How to adjust valves and Timing on 2006 YZ450

Рет қаралды 23,544

4 жыл бұрын

Another Maintenance Video for you guys. This time on a 2006 Yz450 Four Stroke. This video covers Timing and Changing Shims as well. Watch and have confidence to Do it yourself. Like & Subscribe if it helped you!
Music : Daniel Groza
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Thumbnail: Iphone
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Camera : GoPro Hero 8 black
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Editing : IMovie
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Camera angle : Chin Mount
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Toys:
2016 YZ450F
Fuel Injected
Stock
2005 CRF 450R
Pro Circuit Exhaust
Steering Stabilizer
Fat Bars
Dress up kit
Detailed
Showa Suspension
Twin Air
2013 RMZ250 Fuel injected
Twin Air Air filter
Moose Racing Kick start
Moose Racing handle bars
Graphics
FMF Exhaust
Fresh top end
2009 KX250F
Recluse Clutch
Dress up kit
Exhaust - not sure what kind
2006 yz450f
Pro Circuit Exhaust
tuned
Rest is stock
Quad: 2008 YFZ450
Exhaust : FMF
Handle Bars : ProTaper
Carb and Carb internals :
Adjustable fuel Screw
Jets : 45 Pilot 165 Main 35 Leak
Needle in 4th Position
Tps Adjusted
Oring Mod
Quad : 2006 TRX400 Stock
Bike: Crf50
Engine: piranha 125cc
Carb: Mikuni
Rims : BBR
Tires : Dunlop
Forks : BBR
Triple Clamps : BBR
Exhaust : BBR
Gas Cap : BBR
Frame : powder coated green crf50
Grips : Protaper
Handle bars : Sand industries
Crossbar Pad : Protaper
Filter : UNI

Пікірлер: 47

@stevenbitter9241 2 ай бұрын

Very helpful. Thank you

@slavsquad 3 жыл бұрын

Brian F - yes I took the chain off the cams but not off completely. You want to make sure that the chain doesn’t fall down in the engine once you take it off the cams. Hope that helps. Lmk if you have any other questions :) Ps- I got an email with your question but on here it doesn’t show the comment. Unsure why

@edwardjayfix 3 жыл бұрын

Good shit!! 🤜🏻

@6Twisted 2 ай бұрын

If the ignition timing and valve timing are tied with a chain how did you get them out of sync in the first place? I need to replace the decompressor spring on my 190 but don't really mess with the timing if I can help it.

@brianrisdon9448 Жыл бұрын

I’ve been trying to start my buddies 05 YFZ450 for months now. He had it in pieces. Unfortunately he passed away before he could get the quad back together. The family reached out and asked if I would wanted to buy it. He was able to get the engine back together but not back in the bike. That’s kinda where I took over. I was able to get spark and fuel but it wouldn’t fire. After checking everything I could think of I think I may have the same issue that you did here in the video. 🤞🏼

@slavsquad Жыл бұрын

Hey I’m sorry to hear about your friend! That’s terrible :( But it’s cool your taking over for him and finishing it for him! I hope my video will help get that quad running great again!

@jonathanroy9112 3 жыл бұрын

definitely is going to help me a ton if I get this bike over the weekend. guy says it need timing adjusted and it won't run because of that. no clue about anything with timing I'm not dumb with motors just never had any related issues with timing. if you know what it could be, the bikes a 2002 yz450f and the guy says it won't run because it needs the timing adjusted.

@slavsquad 3 жыл бұрын

Hi Jonathan Roy. If you flash a light in that hole you’ll see the flywheel and on the flywheel there is some markings. You have to match the marking on the flywheel to the little marking on the case. Go for his forum it might be helpful with more specifics www.southbayriders.com/forums/threads/102894/

@jonathanroy9112 3 жыл бұрын

@@slavsquad ok thank you

@slavsquad 3 жыл бұрын

@@jonathanroy9112 as for what the issue can be with that 2002. It could Be a lot of different things. Timing is not hard to check. Study my video and watch some others as well so you got it down. Then check on the spot. If timing isn’t off then maybe you have other issues to worry about

@jonathanroy9112 3 жыл бұрын

@@slavsquad what do you think I should do ? buy it and then check or try to check there? do you think 1500 would be worth it for something that could be kind of risky? thank you for your help

@slavsquad 3 жыл бұрын

@@jonathanroy9112 if the bikes in great shape and only needs timing done then that’s a good deal. But I would definitely check timing on the spot because if it’s actually needing a rebuild then your looking to pay another 1500 probably. Just interesting why he wouldn’t just do timing himself cuz it’s pretty simple. Could just be someone who doesn’t touch engines at all or someone who’s using timing as an excuse 🤷🏻‍♂️ For me it’s to risky. I’d rather just buy a running bike or something that’s blown that I know needs a rebuild vs something that your not entirely sure what the issue is. One way to find out. Meet up and check

@tonyrogers5488 3 жыл бұрын

Pretty sure you want to set your timing before you adjust your valves. The cam is spinning as your measuring the second cam. The gap will change as the cam spins.

