Doing the timing chain can be a pain in the ass the first few times you do it, especially on DOHCs, but it's well worth learning how to do. Besides protecting the top end it can often regain some lost performance from the stretched chain allowing the cam timing to be slightly off. Helps starting too.. Good video
My person opinion but I myself feel it’s easier working on the Dohc bikes such as these Yamahas definitely more moving parts involved in the system so that would be a down side to it ... but such as the crf250r , 2003 xr650r I always felt it took longer and was more tedious to get timed perfect
good video changing the chain. take lots of time to get the timing spot on. this is not a place to rush. valve timing is very important. as you said, if valve timing off, starting will be hard and the bike will run like crap. go slow and do it correctly. cannot wait for your next video professor.
People who are commenting about buying a 2-stroke instead and ‘this is why you buy a two stroke’ . These people ride 200lb vibrators because they are afraid of valves.
Martin Horvath, I agree, valves are a little extra work but if you know what your doing its not that bad. And 2-strokes (in my opinion) aren't very ideal for trail riding. I mean they have the benifits of a powerband but if your riding wide open flying through the trails you are going to blow your bike, all because they didn't want to deal with valves.
Ridingbab2 stroke wide open on trails does not even come close to constituting it blowing up..if motor is tight and maintained you can ride for hours wide open without any moyor problems whatsoever...id even say ur more likely to overheat a bike more by going very slow on yrails by not cooling radiator enough thru the no wind and more likely a problem will arise if u ride to slow on trails...
@@carlmatischok2469, Actually valves are virtually directly contacting cams on overhead cam designed 2 and 4 stroke engines. My biggest concern was the "star bolt" description though. Then again I've worked with several "professional" shop mechanics over the last decade or so, who don't know what a TORX is 🤷🏻♂️ Great video though Romaniac. You may not know what the tools or parts are called, but you've got the skill to fix it. I just had to talk a little shit before the complement 👍🏻
I'm just about to do a timing chain on a 150cc pit bike. Bought it for $100, so I figured it'd be a good platform to learn on before I do any major motor work on my YZ450F. Thanks for the detailed video my friend!
Timing chains last longer than timing belts, a timing belt will usually last about 40,000-100,000 miles before it needs changing on average. A timing chain only needs replacing if there is a problem with it, usually a chain will last the life of the Engine. Dunno what that is in Km's as we use miles in the UK. That's the rule of thumb in cars anyway, don't know lots about bike Engines.
2017 yz450f. i replaced the piston at 100 hours but didn't replace the timing chain, big mistake. bike was running fine at the track (40 hours after new piston) but when i got home and after washing it off i tried to kick start it - that first kick caused the chain to skip a few cogs and my engine became way off on timing. luckily i didn't do any damage to the engine. I replaced the timing chain and it runs and starts like new - really an easy process to change, probably less than 30 minutes - chain is less than 20 bucks at RockyMountainATV (RMC also has a video showing how it is done.
Is there a mileage or hours number on when you should start thinking about changing the chain?..Is that the 1st time its been changed on a 9 yr old bike?..Great vid bud..Your the only one out there supporting 4 strokes!
Michael Steven I replace my cam chain every time I do a top end rebuild. Its only about $30 for a chain and it could save you a lot of money in repairs later on
Its clean for an 08, I was seeing of this would all apply to my wr426. It has the DOHC, and 3 intake valves and all that, and your videos are super informational, thanks for making them, I learned a lot already, and have much more to learn
you will notice that the two dots on the cams will not be exactly aligned - meaning the chain has stretched. also, if you have it off you will notice that the links get pretty sticky/kinky
Can u please tell me your opinion I had some ticking noise on engine 1.changed cam chain 2.changed spring on chain tensioner (its mechanical with spring) Ticking is still there,what it could be ?
