What's Wrong With This CRF450 Motor?
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- Опубликовано: 22 сен 2017
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Let's figure out what's going on with the Honda CRF450 motor by tearing it completely down.
-Cameron
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Авто/Мото
A compliment for not selling any useless crap in this video.
Please don't stop making these awesome videos, I love watching them!!
Couldn't do it without you guys watching and leaving awesome comments! Thanks dude!
it's like porn :D
can't believe I'm getting all this knowledge for free. this is incredible
I could do that no problem. Putting it back together - that’s another story.
Rebuilt mine a couple years back and this video was a great refresher course. I went with stainless steel valves and never looked back.
So much knowledge and confidence to just take apart every component of the engine without hesitation.
All comes with experience and just a love for wrenching.
This is seriously going to help me out a lot! I just got a 2003 Honda CRF450r with a lot of work that needs to be done and a big part of that is it getting a valve adjustment and it makes sense now because I checked the air box and it was absolutely filthy and seriously in need of a replacement or cleaning
I’ve watched a couple of your vids now, fair to say I’m really impressed with your knowledge and attention to detail. Great work mate love the vids! 👍
Your videos are therapeutic.
Thank You Jeff!
These videos are great, and you actually learn from them👍🏼
Dude thanks for watching!
Nicely done Cam, smooth as an eel swimming in olive oil, loved the music score.
Cameron you got mad skills!! Kids don't try this at home unless you have a very skilled mechanic supervising..I'm serious the difficulty factor on this COMPLETE tear down and REASSEMBLE is a solid 9 out of 10....
Thats alot going on. Starting to love the 2 stroke again.
Not as bad as you think once you learn the 4 stroke it’s extremely easy to work on I can have my 250 down to nothing in 30 minutes
Wow, Cameron, you do a great job videoing AND diagnosing. Kudos!
Congratulations, my friend, for the mechanics videos.
Pretty peaceful videos my dude. Keep'em coming!
Man i appreciate so much your patience and effort to do this profissional grade kind of videos!
Well I'm truly thankful for you guys watching the videos and giving your support!
Another great video with very nice editing and angles!
Thank you for checking out the video!
Good methods of disassembly combined with good video: well done Cameron!
Thanks for watching!
Your videos are so beautiful man haha.. You do an amazing job!!! Have you ever worked for a racing team?
I cant believe your self taught! That video was very helpfull. Keep up your awesomeness!
Glad you enjoyed the video Jesse! I've had my fair share of learning experiences along the way haha.
Awesome video! I like all the info at the ending too!
Perfect rebuilt vlog
Great vid cinematography quality. Thanks for time and effor.
Mad skills. Well done young man.
professional equipment and workmanship
awesome video! love watching them, and great camera patience thats amazing, very slick.
Thanks buddy! I do appreciate that.
Sick mate another build can’t wait 🤘👌
Great video, as always!
Thanks!
Great video always learn stuff from them
I appreciate you watching!
Man that was solid stuff.
Where did you learn all that you know today? Also, I'm in love with your videos, can't wait for those million subscribers you deserve!
Thanks man! I learned mostly through experience and watching others working on bikes. Been taking notes since I was about 12
32229411gustavoadolfo motomoyadolfo edadeshoy
Awesome video!👌
Thanks dude!
Good work 👏
Sweet vid! Had no idea that valves can get like that.
Thanks for watching!
Cameron I like your videos man
Great video man
Thanks for checking it out!
Awesome video I love all the technical shots and explanations. You make it look so easy to work on a 4 stroke. I have a 17 ktm250sxf and will need to check valves soon.
Thank you for checking out the video man! Best of luck.
Only ever done top end stuff on engines never bottom, after watchig this video i think id tackle a bottom end with confidence
Bottom end build aren't too difficult honestly, just take your time and watch plenty of videos.
Hey Cameron can you send a link to where you got your case splitter from thanks 👍🏽
Great Job.greetings from Poland
Thank You! I appreciate you checking out the video.
Cameron Niemela
I thank you for making such great movies
Wondefull video Crak!!
Muy buen video..i love the crf 450 Saludos d honduras...
I need to learn valves and carb work
Nice disassembly!
Awesome Video, And Thank God For "Two Strokes" !!! :-)
Yess! I love two strokes.
Nice camera work
What an amazing video. I can't imagine how long it took you to get all those camera angles, especially with grease all over your gloves.
Hey someone understands how much time it takes to film these haha. Yeah, it adds some time to the tear down but it's all fun. Thanks for watching man!
Excelente y hermoso motor ,igual que el vídeo,muy bueno!!!!
super skills! wow great vid!
I was gonna say the looks of the intake side of the Piston you could tell it was lack of a air filter. Plus those stock valves are made of butter they are the weakest link .
You nailed it, valves were pretty shot
Nice vid. At the end of the day how much did it cost to fix it back to running?
thanks dude
Could we see more full bike breakdowns? Love those vids
Absolutely! I'll have another one coming out next Tuesday:)
Thanks, keep up the good vids
Had a 2008 CRF 450 22hrs later 5th gear started slipping out
stripped to find 5th gear drive dogs rounded off got a file n it was soft on other side too
piece of junk
rebuilt it and went back to a yz250 2009 brand new
still got her and loving it
It's very easy to pull them down but it's a lot harder to put them back together if you don't rebuild a lot of them.
The bore looks scratched right down the bottom of the cylinder which is a pain in the ass because I'd say it's Nikasil coated,to do it properly, the cylinder would need to be rebored & re treated.
It seems to be the technology that even Ford have developed which is the plasma arc weld spraying technology which patent Nissan has adopted,it's similar due to the fact they use no cast or pressed in bore liners as such.
