Honda CRF450R Top End Rebuild | Part 2

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Honda CRF450R Engine Rebuild: rmatvmc.link/crf450r-top-end-...
This is part two in our series where we go through a complete engine teardown and rebuild on this 2005 Honda CRF450R. The second part of this process starts with the reassembly of the top end, which is detailed here in this video. The steps shown here will be very similar for 2002-2008 Honda CRF450's. Stay tuned for this series to see the complete engine disassembly and rebuild process.
Watch Next:
Honda CRF450R Top End Engine Rebuild | Part 1
• Honda CRF450R Top End ...
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Опубликовано:

20 янв 2020

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Комментарии : 109

@thefreeradicalart7273 2 года назад

Top shelf guys. I bought one of these bikes a while back. It was garage stored for years and in amazing shape. I have been slowly rebuilding it this past winter, suspension re and re and everything thoroughly checked and replaced as needed. Your videos are an absolute goldmine.

@blakejansen642 4 года назад

These 2 videos were so helpful, my top end is brand new now and saved me soooo much money compared to taking it to the shop. Thank you guys!

@rmatvmc 4 года назад

That's what we like to hear! Glad it helped you out!

@robertwoods2505 4 года назад

I knew about timing them with the flywheel marks but aligning the cam marks without the bolts and then turning the cam to align the bolt holes was new to me. Very good idea. Great job RM!

@Wide000 4 года назад

Unfortunately, my CRF is already rebuilt and working well. A few tips shown here would have help... Perfect tutorial. Great job!

@ExtremeArtOfficial 4 года назад

I'm repairing my motorcycle Honda CRF 450 R. Thank you for the video .

@dirtbikedave 4 года назад

This makes me want to sell my 4-stroke and work on my 2-stroke.

@craigbielsky115 3 года назад

I JUST WANNA GO FAST ........I DONT LIKE ALL THEM SHIMS AN VERNEER CALIPERS AN DIGITAL MICROMETERS .... AND ALL......CAM TENSIONERS ....GET THE COOL AUTO ADJ ONE ....AND 3 ANGLE VALVE JOBBERS AND SUCH I RECKON MMMMHHHM

@bajarockstar5511 2 года назад

Yo make everything look easy, love rocky mountain , cheer from Baja , learning from you guys to be able to fix friends bikes 🍻🏁

@robertwoods2505 4 года назад

Great job Charles.

@welderup6669 10 месяцев назад

EXCELLENT VIDEO THANKZZZ FOR SHARING!!!

@fabriciobarcelo1697 2 года назад

Excelente vídeo. Saludos desde Argentina

@lyricism1595 2 года назад

Very informative. Thanks

@patrickjohansson3076 Год назад

Awesome love this video , ty Awesome work , best regards from sweden

@chaseharman6376 4 года назад

"Now putting on the valve cover you want to make sure the surfaces are nice and clean and we went ahead and put a new gasket on it, as well".... Piece of fuzzy dust: "Au revoir, suckers!!"

@copisetic1104 4 года назад

I just glad I own a two stroke.

@F80__Los 3 года назад

25:17 god those head cover bolts are a pain to line up

@boazgerhart2315 9 месяцев назад

Facts bro just got done mine and was like this should be the easiest

@lmtada 4 года назад

If you can replace this, then you can apply information to v8. These crf, yzf KTM literally small formula one single engines.

@adamclarke5272 4 года назад

Does this make anyone else want to go buy some contact cleaner?

@dirtbikedave 4 года назад

This makes me want to sell my 4-stroke and work on my 2-stroke.

@ERESMAMABICHO 3 года назад

😂😂 yeah im debating on buying it but I don’t think I need it

@johnnybridges5660 2 года назад

Yeah and some maroon scotch brite... 🤣

@alanbricking 6 месяцев назад

I'm such a slob

@shanesiphonebitch5942 4 года назад

When you line up your time and marks and you put your chain tensioner in it moves the cam gear a little bit is that OK ? or do I got to compensate for that Movement

@jcaashby3 3 года назад

TIP - Put the keepers in the retainer first then using spring compressor. As your compressing put your finger over the retainer to hold the keepers in place!!

@tomatoknuckles 4 года назад

Actually ridiculous how much more complicated a 4 stroke is compared to a 2 stroke.

@FabianRomano1 2 года назад

yeap, I was just considering a 4-stroke 450 since I sold my YZ 250 a few years back. These 2 videos put me off, I'm getting a 250 two stroke again, maybe a 500 if I can afford it. (But the video was helpful and great to watch, learned a lot about 4 strokes)

@onenessseeker5683 2 года назад

stop being demented

@brandongeorge6388 3 года назад

Hi does the big bore kit require a piston change as often? And what is the safe work hours to change stock piston

@dorivaldoramos 4 года назад

Was the 2nd spring that he removed, mounted upside down??

@jackbritt2424 3 года назад

I love how I take my bikes to the shop for an oil change then I watch this video lol.

@kimberlydillin2407 2 года назад

great video, Wouldn't it be a good idea to change the timing chain? Or is it not necessary?

