?Valve adjustment at CBR250R 2013 | How difficult it can be
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- čas přidán 13. 07. 2024
- 00:00 Starting
00:04 WARNING
00:08 NOTE #1: Cold Engine
00:18 NOTE #2: Coordination Of Expectations
00:53 Plastic Covers - Removing
05:08 Fuel Tank - Removing
11:52 Snapshot 1#
12:51 Lowering The Radiator
16:46 Upper Rubber Sheet [#1] - Removing
17:53 Throttle Cables - Remove
19:15 Middle/Small Rubber Sheet [#2] - Removing
19:34 Four Connectors - Disconnecting
20:22 Tying the electrical wires and cables to the frame sides
21:56 HEAT GUARD Rubber Sheet [#3] + HOSE, AIR INJECTION + Plug CAP - Removing
25:39 Wiping The Dirt
25:58 Snapshot 2#
27:01 Left Crankcase - Removing Two CAPS: Crank Shaft + "T" Mark
28:39 Cylinder Head Cover - Removing
31:45 Snapshot 3#
32:29 Top Dead Center At Compression Stoke
34:27 Valve Clearance - Check
38:34 Valve Adjustment - 1. Rocker Arm Shaft Caps - Removed
41:16 Valve Adjustment - 2. Blocking the passages into the engine, to avoid shins from falling in
41:54 Valve Adjustment - 3. Rocker Arms - Releasing / Remove the Rockers shafts
42:57 Valve Adjustment - 4. Take the old Shims Out
43:39 Valve Adjustment - 5. How to hold the rocker arm staying back
44:02 Valve Adjustment - 6. Insert A New Shim
47:24 Valve Adjustment - 7. Rocker Arm Shafts - Assembly
49:11 Valve Cover - Assembly
53:45 Credits - Auta a dopravní prostředky
Best valve adjustment I've seen, appreciate, enjoy your ride
Thank you sir♥️👍
Thank you for this very high quality guide! The best valve check/adjustment guide for this family of engines (250 and 300) on the internet! And you didn't even have to say one word! That's real quality production! 👍🙌⭐
Thank you sir💖👍
My question - at this point did you notice any functional degradation? Difficulty starting, loss of performance, loss of fuel economy etc?
@@karmasters
Hi
No loss of prefrormanc.
According to the manufacturer's recommendation, in the area of 50,000 km, a valve clearance test should be performed. I received the motorcycle (a second one) with 66,000 km, when this test was not performed on it. So I had to do it.
Besides, already at this stage there was a problem of hard starting in the morning, when the engine was cold, and lean fuel mixtureI, so I thought that maybe it was also related to the adjustment of the valves.
I am currently in the process of general overhaul of the upper engine, because the problem got worse and it turned out that there is a decrease in compression and a slight oil leak into the combustion chamber.
Thank you for your time to answer. 🙏
Most appreciated.
@@karmasters
As a principle, these valves have no tendency to go out of adjustment, and in my case, the deviation I found is relatively minor. A sporty rider who grabs every drop of extra power would probably feel the difference.
thank you
Well done
Excellent thanks
thank you so much
Well explained sir thankyou so much ❤❤😊😊😊
😊❤
Very good Explained.!!
Thanks you sir👍👍👍
Neatly done..
Thanks👍
Brother my timing chain tensioner go bad after 5-6 month ..is it possible to make a manual one
I have an explanation on the slides here
czcams.com/video/RwPrGfMahtk/video.html
And I have the video I made for the Honda Innova125i, it's the same procedure:
czcams.com/video/zCPtm9Mbh0I/video.html
There is the guy who also explains why it is necessary to put the plunger inside before installing it back in place:
czcams.com/video/HRa3AmwONxc/video.html
How did you managed to put that intake rocker arm shaft bolt into its place without removing the radiator hose 😮
See at time line:
40:40
42:20
47:39
The radiator hose is flexible, if you want you can apply silicone grease on that hose.
There is NO need to removing the radiator hose.
Hey buddy, I own a CBR 250r abs, is seems my abs Malfunction indicator light is flashing, where do I find the error code , and I lost the error codes chart, is it possible to get a pdf or picture of error codes chart, please help. Thanka
I have the model without ABS, so I did not go into studying this topic in depth.
You can enter the CBR250-dot-net forum, and search there.
If you are into the hobby of do-it-yourself mechanics, you must purchase the appropriate literature for yourself, it is not relatively expensive. Sometimes a copy of Honda's original book is floating around the internet for free, so you can try your luck, but I think there's a copyright issue here, so I really don't recommend it.
On eBay you will find a second hand original copy, it is really not so expensive. And of course there is the excellent Haynes guide.
