billystergiopoulos8025]

Man what you doing using impact driver on those caps might as well use a jack hammer champ

[@КИРЮХА057]

hello from Russia. please show the video how to install the motorcycle watch sensor on vr 450f

[@martinkupka3575]

My recommendation after having had similar problems: Use smaller torque wrench for smaller screws. It can be adjusted more exact at range of lower torques and also reacts more sensible. Love your videos and how you get better with each built.

[@joelsmallwood8745]

I did the exact same thing with a clutch spring bolt. Torqued it down and it broke right off

[@blakebolte1775]

Legos Trains & More thats what I was hearing when I went to replace my clutch, people were saying at only 8ft/lbs they were snapping bolts so a lot of guys just said tighten them by hand. Its working for me for now

[@joelsmallwood8745]

Blake Bolte luckily I had extra bolts on hand so I managed to torque them all them down without issues

[@blakebolte1775]

Legos Trains & More thats good to hear, i didnt have any spares and got paranoid i would snap one lol

[@juanvaladez9456]

Where you located can you work on mine have cash

[@weisstalbot3192]

Did anyone else not notice he never put the second cam chain slider in

[@Xiferr]

if u dont have a good idea of the yield of bolts by size before snapping dont bother using a torque wrench.

[@jimbob500e]

You should try a BSA next time. You’ll just watch the dollars sift through your fingers. Lol

[@swemx7403]

I was planning to sell my KTM 525sx today and get a 2003 yz450f. But after seeing this video how to adjust the valves I think i'll pass. It's so much easier to adjust the valves on the 525sx. All you have to do is remove the intake and exhaust cover on the top.. And thats it. You to not have to remove the whole freaking top to adjust the valves. Just leave it on there. To see if you're in top dead center you just remove the spark plug, Put a long drinking straw in there and kick the bike with the highest gear until the straw literally ''shoots'' itself in the air. Wiggle the rear wheel a little bit back and fourth to see if the valves are moving. They don't? There! Now you have top dead center. Now you just grab a 10mm wrench to loose all the four nuts and a 0.12mm feeler gauge. All valves are ''and'' should be 0.12mm. It's simple, It's fast and it's alot less parts to look out for. Idk what the f*ck Yamaha was thinking with this engine.

[@jimmysadventures5541]

What happened to 2 videos a week? It felt like ages since the last

[@Kanekiken-fb1qu]

I subscribe bro

[@slime5430]

Your suppose to set valves to loose end of spectrum

[@GoldGuyRides]

That's exactly what I did

[@slime5430]

@@GoldGuyRides you set to .20 instead of .25

[@gering46]

Hey man not to knock anything you’re doing but something I noticed that could make a big difference with your torquing. You’re using your torque wrench like a ratchet once you torque something down with it you do not loosen it back up using it just something I learned from working in a dealership

[@spirospipis1299]

Hi from greece..

[@everydaymechanic4657]

Anytime you torque something it should be a smooth linear motion not jerky

[@zach5994]

God bless 2 strokes

[@sixpacksandsrts9122]

Het gold guy. Check out your messenger. I sent you s link to a cool mid 70s Harley enduro. In your area. Cheap

[@gus9272]

Assembly lube, grease and motor oil mixed, great salad!!

[@itz_reck2969]

You never checked the valve clearance

[@kawapool4704]

....Copper washer.......!!!!!🤣🤣🤣

[@beev2123]

are you loosening bolts with your torque wrench?? no wonder its fucked. love your vids!!

[@robociock]

I like your enthusiasm on restoring but deamn watching this videos i always feel bad about something "unconventional" u make sooner or later

[@duongnguyendn3129]

Không biết trái bao nhiêu nhỉ@

[@ichwanubaidillah9163]

Assalamualaikum

[@bayantoanto4802]

Hi i'm a mecanik, are you a mecanik??

[@GjpRion]

I like you.

[@GoldGuyRides]

I like you too

[@danielmeyer4515]

U way over tightened everything ur confused with nm and ftlbs

[@czortorys4401]

Longest engine reassembly you say. Please, 6 months and still going. Honda cb750.

[@ธงชัยฯ-ต4ร]

ลูก​ใหญ่​มาก​

[@idoid4905]

Bangun di ajar keneh uy