@bobjones6468 Год назад

If you get the valve seats machined do you need different valves. Or do they add material then take away back to OEM size?

@shorelinefilms9661 4 года назад

It’s honestly not that hard to do top ends on 4 strokes.

@bilboswaggens2975 4 года назад

The videos being so great helps too

@calebmartin2457 4 года назад

Exactly

@calebmartin2457 4 года назад

ShorelineFilms it’s really just the bottom ends that are a pain

@AnDrEw122100 4 года назад

It’s not at all , I’ll tell you it makes your life a ton easier if you just pull the engine an do it on a clean organized work bench !

@jcaashby3 3 года назад

Hard if your not mechanically inclined or have the tools. Lucky for me I have both :)

@jasonconerly6203 3 года назад

You didn't adjust the compression release on exhaust Valve

@chavycash2518 4 года назад

Is this almost the same on a 2006 crf230f?

@kallemstevens2046 4 года назад

What dose it mean when you rev it on a cbr450r and it is missing

@jakeclare6457 2 года назад

Make sure u use the vernia calapers on the end not in the middle off the jaws or you’ll have an in accurate reading

@trombolio 4 года назад

Do a 2016 Husky engine rebuild.

@JoshKenney1308 4 года назад

Hey guys, im jdoing a trx450r i just picked up for a good price because it leaked oil from the base gasket. just took the top end apart to replace the gasket, seen the top end has very low hours so went to reassemble and i cant get the chain back on the cam gear.TDC and all theres not enough chain for the gear to slide onto cam. It came off fine though. Any suggestions?

@rmatvmc 4 года назад

Is there a chain tensioner still putting pressure on the chain or have you removed the tensioner?

@zoros3108 Год назад

my service manual mentions nothing about timing this timing mark (12:20) kinda makes sense why my compression timing wasnt right when i did everything else the way it instructs, it does mention timing from the right sight of the crank case while the engine is in tdc, but my cam chain must be out of sync with the marking? or if the right side is in line will the left side be too pls help xDD. Second edit maybe i put my cam gear in 180 degrees backwards is that possible?

@rmatvmc Год назад

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-mMWLygPpvNQ.html We covered the marks better in part one, so check that out. You can also use a long screwdriver down the spark plug hole to verify TDC, since it can be kind of hard to see when the timing marks are perfectly lined up. The cam sprocket will line up the same either way, just make sure the marks are facing out like in the video. -Charles

@gaminhbenobg8365 Год назад

How I know what valve goes where ?

@bilboswaggens2975 4 года назад

You made these videos like a month before I'm buying a 2005 450 that needs a top end. The timing is perfect because these videos are great. The guy I'm buying my bike from says that is lacks compression. Is there anything I should expect to have to fix besides the top end? Even if I spend 1000 on the bike I'll be within the budget for the price I got the bike for

@rmatvmc 4 года назад

Do the compression test, check your valves, and you might as well to a cam chain since they're cheap and easy to change out. I'm sure the bike has a lot of hours on it so make sure to really check the cylinder wall for damage. New spark plug.

@juniorcardoso213 3 года назад

Top de mais

@donaldtheduck6073 4 года назад

Not sure if anyone here can help but i got a cylinder works 100mm over bore kit for a 2008 crf450r and the gaskets i got are identical to the stock gaskets the base i would understand although it doesn't want to slip over the outside of the new cylinder without bending and rolling the edges but the top literally hangs inside of the cylinder and would get hit by the piston if i were to install it. I think they sent me a stock kit instead of an overbored version. Anybody know what size gasket it would need to be? I assume 101 or 102 mm if the cylinder bore is 100.

@1Missile_boss_97 3 года назад

Hey man I want to know how much for Claire's how much water flavors

@luvjesus4evr85 4 года назад

Plz explain more on the valve shims the timing.

@ERESMAMABICHO 3 года назад

Valve shims are the hardest part about rebuilding the top end because you have to do simple math but it’s not rocket science , there’s a lot of videos on RU-vid about timing and valve shims

@timetter7062 4 года назад

the is 05 going to rip!!!

@ashtonchenoweth2493 2 года назад

Where can I find the cam gear holding tool can’t find it on your website?

@rmatvmc 2 года назад

www.rockymountainatvmc.com/parts/pro-honda-cam-sprocket-holder-p Sorry I missed your comment, but here you go! -Charles

@Honda1k 4 года назад

What's the best break in oil do you recommend for a fresh rebuild

@gamer2350 4 года назад

The same oil u always use

@Musthafa-ev6tj Год назад

My engine boils a lot and drains the water from the radiator very quickly. How can I solve my problem? Crf450r 2010?

@canoncel9464 4 года назад

24:59 there is fuzz on the gasket lol

@noeldruzetic538 4 года назад

Price for whole top end???

@311hitwall 4 года назад

How many times has this engine been rebuilt since 2005 and has any work been done on it like machining, etc?