The valves on the motorbike can be possibly reground & retreated with a titanium coating if economical or just straight out replaced.
Shimming is a pain due to the fact the shims are a select fit & it's a matter of getting the right ones.
The first of the Nissan R32 Skyline GT-R's used them as well as some of the Toyota engines.
I know Nissan used them due to the fact the RB26DETT engine was classed as high performance when made but Toyota used them in the Corollas & Camrys.
Wouldn't it be easier for Toyota to use hydraulic lifters in them? Their engines aren't high performance !!!!
I going to subs u because ure video is inspiring me a lot! Thanks..
Brilliant Video
Thanks!
soo awesome. I seriously get so intimidated with stuff like this. Like with car engines im fine. But when it comes to the transmission being inside with the engine its a whole different game.
Dude thanks for watching! There's a ton of moving pieces but once you tear into them a few times it's not too difficult.
The valves wear like that normally due to the seat being a harder material than the valve. My guess would be that the motor over heated. Maybe the cooling system, or a lean fuel to air ratio occurred...
great job
With all that damage to the Cyl. Wall, I would say someone was doing a poor job of servicing their filter.
Holy cow I hope I don't have to do this to mine for a while that's way more complicated then the YZ I did
why the piston skirt was damaged? worn crancshaft main bearing?
Love this
Cameron are there anymore videos of this bike? I seem to can only see 2 🤔
Awesome video. But why not wash/wipe the engine a bit before disassembly?
so if i grab the flywheel to see if there is any crank play up and down and side to side. will this give me an accurate read of the crank is okay? and can be used for the time being? obviously not new..
技术贴，一定要点赞。
Holy hell Cam. I mean FML on any engine issue. Wow is all I can say.
Never seen a crf450 wt such a nice clutch basket
So if that will be a complete rebuild, hoping you will show us the process as you go. Or is that one staying apart as a parts source?
This bike is for parts only. I will be doing a bike build soon however.
Mr Cameron the dirtbike surgeon
I try to be:)
Power mechanic 😎
good job
Thank You!
She'll buff
Dvniemela 😬
is this ze brothers???
Good afternoon from now I apologize if you write something wrong because I do not know English I'm brasilerio, I would like to know what oil, viscosity and ml you put in the inverted suspension of the CR 250?
I bought this suspension soon I put it on xr 200 thanks.
I got a ? I'm finishing up my 07 450r build I had head port and polished 1mm bigger exhaust valves stage 2 cam 13:5:1 wisco new crank what is the best way to break it in
Did that ever get a transmission side oil change, damn, some of those parts looked grungy
To all the boys and gilrs out there, before pulling down the engine, clean it very well before starting!
Any tips for clean bolts? So many get stained
Try soaking them in some old gas for a bit, then use a brass brush on them. You can then always top it off with spraying them with some alum cleaner.
WD40 can fix your stained bolts, and they will stay fresh and not get rusty
I soak all my hardware in degreaser or solvent. That'll strip away all the dirt and grime.
Naanak65 wire brush or wheel, wd40 and some CLR
Brake and parts cleaner them. If you want bling... pop into a truck stop and buy a polish wheel and jewelers rouge. Polish up the boltheads to a chrome finish
I see you have green gaskets, but are they put on by honda itself or are they aftermarket? like put on not by honda. Cuz i have a honda quad, and the guy i bought it from didn't know if it ever had a rebuilt, so if the green gaskets are aftermarket, it probably would have had an inspection inside the engine.
OEM Honda gaskets are usually green.
do the 450 and 250r have titanium DLC coated intake valves?
I know the newer ones have Ti valves, not sure on the older bikes.
hi how did u know about fixing dirtbikes or get in to it did some one teach u or ... great vid as all ways
I started working on bikes when I was 12 so most of it has come through experience. My family is pretty good with cars and that helps too. Thanks man!
Sorry to bother ya,
But I have a crf450r that seizes up a few moments after start. The kicker locks up and I can rock it back and forth to free it up... only for it to start and seize again?
You até Very good in mad skils motocross.
your the best more videos!
Thanks, definitely more on the way!
Cool video. I would say the original owner wasn’t big on maintenance. Engine was filthy inside. With regular oil changes cleanup would be minimal. Explains that piston and cylinder issue too😣
This ain’t no XR
Cameron you're great, please translate to spanish!! Regards from Tucuman - Argentina 🇦🇷
Just by looking at the engine while you take it apart, I'd just do a complete overhaul rebuild, top and bottom
Yeah it's being sold in parts regardless.
hi ,,air filter and oil filter its the same as honda 450?
I just subscribed bro. Damn I miss my CRF450R. Had to sell it. Dang baby’s. I have to work.
Thanks!
Did you ever get back together an running?
Its a pity there is no long stroke piston and con rod available for these engines.
How much time did it take to rebuild that engine?
Holy bolts n gears
Yes indeed!
Hi, I'm looking for CRF 450 2010 on injection ? It is good bike ?
The needle bearing on the clutch had no washer on it unless it was stuck to the pressure plate
This is an excellent video. I really like your style. I do have a couple of questions that I don't know who to ask for answers so I hope you can help. I have a 2019 CRF450L and would like to detune it a bit for adventure riding. I already have a Vortec ignition, a heavier flywheel and a Recluse clutch should arrive tomorrow. Does anyone make a milder cam and is there a gearset available with a higher fifth and sixth gear. I've ridden motorcycles for many years but am completely new to off road riding and I'm 75 years old. Thanks!
Nice handling, soo smooth handling like a touching a baby.