Kawasaki Ninja Restoration [Part 1 - 2020 engine rebuild]

We got an 07 Kawasaki ninja 250 for a good price so my girlfriend can get into riding. BUT FIRST.... We decided to tear it all the way down. As we do. So check out part one of the build series for this bike and let me know what you think!
Don't forget to drop a like and hit the subscribe button so you can keep up with all the nonsense we do down here.
follow us on facebook at / iarebiker
Enjoy!

[@xpresa1200]

hai may i know what size honing you use.. 2 inch or 3 inch

[@ThrashTestDummies]

This one goes from about 1 1/2 inches to 4 inches. Hope that helped!

[@benbaird8153]

This has been extremely helpful. Now I just need to find where to get the damn rebuild kits lol.

[@HonorioSoto]

thanks for making this video, I'm rebuilding a 250 also. Same year.

[@ThrashTestDummies]

No problem man! Unfortunately, I will not be finishing this series. But I will be doing other builds soon. I am only waiting on parts and tools to come in. I will be doing a cafe racer, slimmed down performance based vulcan 1500, my road glide, a honda rebel 250 as a bulletproof offroad bike, and a few others. Keep watching!

[@efrenromero8768]

Thank man I have a 250r and I'm just trying to find out where evrything goas and what I need

[@ThrashTestDummies]

If you have any questions feel free to shoot me a dm on the Facebook page. This project has been paused for the moment because I'm working on moving into a new house. But once that's settled I will be picking up where I left off. Thanks for watching!

[@danh8537]

Valve design is good from an assembly point of view. Thanks for video.

[@JAVTROOPER]

Thanks man for for this video. Helps alot

[@ThrashTestDummies]

I'm glad it helped you!

[@maidalyduong9226]

AMAZING VIDEO BTW TY!

[@ThrashTestDummies]

Glad you liked it!

[@emmettturner9452]

Couldn’t read the bottle but I see that was Permatex Ultra Slick Engine Assembly Lube around 4:16.

[@ThrashTestDummies]

Yes it was. I always use a heavy assembly lube when I rebuild an engine.

[@xxnekoojoysumaxxoverjoy7822]

Where did you buy your parts from, did it come as a kit or did you buy everything separately

[@JacobVaughan]

great video, many thanks. Did you measure the valve seat pattern or just do a basic lap and call it a day?

[@ThrashTestDummies]

Nah I just lapped it. There wasn't really a call for doing anything else.

[@JacobVaughan]

@Thrash Test Dummies yeah makes sense. I'm doing a top end on same engine and have noticeable valve leak on one intake valve. Gonna do a lap and hope for the best 👌

[@dustinlee4566]

I have a 1500 Vulcan classic and I am pretty much planning to do with it what you did with your kawassexy

[@ThrashTestDummies]

Awesome man. If you have any questions let me know. It's pretty straightforward though.

[@dustinlee4566]

Anyway where did you get that ducktail back fender is it one from one of the 800s or is the Harley fender

[@ThrashTestDummies]

It's one from an 800. But I am going to most likely make a carbon fiber rear fender for it.

[@christianrees3073]

Can you pls list all the tools needed for this job

[@miggygarcia8381]

Hi, may I know what is the red liquid that you put? Is it grease or engine oil? And currently Im disassembling my engine for the first time and getting hard time how to take off the gear on the center engine, that gear is the one when you open the crank case on the left side

[@t0xicruben953]

Its permatex ultra slick engine assembly lube, was reading trough the comments and he said hes using this

[@maidalyduong9226]

whats that red sauce ur pouring everywhere? :o

[@ThrashTestDummies]

That is break in oil. It prevents wear during the first startup of the bike until the oil system has had time to disperse oil through the motor.

[@christianrees3073]

Is this a 2009 Kawasaki 250r

[@BassJuice]

Mate,i've got a few questions because i am preparing to restore an 1994 Eliminator EL250B ,same engine as this one (EX250) and i am wondering if you would be nice enaugh to enlight me please and answer to my questions. 1)You torqued the screws in spec ? (if yes where you find them,the specs) 2)How the rocker arms are staying in place,they are hold by the camshafts ? 3)You kept the rocker arms,valves and their springs on their og pistons,or it doesen't matter where it goes ? (usually people says to keep them as you found them) 4)If you are honing the cilinder walls you need to order bigger segments as you have to do with the rod bearings if they wear and eat into the shaft ? 5)Didn't you changed the rod bearings too ? I am doing this to my engine because used to eat a lot of oil,and in a week started to do a louder and louder noise everyday then i stoped using the bike to prevent further damage until i'll figure the problem.The internet and the intensity of the noise bring me into thinking those are the rod bearings.It sounds exactlly like hitting 2 metal parts toghether.Here comes the last: What do you think it is,and if you think i am right,could be something more than this,or it could have been just eating the oil to the point where it got no more to lubricate the parts? It happend during a week progressively and i noticed,i think to late...

[@JacobVaughan]

I'm doing top end on exactly same bike, 94 eliminator 250. Torque specs are in the service manual, I found a ninja 250r pdf on google which is the same. Rocker arms are held in by the cam shafts and just come out when you remove the shafts. Rocker arms and springs don't matter which valve, ideally valve should be kept to the same if possible but if your lapping doesn't matter

[@JacobVaughan]

Doing a basic hone as well, just using same pistons with new rings. Ideally should use a dial bore guage to check the bore run out but I think I'll just risk that.

[@halimlim7688]

@@JacobVaughan bro did zzr250 crankshaft same with ninja 250 crankshaft?

[@JacobVaughan]

@@halimlim7688 yup

[@halimlim7688]

@@JacobVaughan did you have use it on ninja 250?

[@chris_topher1984]

where did you learn how to do this?

[@ThrashTestDummies]

Over the years from people a lot older and more experienced than myself. Then eventually did it enough times to be able to rebuild any engine with my eyes closed. Lol