Hey vegas dude, that cam cap retainer clip you found in the engine, where did you actually find it, was it in the big end or the rotor side, I dropped mine down there and wondering whats the best way to get at it, if it's in the big end?
it was a the bottom of the crank , it came thru my oil drain out, if you are lucky might stay out the the gear box , maybe put a magnetic bold it will hook up to it ant at least hold it in there
Went to the local Powersports shop with a new cam chain in hand for my 07 YZ250F. Guy working the counter told me I was crazy for just asking for a valve adjustment/shim and a chain replacement and tried to tell me I needed to send the head out to get re-done with new valves. Never even looked at my bike! (very low hours). Once I asked for just the cost to replace the cam chain I was quoted at $500 and never even heard how much to shim the valves that needed it before I left after arguing about the price cam chain price. Am I crazy for thinking $500 is too much? This is from a local Honda dealer in MI.
It's all bulshit they rape 4 stroke guys, I would do a chain for 50 bucks and valve summing for 100 or a bundle for both at 100, you provide the parts.. Dealers suck ass
Bai nene, cum se face ca la masini schimbi lantu de diatributie la peste suta de mii si la motoare (care merg in acelasi regim de turatie) trebuie sa il schimbi dupa fiecare pornire. Zici ca le fac astia din guma de mestecat...
Sunt mai multi factori , 1 este că motoarele de performanta de 250 sau 450 au arcuri mult mai tari , să împingă valva închisă mai repede așa că poți să mergi la turații mai mari 12-14k rpm, asta înseamnă stresa mare pe lanț, apoi lanțul este subțire și mic sa fie ușor, performanta înainte de reliabllity, iar bucățelele din ambreaj care merg prin tot motorul ajunta la uzura lui prematura . Este ușor de schimbat și ieftin, asigurare ieftina pentru motor .. dar merge mult mai mult decât crezi .. iar daca se rupe in mijloc la nicăieri , sau pe o săritură la 10m in aer și se blochează motorul ai pus-o .. deci de aia 🤗 cheap insusance
Planned obselesance....to make money on parts...they can make these bikes very reliable if they wanted. I will never buy into the New 4 Stroke Finance Program !
Doing the timing chain can be a pain in the ass the first few times you do it, especially on DOHCs, but it's well worth learning how to do. Besides protecting the top end it can often regain some lost performance from the stretched chain allowing the cam timing to be slightly off. Helps starting too..
Good video
My person opinion but I myself feel it’s easier working on the Dohc bikes such as these Yamahas definitely more moving parts involved in the system so that would be a down side to it ... but such as the crf250r , 2003 xr650r I always felt it took longer and was more tedious to get timed perfect
"it has a washer so you cant loose it. *flings bolt and washerr across garage floor* unless if you loose the bolt"
Awesome vid man. great job
yeah acting comes natural to me ! :)
I'm happy your making detailed videos.. hard to find epically over a bro board of services
good video changing the chain.
take lots of time to get the timing spot on. this is not a place to rush. valve timing is very important. as you said, if valve timing off, starting will be hard and the bike will run like crap. go slow and do it correctly.
cannot wait for your next video professor.
People who are commenting about buying a 2-stroke instead and ‘this is why you buy a two stroke’ . These people ride 200lb vibrators because they are afraid of valves.
Martin Horvath, I agree, valves are a little extra work but if you know what your doing its not that bad. And 2-strokes (in my opinion) aren't very ideal for trail riding. I mean they have the benifits of a powerband but if your riding wide open flying through the trails you are going to blow your bike, all because they didn't want to deal with valves.
aww im sorry i didn't realize two strokes were too scary for you. get a real bike.
Ridingbab2 stroke wide open on trails does not even come close to constituting it blowing up..if motor is tight and maintained you can ride for hours wide open without any moyor problems whatsoever...id even say ur more likely to overheat a bike more by going very slow on yrails by not cooling radiator enough thru the no wind and more likely a problem will arise if u ride to slow on trails...
you make this look so easy. good job friend...
good video man you gave me hope i thought my bike was going to be a Pain but look simple its hard to find video's like this great work
Piston will not hit the cams, it will hit the valves!
