Thanks... This feels like I'm in engineering class watching a lecturer giving a lecture. Mannn you really takes alot of time to do this video

18:31 - Good call on the vacuum. My valve cover was absolutely covered in handfuls of pebbles and grit. That said, I’d also blast it with compressed air if available, since many of the pebbles were too big to easily vacuum.

Extremely detailed and helpful. Thank you so much!

😁🤷‍♂️👌👍 I have no words for ur effort and pain taken to help people , u r a legend mate . Maybe I should rate ur videos as most detailed videos ever in KZread, and one thing for sure , u r making dealers very upset 🤣. Great mate , pls keep doing the great work 🙏

Excelente video muy bien detallado gracias

Nice video man

Exelente video hermano .

I know this was a long time ago but what does the vacuum line on top of the engine do? Turns out the bike I bought is a 2002 but someone stuffed an engine from a 2009 in it and I'm trying to rebuild it at the moment since the compression is very low and it was only running on the left cylinder. What other parts should have been changed when swapping from an 02 engine to an 09 one? I don't want to go through the trouble and expenses of rebuilding it just to find out that the swap won't work. Great video btw!

Greetings from Jakarta, your tutorial is very excellent to understand. I have question, why didn't you set 2T to make camshaft-comp in/ex on TOP position ? If we compare with the manual, the "crankshaft need to rotated until 2T" but in this video, you passed the 2T and back to 1T. Please advise. thanks

@ninja250motorcyclemaintena7

3 жыл бұрын

My 2011 service manual is somewhat misleading. It first says to move the crankshaft to the 2T mark, but I don't know why it says this (also my version of the manual says to rotate clockwise, which is wrong). If you keep reading beyond this, it says, "#1 Piston TDC at end of compressions stroke: Inlet valve clearance of #1 piston, and exhaust valve clearance of #1 piston." This means that when you measure the valve clearances on piston #1 (left side of the bike), the crankshaft should be at the T1 mark with the cam lobes on piston #1 pointed away from each other. When you are done measuring clearance on piston #1, then move the crankshaft to the T2 mark with the lobes on piston #2 facing away from each other and measure the clearances on piston #2. This is what it says to do in the Clymer Manual. I would recommend getting the Clymer Manual if it is available in your country. The Clymer Manual clarifies this issue and it also says to turn counterclockwise, which is correct. Thank you for watching Andria. Let me know if you have any other questions.

@andriaginting60

3 жыл бұрын

@@ninja250motorcyclemaintena7 Thanks for your reply, so we need to rotate until the lobe not press the valve right ? Another question, is it true instead of replace the shim with the new size, we just replace the valve with the new one ? In my country, it's very difficult to find shim more than 3mm event not all size in the manual shim table easy to be found. please advise

@ninja250motorcyclemaintena7

3 жыл бұрын

@@andriaginting60 Yes. The cam lobes should not be pressing the lifters down on the valves that you are inspecting. The shims that I use are all under 3mm. I have never heard of replacing valves to adjust clearance. I get my shims online on Amazon.

@andriaginting60

3 жыл бұрын

@@ninja250motorcyclemaintena7 many thanks for your information. have you ever changed the timming chain ? do you have the video ?

@ninja250motorcyclemaintena7

3 жыл бұрын

@@andriaginting60 I have never changed the cam chain. Thank you so much for the positive feedback.

I highly recommend watching this channel w/ " video speed controller " chrome extension. It's nice cuz you can speed it up through the slow parts.

@emmettturner9452

Жыл бұрын

Even 5 years ago when you made this comment, this function was built in to KZread. :)

@jamie.miller.inspiring

6 ай бұрын

@@emmettturner9452 two speed maximum on YT settings. some people watch things way faster like 4-5x ;)

你好，如果有4个气缸，配气凸轮尖的朝向分别不一样，有什么简单的方法能够很快的去调整间隙，而不是一个一个测试后又轮流调整，从而如此反复

@ninja250motorcyclemaintena7

5 жыл бұрын

我不确定你是什么意思。您可以同时移除所有升降机，但这会增加您将它们混合起来的机会，这会花费您的时间，而不是节省时间。

How many miles should you be checking your clearance at? My 2009 ninja 250 has 10,480 miles on it. Thanks for your time!

@ninja250motorcyclemaintena7

7 жыл бұрын

Chris Jordan Hi, every 7500 miles.

@ninja250motorcyclemaintena7

7 жыл бұрын

According to the service manual.

@MachineGunner29

7 жыл бұрын

Ninja 250 Motorcycle Maintenance thanks a lot I'm taking it in to the dealership tomorrow

The 5 people who voted thumbs down came for an easy quick answer

I can't get my cams tdc I almost get there then it spins really fast past please help or would could it be ??