What is the manufacturer's standard shim thickness for in & out valves?
Look at the top bar on the screen
34:33
IN
0.16 +/- 0.03mm
37:01
EX
0.27 */- 0.03mm
There are no shims that are standard
There is a gap which is has specification,
and to which the shims are adjusted to.
Hello Sir Can you shoot a video of 2023 honda pcx ECM ve TP reset and ckp teaching pure in this field, I really need it sir
Hi sir. Sorry, I only make movies on the motorcycle I own, cbr250r 2013, it's a private motorcycle. I repair and film in my free time, it's my hobby, it's not a profession. I'm guessing the principles are similar, but you need to read a service manual that is for the pcx, the DTC code numbers can be different.
czcams.com/video/Mx3DGOAhVDM/video.html
After replacement of shims on ex side (0.26mm)there is a valve sound very irritating
Hi. I'm sorry to hear about that.
Mistakes like this can happen to anyone.
If it's a metallic noise, or a noise that indicates improper assembly, etc., don't start the engine again!
In such a situation there is no choice but to open the valve cover again and see where the repair is going wrong. There are many possibilities, I won't try to guess them all. And it is possible that something else broke regardless of the good current fix, so-called, just a bad luck.
If you don't have the time and patience, give the job to a mechanic who has time and patience, otherwise instead of repairing you only do more damage.
after doing all shim settings..still sound came from engine head..
Hi
A metallic noise indicates a problem that should not be neglected. A metallic noise from the top of the engine can come from any of the moving parts. Timing chain, chain tensioner, worn rocker bearings or pivots...worn valve seats or guid...and many others.
You have to check until the problem is found. Running an engine that has a mechanical fault may increase damage!
Don't hesitate to contact a qualified mechanic you trust on.
for valve check.. compression test is needed?
@@mycbr250rdmotorcycling7 while performing clearance check...i m applying moderate force....to filler gauge..is it ok...applying to much force give higher reading... please help
@@pradeeppatil8791
It is difficult to impossible to draw conclusions from a compression test on a single cylinder engine. It's pointless, the generic and cheap equipment is not accurate in the results. It is unnecessary.
Other signs are checked, let's say a plug wet from oil, smoke coming out of the exhaust, and so on.
@@pradeeppatil8791
Incorrect measurement of the valve clearance will lead to incorrect selection of shims. Valves that are not adjusted according to the specification cause a decrease in engine power, and in the case of a significant deviation from the specification, the large deviation from the specification causes an accelerated worn. One "station" out of specification (0.025 mm), does not create immediate damage, just please do not neglect it, and fix it at the next opportunity.
Adjusting valves is an operation that requires a lot of work, precise work, a lot of patience, and high mechanical skill, and if mistakes are made, this operation also has the potential for great damage. It is recommended to give such work to an expert in the field.
I gotta wonder.. How many miles? or km?
~66,000km
From where you got shims
@@amaanansari5714
Hi. You will find shims at any motorcycle spare parts supplier. It goes by diameter and by thickness. There are suppliers who sell shims only in 0.05mm increments, and there are suppliers who sell the full range, which is in 0.025mm increments. Original shims cost more. I found the cheapest deal on AliExpress, they sold me a set of five shims in increments of 0.025, let's say: 1.950, 1.975, 1.100, 1.125, 1.150. In any case, it is necessary to check the thickness with a micrometer, to avoid unpleasant surprises.
Bro my shim has fallen while replacing will it go inside crank case?
Not for sure. But in principle it is possible.
Not the end of the world, with a lot of patience and work time it's not that bad.
You must find the shims that fell in, it must not be left traveling in the engine.
1. It is possible that it is hiding inside the engine head.
2. It is possible that it fell into the timing chain area, maybe stuck on the chain?
3. It is possible that it stopped under the right engine case (then you have to open the right engine case)
4. And yes, it is possible that it rolled up to the crankshaft box.
The openings through which it rolls in, it is possible to extract the shims through those openings, but it requires a lot of patience. A magnet caught on a very flexible wire helps, maybe a borescope?
I hope it will find somewhere easy to get to.
Maybe this video will give you a hint where to look, and how to prevent it from happening again (before replacing shims, it is recommended to close the engine head openings, at the top of the engine, with paper or a towel):
czcams.com/users/shortsUitxd1tHr8c?feature=shared
@@mycbr250rdmotorcycling7 thank you bro
@@mycbr250rdmotorcycling7 bro there is a small hole in left side of head will shim go through that
@@adarshs7456
Sir, as a rule, the openings and passageways at the engine head drain engine oil to the opening of the timing chain.
Is there also an opening on the left side? Because the timing chain opening is on the right side.
