Honda CR125 Rebuild || Bottom End Part II

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If you have never rebuilt a two stroke motor, this series is for you! I take the time to go into more detail than most other videos so you can really understand how to rebuild your Honda or other make two stroke motor. Its not THAT hard to rebuild a two stroke if you have the patience and a little bit of skill.
In this video I go over every step for assembling the engine after the case halves are mated. You will get every detail so you won't miss a single step.
Thank you for watching!
/ brian_d_mobley

Опубликовано:

6 окт 2024

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Комментарии : 34

@johnchristie9106 Год назад

simply brilliant

@brian.d.mobley Год назад

Thanks John!

@MattTraficante 3 года назад

Good video !!! But man it hurt seeing those dry plates :/ soak them for a few hours before hand

@brian.d.mobley 3 года назад

Hey Matt! Youre right. I wiped them with a thin coat of oil, but soaking would have been better. After I finished the assembly, I filled the gearbox with oil and rotated the crank several times over the following few days to get that oil spread around. It all ended up working great, thankfully.

@MattTraficante 3 года назад

@@brian.d.mobley that’s good glad it worked out for you ! Keep up the good work people really benefit from these kind of videos

@a.j.dasilva578 3 месяца назад

What color Cerakote was used on the clutch cover it looks like the bronze but a little darker was kinda curious cause I have been wanting to do mine and wanted to do a different color than the standard bronze and I’m really digging the color of yours.

@brian.d.mobley 3 месяца назад

Its Burnt Bronze. I did a video on Cerakoting that cover too if you are interested. Its in the channel library.

@stevereinecke2392 3 года назад

how you get it all so clean

@brian.d.mobley 3 года назад

Haha! Back then, lots of brake cleaner and scrubbing. Now, I strongly recommend vapor blasting. I use Houston Vapor Blasting and the do amazing things. Fast too.

@stevereinecke2392 3 года назад

@@brian.d.mobley building my own vapor blasting cabinet . cant wait to see how it turns out my parts

@brian.d.mobley 3 года назад

@@stevereinecke2392 that’s cool! I’ve thought about doing that too, but I’ve got so many projects ahead of that!

@stevereinecke2392 3 года назад

where can i get a manual and service manual for 1991 cr125r

@brian.d.mobley 3 года назад

That’s an old manual. I don’t know. But I’d try looking up Facebook groups for that bike and register on Thumpertalk and pose the question in one of their forums.

@dropem4371 Год назад

Hey Brian have a 2001 cr 125 and when i have all the shift components off except for the shift drum and the shifter bolt and I have a socket and ratchet on the shifter bolt I can shift thru all of the gears. But when its all together I cant shift thru any when i try to shift up its like there isnt a gear there but when i shift down it moves a 1/4 inch and stops. So i tore it apart and found out the shifter drums springs didnt have a plunger that sits on the pawls on either of the 2 springs and i was wondering what your opinion was on it do you think that is the reason for it not shifting when all together. please reply i'm worried its my trans thanks!!

@brian.d.mobley Год назад

HI DropEm. I had to read this a few times, but I believe what you are expressing is the 2 plungers that encapsulate the pawl springs are missing. If this is the case, then 100% the transmission will not shift correctly in their absence.

@dropem4371 Год назад

@@brian.d.mobley Ok thanks really appreciate it

@jothamkeller7227 3 года назад

Is it just me or did the power valve assembly just get completely forgot about😂? Good video tho

@brian.d.mobley 3 года назад

Hi Jotham. This engine is a shifter kart motor and did not have a power valve. Also, this is a botttom end assembly video so it’s not really about the top end components. That said, I did an extensive video on the top end and power valve in this video. Hope it helps you!!! ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-aIKeMiv4O3M.html

@jothamkeller7227 3 года назад

@@brian.d.mobley I appreciate it! That makes sense now. But my bad, I was meaning the power valve governor gear on the bottom end that connects to the crankshaft primary gear. Finding it difficult to find a video on how to set that gear. But I love the effort you put into your videos they’re very informative, especially that video on the top end

@brian.d.mobley 3 года назад

@@jothamkeller7227 Thank you. This was one of my first videos and it wasn’t great. Content is correct, but it’s too long! I may be doing an entirely new video on the 125 soon. A client wants me to build one for him and I’ll film the process on that motor if he hires me.

@jothamkeller7227 3 года назад

@@brian.d.mobley I understand. Okay sounds great, looking forward to that if it happens.

@brian.d.mobley 3 года назад

@@jothamkeller7227 I hope it does! I know it could help a lot of people! Thanks you so much for watching and commenting!

@alstonasby5883 3 года назад

My 5th gear is like neutral any tips?

@brian.d.mobley 3 года назад

Usually, it’s a bent shift fork. But stuff like that can make you crazy. Broken tooth, pawls issue.... it can be a few things.

@alstonasby5883 3 года назад

@@brian.d.mobley ok I’ll make sure to check it out thanks for the tips and love the vids

@brian.d.mobley 3 года назад

@@alstonasby5883 Thank you! I wish I had a simple answer. Feel free to follow on me on Instagram where you can message me if you get stuck.

@alstonasby5883 3 года назад

@@brian.d.mobley Ok I’ll make sure to!

@kaleb71948 3 года назад

Does anyone know where I can find the electronic power valves for the 2004 cr125? My engine does not have the power valves in it for some reason

@brian.d.mobley 3 года назад

Hi Kaleb. Sorry, I didnt see this comment. The only hope you have is eBay. That entire system (cables, valves, CDI) are all unavailable commercially. I do have a rear cable if you ever find the rest of the stuff.

@kaleb71948 3 года назад

@@brian.d.mobley thank you Brian, it turned out I only needed the cables, I found them off a cr250 and they seem to work fine

@brian.d.mobley 3 года назад

@@kaleb71948 Im a little shocked to read that 250 cables worked. From my understanding, they are not the same length as those on the 125.