Valve are in direct contact with cams on any 4 stroke so one valve get hit the cams are pretty much done too
@@carlmatischok2469, Actually valves are virtually directly contacting cams on overhead cam designed 2 and 4 stroke engines. My biggest concern was the "star bolt" description though. Then again I've worked with several "professional" shop mechanics over the last decade or so, who don't know what a TORX is 🤷🏻♂️
Great video though Romaniac. You may not know what the tools or parts are called, but you've got the skill to fix it. I just had to talk a little shit before the complement 👍🏻
very detailed and informative. You make it look so easy !!
Glad you liked it
really enjoy your videos, thank you very much for posting.
I'm just about to do a timing chain on a 150cc pit bike. Bought it for $100, so I figured it'd be a good platform to learn on before I do any major motor work on my YZ450F. Thanks for the detailed video my friend!
Awesome
Felicitari pentru ceea ce faci imi place 👏👏👏👍
Why didn't you check the state of the chain guide? That thing may have been worn out.
in the rebuild vid it was broke
I feel like I’m doing a mission on GTA Vice city
love your videos man,keep it up and thanks alot
how did you set the timing? the cams are in the right position but what's with the position of the piston/crankshaft?
I want an answer on this too!
I really like your paper idea!
Nice video. I know I will never try this but I eat here and watched it all hahaha
Sat* not eat. Hahah
pretty good job.
Good explained👍🏻
Timing chains last longer than timing belts, a timing belt will usually last about 40,000-100,000 miles before it needs changing on average. A timing chain only needs replacing if there is a problem with it, usually a chain will last the life of the Engine. Dunno what that is in Km's as we use miles in the UK. That's the rule of thumb in cars anyway, don't know lots about bike Engines.
Your videos are very helpful..
Thanks man, Im glad to hear that
2017 yz450f. i replaced the piston at 100 hours but didn't replace the timing chain, big mistake. bike was running fine at the track (40 hours after new piston) but when i got home and after washing it off i tried to kick start it - that first kick caused the chain to skip a few cogs and my engine became way off on timing. luckily i didn't do any damage to the engine. I replaced the timing chain and it runs and starts like new - really an easy process to change, probably less than 30 minutes - chain is less than 20 bucks at RockyMountainATV (RMC also has a video showing how it is done.
Timing chain goes out before the piston.
I have that same exact seat!!!
Is there a mileage or hours number on when you should start thinking about changing the chain?..Is that the 1st time its been changed on a 9 yr old bike?..Great vid bud..Your the only one out there supporting 4 strokes!
Michael Steven maybe every year change it
Michael Steven I replace my cam chain every time I do a top end rebuild. Its only about $30 for a chain and it could save you a lot of money in repairs later on
@@MtnPeakEnduropfff... I just buy a new bike every time I get off mine.
Gotta make sure it's in pristine condition.
What year is that 250f?
08
Its clean for an 08, I was seeing of this would all apply to my wr426. It has the DOHC, and 3 intake valves and all that, and your videos are super informational, thanks for making them, I learned a lot already, and have much more to learn
We're us the mark to tell when the valve cam things are right ????
Good job buddy
Nice work :)
nice video... gotta say not a fan of the organization .. and laying the brand new chain on the floor beside the old one :s
Haha, ocd? Yeah a little bit of dry leafes inside the motor won't hurt, plus I need to get my money's worth on that filer I spent money on it
How do you determine the need to replace the timing chain?
you will notice that the two dots on the cams will not be exactly aligned - meaning the chain has stretched. also, if you have it off you will notice that the links get pretty sticky/kinky
la pulizia è il tuo cavallo di battaglia !!!
Good video!
Thanks
Can u please tell me your opinion
I had some ticking noise on engine
1.changed cam chain
2.changed spring on chain tensioner (its mechanical with spring)
Ticking is still there,what it could be ?
Valve gap or piston slap or piston rod
Hey vegas dude, that cam cap retainer clip you found in the engine, where did you actually find it, was it in the big end or the rotor side, I dropped mine down there and wondering whats the best way to get at it, if it's in the big end?
it was a the bottom of the crank , it came thru my oil drain out, if you are lucky might stay out the the gear box , maybe put a magnetic bold it will hook up to it ant at least hold it in there
@@vegasromaniac thanks bro. Will do that!