@slavsquad 3 жыл бұрын

Yes I set timing first. Loosened the cam chain and then measured.

@listomoto 2 жыл бұрын

is this the same procedure for yz250f 2007 and 2008

@slavsquad 2 жыл бұрын

Yes it’s the same. Just different shim sizes. 250 has smaller shims then 450. That being said the valve clearance is probably different on a 250 then a 450 as well

@jonathanroy9112 3 жыл бұрын

question my bad if it was shown in the vid. how did you get the bottom part like the one on the bottom end to top dead center? you said that you couldn't see the marking at all and then it cut and you had it top dead center

@michaelpresey2273 3 жыл бұрын

You just have to turn the fly wheel counter clock wise until you get the third marking all the way t the right there should be a marking the looks like a H and then to the right another "l" mark

@saintzmedia4203 3 жыл бұрын

i have a big bore kit on my 450 , is the timing the same as a stock bike?

@slavsquad 3 жыл бұрын

I don’t see why it would be different. But I don’t know that for sure sorry :/

@FullPayGaming 2 жыл бұрын

What if we dnt have any shims installed? I purchased new cylinder, and head. Dropped head off at shop for them to install new performance valves so no shims installed. So whats the way to properly do the math without existing shims installed

@slavsquad 2 жыл бұрын

Hello So are you saying there’s no shims necessary at all with the new valves (if so I’ve never heard of it so couldn’t help you there) Or your saying there’s no shims currently in there and your trying to see how to find the right shim sizes?

@FullPayGaming 2 жыл бұрын

@@slavsquad Yes to second question. I figured it out though.. I just tossed the old shims thats where in my old head for a starting point, then measured and readjusted valves with new shims after that.

@slavsquad 2 жыл бұрын

@@FullPayGaming That’s what I would have recommended :) Glad you figured it out!

@saldanavlogs2255 2 жыл бұрын

One question what’s the timing mark cause idk I look at other video it says this is the timing mark and I look at your video and I feel like your right but I can’t see the timing mark on yours plz help

@slavsquad 2 жыл бұрын

What timing mark are you talking about specifically? On the magneto or on the cam gears?

@saldanavlogs2255 2 жыл бұрын

@@slavsquad the one I’m talking about is the magneto

@slavsquad 2 жыл бұрын

@@saldanavlogs2255 you just pull the upper plug on the magneto cover and look for the marking next to the little h shaped mark. usually you have i believe a fire marking and thats first. you need to be on the second mark which is TDC. sometimes that Mark is shaped as a T for Timing/TDC. you also have to have the Cam Sprockets markings properly as well. I followed Yamaha Owners Manuel so its correct

@josemanuelarnaud5233 3 жыл бұрын

450

@jaydenargo5442 2 жыл бұрын

how do you know if you valves needs adjusted ?

@slavsquad 2 жыл бұрын

Loud ticking from the head. Loss of power. I believe lower compression as well.

@jaydenargo5442 2 жыл бұрын

@@slavsquad thanks man !

@slavsquad 2 жыл бұрын

@@jaydenargo5442 my pleasure

@janmanuel6964 Жыл бұрын

Hey this is an insane video I do have a question though. Even though this is so old I’m taking the chance to see if you can help me. So I’m trying to get the Cam Cham tensioner to lock but with no luck, I can turn it and the chain becomes loose but after a few turns it never locks and even if I keep turning it won’t lock and the chain becomes tight again. Man what am I doing wrong herreee 🤣

@slavsquad Жыл бұрын

Usually if you turn the flathead in all the way it should lock Worse case Just take the tensioner off completely? Don’t see why not

@janmanuel6964 Жыл бұрын

@@slavsquad yeah my locking mechanism was faulty I had to remove it completely and even then it didn’t lock while it was outside the Cam chain housing. So yeah that got fried 🤣 I’m still using it like that tho it don’t matter.

@janmanuel6964 Жыл бұрын

Though now I’m working with the shims, my two exhaust valves were way off (.007) would not even go through the valve clearance easily but all my intake valves were in spec (.004 and .005) I’m just going to go down two sizes on exhaust valves (if I’m allowed to) and get those .004’s to .005 on the intake valves and call it a day. Does this sound familiar to you or am I just making all this stuff up? Haha first time taking my bike apart and having looked like 3 videos I think I’m in the right path what do you think?

@slavsquad Жыл бұрын

@@janmanuel6964 long as it’s putting tension you should be solid lol

@janmanuel6964 Жыл бұрын

I’ll try to do my best and post progress in here g it’s a yz450f 2007 always ran fine but I started wheeling like a lot and now it has lost compression and it also gets hotter than usual so yeah I figured my valves were off and to my surprise they were… waaaaay off 🤣 at least the exhaust valves, intake valves are fine but I’ll adjust all of them just in case I have to sell the bike that way the new owner will get like a new bike haha 🤣 but thanks for your response man I just hope I end up firing up my bike right just like you did there in the video ❤️