@ninja250motorcyclemaintena7

6 жыл бұрын

EchozAreEndls That happens to me too. Just rotate very slowly.

@ninja250motorcyclemaintena7

6 жыл бұрын

EchozAreEndls It has not been an issue for me though. I just rotate slowly so it doesn't go past

@ninja250motorcyclemaintena7

6 жыл бұрын

EchozAreEndls If you watch 38:55, you will see that I slow WAY DOWN when approaching 2T so that I don't slip past it.

I have a 2010 could that be why also I was looking up a few things and it says it's because the spark plugs are still in there could that be why no matter how slow I go it feels like I do that 360 dagree turn then it compresses then spins once really fast

@ninja250motorcyclemaintena7

6 жыл бұрын

EchozAreEndls I believe your 2010 engine is the same as my 2011 engine. My crankshaft is hard to turn at certain positions and super easy at other positions too. That's normal. I believe taking the spark plugs out will only make it easier to turn which is the opposite of what you want. Are you using the 2010 service manual? Does it say to take the sparkplugs out? I have never needed to to perform a valve adjustment.

@bmazza1250

6 жыл бұрын

I found to take out the plugs on another video but yes I'm going of the service manual just to make sure I get everything right and watching your videos thanks a lot for helping and actually replying it helps a lot!! Maybe I could post a video the better show you whats going on

@ninja250motorcyclemaintena7

6 жыл бұрын

Neither the 2011 service manual nor the Clymer Manual says to take sparkplugs out. You can if you want but it shouldn't be necessary.

@ninja250motorcyclemaintena7

6 жыл бұрын

EchozAreEndls Absolutely! I would love to see inside another 4th gen Ninja 250 engine to compare it to mine. So the 2010 service manual says to remove the sparkplugs to perform a valve adjustment?

@bmazza1250

6 жыл бұрын

No the manual says exactly what you did but I was watching a video and that guy said to take the spark plugs out

how many moles are on this bike?

@ninja250motorcyclemaintena7

5 жыл бұрын

Valve inspections are necessary every 7500 miles. My bike currently has 35,300 miles. I bought it in 2013 when it had 1000 miles on it.

@send74vs

4 жыл бұрын

@@ninja250motorcyclemaintena7 - yes , in my service manual is writen that it needs the valves clearance at 12000 km .

Well, seems like you're one of those rare riders these days that seem 20k as an inevitability rather than a time to look for a new ride. I don't get that mentality, especially when very few maintenance intervals fall on this mark, unless they've never been done. I'm currently riding an 09 with about 19.5k and am getting ready to do this just for piece of mind as the third owner.

@ninja250motorcyclemaintena7

5 жыл бұрын

I planned to get a new one after one or two years for peace of mind too, but now I'm kind of curious to see how long this thing will last (I heard one guy put over 100,000 miles on his--though some people say the engine will last only for 50,000). I run this thing on the freeway at 12,000 rpms three or four times per week and it runs smooth as silk (this bike is not a toy for me; it's my daily commuter). Plus, I can't really afford to buy a new bike every couple years. It's nice having low insurance and no bike payment. Also, I don't want to have to learn how to work on a new bike if I don't have to. I have to do another valve adjustment in a couple months. Don't have my garage anymore, so will have to do it on the street.

@hellishgrin4604

5 жыл бұрын

Ninja 250 Motorcycle Maintenance I'll be waiting to see how that goes, but as a side note, do you think it's possible to remove the valve cover without removing the radiator? Looking at mine, I feel like it should be possible.

@ninja250motorcyclemaintena7

5 жыл бұрын

I tried it once, but could not make it work. Even if you do succeed, measuring valve clearance will be much more difficult if you can't come in from the front of the engine.

@dmitriypanasyuk1409

2 жыл бұрын

You're a dumbass the world doesn't revolve around you my 2011 ninja 250r with 8k miles is already needing this bc the engine is ticking . I ride every day all day hard af unlike ppl like you . this is a lifestyle . one that needs maintenance if you want your bike lasting longer than that 20k miles . lmao . ill never understand your kind of mentality .

15:10

@jesseb6911

5 жыл бұрын

16:53

So it seems that the ULTIMATE rule is to buy a 2007 or OLDER 250 ninja, much easier valve maintenance... Hate those shims ;(

@ninja250motorcyclemaintena7

5 жыл бұрын

Yeah. The bucket and shim design is definitely harder to deal with, but not so hard once you get the hang of it. Don't let that prevent you from buying a fourth gen. They're great bikes and look awesome too.

L