Above, at the center, there is the bore for the exhaust manifold, and the opening for the plug, but these two bore are in the center of the engine head and not on the side. You can ask, and also upload pictures, etc., in the forum cbr250r point net.
In principle, any opening that is larger than the dimensions of the shims the shims can enter and pass through.
@@mycbr250rdmotorcycling7 ok bro
Your adress
Bro open 1 branch in Bangalore
I did "Bangalore" at google
Hello India👍💖
Are you in Bangalore bro
@@adithyabr4239
No sir
I didn't know that Bangalore it's in India
I'm from Israel
Hahahaha okok
I have
one advice ..always remove fuel connector pipe from injector side..it has much better access for pressing the grey clip through a plier than the fuel pump side
10:20
Thank you for your important and supportive response👍
Disassembling the top connector leaves most of the fuel in the pipe.
But you are right, next time I will try to disassemble the lower connector.
Because of the difficulty access, there are those who broke the tube of the fuel pump.
If the tube of the lower connector is damaged, it is much easier and cheaper to replace the tube there.
@@mycbr250rdmotorcycling7 that was my only point brother..anyways nice video
@@mycbr250rdmotorcycling7 also I am facing vibrations around 6 to 7k rpms like hand numbing ones and almost no vibrations upto 5k rpm is it normal? Can you share your experience ..also I have no bar ends on both sides could that be the reason?
@@diymechanic4035
I am facing vibrations around 6 to 7k rpms like hand numbing ones and almost no vibrations upto 5k rpm is it normal?
No it's not normal. Vibrations in the handlebars can lead to loss of control, it's dangerous to ride like that.
..also I have no bar ends on both sides could that be the reason?
Yes. The role of the weights(bar ends) is to prevent vibrations.
You need to put the weights back in place. Each side each weight consists of two parts that together weigh close to 500 grams:
WEIGHT A, HANDLEBAR
53103-KYJ-900
WEIGHT B, HANDLEBAR
53104-KYJ-900
czcams.com/video/AXiEslXoK2M/video.html
@@diymechanic4035
If after completing the missing weights you still feel vibrations, then you need to check the rim of the front wheel and separately check the front tire, probably one or both of them are damaged. But start with the weights.
Issue with valve guides kindly suggest whether to replace head assy or only guides. Need your help can i get you mail id or insta id
The installation of the valve guides requires special equipment, as well as high technical ability in extracting the damaged guides, and inserting the new guides at the correct height.
Even if you replace the valve guides you will still be left with the used valve seats, and you will be left with the used mating mounts for both camshafts, so it also depends what their condition too?
Why did you decide to replace the guides, did you measure the inner diameter with special equipment? Or do they have noticeable mechanical damage?
Replacing the main head part, the engine head, is also a matter of budget.
Only you know what is right and good for you.
You can also ask in CBR250R point net forum.
I found this videos on CZcams too:
czcams.com/play/PLjksoAp4z0aCKk8MxtLA-80R9TjrsUMua.html
@@mycbr250rdmotorcycling7I appreciate your suggestion 👍. Purchased pre-owned cbr which was having hell of head noise. Tried to adjust shims several times but no use problem reduced to an extent.
Removed head assy and sent to other place far away for head work. As told by him changed 2 guides installed same valves and cleaned completely.
Mean while I installed new block piston,rocket arm, cam shafts and installed reworked valve head assy. Every thing was working fine at first start. After keeping bike for ideal run (4 hrs) gradually started hearing abnormal noise from head assy but it was minimum. Went for a ride 950kms. Started hearing very abnormal metallic sound from head assy.
After returning I inspected valve clearance it was very less inlet side ( 0.06, 0.10) exhaust side ( 0.13, 0.14) adjusted shims inlet (0.13) exhaust(0.23). Still abnormal sound but less than previous one.
Now after hearing to you i feel it is better to change complete head assy or second option to get used head assy.
excuse for bad English grammer
@@vnnavin
Thanks for sharing.
A do-it-yourself hobby, like any other hobby, costs money, and does not save money: The price of the technical literature, the price of the tools, the time you have to wait for spare parts, and more time, for example: The price of the learning time, this includes learning from mistakes. For example: it happens that assembly does not go as it should, or a new fault appears. It can sometimes be a frustrating process..., But from hobby we should be enjoy…🤭😳
If you run out of time and energy for the hoby part, you can always go back to a professional mechanic you trust on, who will do the repair for you.
Everything is also a matter of budget, sometimes it is not economical to fix.
I am also just sharing,
In the end only you know what is really best for you.
@@vnnavin
P.S. For my English, I use Google Translate all the time.
It's not a good English, it is what it is.
thank you
Your welcome👍