@calebmartin2457 4 года назад

311hitwall I bet this is its first rebuild tbh

@stephenneck8440 3 года назад

It was no virgin. Had a hot rods rod when disassembled

@pinturitabarrientos1061 2 года назад

How many pounds of torque does my crf 450r 2013 motorcycle have if you can help me xfa

@rmatvmc 2 года назад

The 2013 Honda CRF450R engine makes around 35 ft-lbs of toque.

@northernmadness4022 2 года назад

Where did you get your cam gear holding tool

@rmatvmc 2 года назад

Unfortunately, that Motion Pro tool has been discontinued but there is one from Pro Honda that should do the trick. Just make sure to enter your bike's year, make and model to ensure this will work. Pro Honda Cam Sprocket Holder- www.rockymountainatvmc.com/parts/pro-honda-cam-sprocket-holder-p

@alaskadaveo 2 года назад

i missed how to know what shims ? , put in cam check to see if s how tight we got ? no explainig feeler gauges or how to figure out shims

@rmatvmc 2 года назад

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-6l3xtLtddrQ.html We did that in a separate video. Click the link! Thanks - Charles

@311hitwall 4 года назад

I followed the service manual instructions to put oil on bolt threads for a linkage bolt and when tightened it to torque spec the dang thing stripped the threads off.

@tysleight 4 года назад

Talk to the guy who did the job before you. Bet he said if tight is tight then a little more will be, more better.

@311hitwall 4 года назад

@@tysleight It was from the factory - nobody had touched it before. I just put a little oil on the threads and followed the Honda service manual torque specs.

@tysleight 4 года назад

@@311hitwall well that super sucks! Maybe it was built on the Friday before a 3 day weekend??? Is the 311 stand for the band or The police code of indecent exposure?

@blakejansen642 4 года назад

I bet your torque wrench’s arnt exactly right, I know my torque wrench’s are cheap and over tighten a lot of my bolts. I broke a left side cover bolt and it wasn’t even at the required torque yet.

@311hitwall 4 года назад

@@blakejansen642 Could be but I used the same wrench after I got a new bolt - without the oil of course. Maybe the oil makes it easier to stretch the bolt and if the wrench is off a few pounds it doesn't end well.

@nestyjimenex7903 4 года назад

what happend whith adjustment of the decompresion rocker?¡¡¡¡¡¡¡¡

@luvjesus4evr85 4 года назад

Tell me what I need to no about thatn0lease. Doing this motor right now. And he went to quick over timing and shims. Any advice

@76tigga 3 года назад

top end rebuild on YZ450F seems a lot easier compared to the CR450R

@rayhanresmi6773 3 года назад

wouldnt you need new valves after machining the head?

@rmatvmc 3 года назад

It all depends on the condition of the valves, if they are cupped, pitted, bent or have any other wear or damage, then yes. You would want to have the new valves before machining the head because they need to match up to the seats when you're done. If the valves are like new, then all I'd worry about is the contact pattern. We just lightly used the cutters on our seats to clean them up and make sure the contact pattern was correct. If there was serious damage to the seats you would probably need to replace the valves as well. -Charles

@rayhanresmi6773 3 года назад

@@rmatvmc thanks man

@renatotuga21 4 года назад

What kind of scour pad do you use?

@rmatvmc 4 года назад

We used the red Scotch-Brite pads to clean the valves and gasket surface.

@renatotuga21 4 года назад

@@rmatvmc thanks a lot

@danshort3147 2 года назад

You said drink everytime he said contact cleaner,man I’m fubar.

@goodboyringo9716 4 года назад

Other than the head with valves rebuilding 4 stroke is not hard and about the same as 2 stroke.

@969Garage 4 года назад

Looks like a f****** nightmare . Might just get another 2 stroke

@simonekjachnik6634 3 года назад

yeah i will buy a 2stroke after i put my 450 back together..

@yonmoore 2 года назад

That's EXACTLY what I'm doing lol

@onenessseeker5683 2 года назад

Not much harder than working on a 2 stroke. Good

@Cplink420 3 года назад

Fun fact: If you know how to replace 4 stroke top end you can do a 2 stroke but if you only know 2 stroke you can't do 4 stroke

@denaself4547 3 месяца назад

Where's part 3?

@rmatvmc 3 месяца назад

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-r3XryeyZr3k.htmlsi=0dKAUWL-7SG5_r-w

@ducaduke 2 года назад

Using punch to hold the cylinder. Can’t you just put it on a wood bench? If you have one of thoses valve punch

@rmatvmc 2 года назад

You can certainly put the engine on a bench.

@ducaduke 2 года назад

@@rmatvmc damn you guys are on it! 2yr old video and a reply in less than 2mins wow 🤩

@ducaduke 2 года назад

@@rmatvmc thank you for all you do! You guys deserve much more attention. Sucks that people nowadays are afraid of motorcycles and bunch of pussies lol. Thanks again!

@kelseymoe2259 3 года назад

Hey bud I have a video on my page of my trx starter problem if you could check out and let me know what you think the problem is be gladly appreciated..