Went to the local Powersports shop with a new cam chain in hand for my 07 YZ250F. Guy working the counter told me I was crazy for just asking for a valve adjustment/shim and a chain replacement and tried to tell me I needed to send the head out to get re-done with new valves. Never even looked at my bike! (very low hours). Once I asked for just the cost to replace the cam chain I was quoted at $500 and never even heard how much to shim the valves that needed it before I left after arguing about the price cam chain price. Am I crazy for thinking $500 is too much? This is from a local Honda dealer in MI.
It's all bulshit they rape 4 stroke guys, I would do a chain for 50 bucks and valve summing for 100 or a bundle for both at 100, you provide the parts.. Dealers suck ass
@@vegasromaniac you would replace the chain for $50 labor?? seems crazy cheap
@@ZmannR2 you would replace the chain for $500 labor??seems expensive
Is there tell/tell Signs the chain is going to break? If you don’t no the miles on it, king quad 450
I thought the chain was supposed to last the life of the engine? Isn’t that why they went from the chain to the belt and back to the chain?
You did it like a pro...
My 07 kx 450 has same problem i am replacing the chain today
How much mm is your stator tusk tool ?
Nice vid.. How many miles did you have? Was it hard to start or did not start?
+LR T hard to start, had blowback one of the intake valves didn't close anymore, bike is 9 years old, bought it used, don't know how many miles
Vegas RoManiac
Is it easier to start now with the cams aligned?
do you have any video about impact wrench . or this one which you use !?
I have a cheap ryobi works great
@@vegasromaniac tanx ... i will go and buy one.
Bai nene, cum se face ca la masini schimbi lantu de diatributie la peste suta de mii si la motoare (care merg in acelasi regim de turatie) trebuie sa il schimbi dupa fiecare pornire. Zici ca le fac astia din guma de mestecat...
Sunt mai multi factori , 1 este că motoarele de performanta de 250 sau 450 au arcuri mult mai tari , să împingă valva închisă mai repede așa că poți să mergi la turații mai mari 12-14k rpm, asta înseamnă stresa mare pe lanț, apoi lanțul este subțire și mic sa fie ușor, performanta înainte de reliabllity, iar bucățelele din ambreaj care merg prin tot motorul ajunta la uzura lui prematura . Este ușor de schimbat și ieftin, asigurare ieftina pentru motor .. dar merge mult mai mult decât crezi .. iar daca se rupe in mijloc la nicăieri , sau pe o săritură la 10m in aer și se blochează motorul ai pus-o .. deci de aia 🤗 cheap insusance
Cam chains have master links no?
+Matt D no master link on cam chains
some of them have master links, the cheap ones usually
Matt D if i ordered a timing chain and it had a masterlink id throw it the fuck out 😂😂
This video should be called "this is why 2 strokes are better"
Perfeito!!
Your accent it's weird, where are you born ?
Great videos btw
how did he know how to line up the chain properly?
Manual
link for an impact drill please...
+babur.karaoglu Link for drill amzn.to/2hz3vv7
babur.karaoglu
If you can spend money on a dewalt or Milwaukee. Get the brushless motors. They last 3 times the battery life between charges.
you're the f*cking mechanic I never had
my yz450 skip teeth
Daium
How many km's is the engine old?
+Hatagashira the bike is 9 years old, but I have no clue how old is the motor, or how many Km are on it.
Take a Link out!!!
The easy fix of the Century. You will have to buy a tool to take the clip out, that holds the links together
Great video 😏
E LA FASE??
Planned obselesance....to make money on parts...they can make these bikes very reliable if they wanted. I will never buy into the New 4 Stroke Finance Program !
Psston
Ever heard of a torque wrench SMH
Yeah they are pretty cool I have 2 i😬
@@MtnPeakEnduro 3