Oh man! Thanks Ben! My main reason for hosting this channel is the desire to help others - just like you - who may not know how to do procedures on mechanical things but could if given a little visual explanation. So glad it helped you! Thanks for taking the time to post the good vibes!
Hey Vince. Thank you for you kind comment. I try really hard to do better every time. Its not easy to make a video, believe me! But, knowing that my experience and knowledge might be helping a younger generation of DIY enthusiasts is very rewarding.
This is an interesting video. I've seen a few others where they started in the head. I don't know if those engines were in rough shape like yours though. Good work!
Thanks Chumps. The order I follow is the order the service manual recommends, but I’m sure starting with the head is fine too! Thanks for commenting and watching!
Hey Teddy. Good point. The transmission is a bit different though, as I recall. …Probably won’t affect how the teardown process is presented, however. Thanks for watching and commenting.
This video is so helpful i’m currently rebuilding an 02 xr70r and it has been a part in my garage for nearly 2 years sitting on a table because my dad would not let me rebuild it so I’m missing a little bit of hardware that probably got knocked off the table or is missing when will you be uploading a video of the build? When you do please show all the bolts because the service manual is for an earlier year and somethings do not match my bike
HI Seth! I WILL be doing an assembly video but its coming in stages. I have to film several videos on specific assembly procedures (How to Rebuild the Transmission. How To Adjust Valves...) for the project sponsor, TBoltUSA. So, there will be some detailed instructions, but it may not be posted quickly. Do you have a service manual for the bike? If not, it will help a lot. I can email one to you if you dont have it.
I have the service manual online downloaded most of the diagrams are the same but I think they are from the 97-99 bikes because I notice some minor differences what year is this crf/xr I noticed it has the 72cm2 on the jug and the engine is identical to mine besides it showing all the abuse it’s taken mine was in great shape besides the 36t counter shaft gear having a cracked tooth along with needing some bearings and seals I hope to see this come sooner than later and really hope to see your videos blow up with views
Great video, very helpful. Just one thing, did you simply use the adjustable wrench directly to the oil pump sprocket shaft? No adapter or other tool? Thanks
HI Rob! The short answer is, "yes." The long answer is; people who talk bad about the crescent wrench are un-American! Its the most useful tool ever invented!
Gday Brian. I have a 1975 ct70. The barrel, head and piston set, available on ebay (for the CRF70 though). Would that bolt on mine? Or is it too far between manufacture dates and mechanical has changed?? Cheers in advance. MrFall.
Hey Mr. Fall. I try to stay out of confirming fitment of crossover parts these days. Id hate to find out that, due to some small variation in parts, that I gave incorrect advice. That said, I would not buy anything for my CT70 that was not OEM Honda. There are TONS of those top end parts out there and the prices are not crazy. On Facebook, there are several CT enthusiasts groups that I have found to be very helpful. So, I know I didn’t answer your question exactly, but this is my recommendation.
@@brian.d.mobley Thats ok Brian. I am just being lazy. Haven't pulled the head off yet. Could even be an easy fix (I hope). Just thought I'd see if (worst case), I could get a bolt-on. Thanks for the Speeedy reply. Take Care n RSOT >:)
Brian, Could you recommend a vapor blaster system without breaking the bank. I use medium glass Bead which works but looking to switch to vapor. Awesome Videos. Thanks.
Hey Silk! I wish I could. Id own my own if there was an affordable model. I have seen some UA-cam’s crested by people who make their own, but I’m not sure how well they work. You can make you own, apparently and however, and save a lot of money.
Brian, there is a bolt hole above top right of the case numbers. I had oil coming out of there when trying to start a project crf70. Any answers as to why would be greatly appreciated 🙂
@@brian.d.mobley I would, I may have figured it out. From what I've seen online, if you put the long bolt in that hole, it'll push through the case causing a leak. I've heard yamabond on a bolt or thread tape will stop the leak
@@anthonyflores9609 OK, if that doesnt work, let me know. Just FYI, its not easy to figure out a lot of these problems unless the motor is sitting in front of me, but Ill try if you get stuck
Hi James. No. In fact, the woodruff keys are usually wedged into the crank pretty tightly. If you aren't replacing the crank, I would just leave the key in place and put the entire crank into a big ziploc so you dont lose track of the key.
@@brian.d.mobley my cam chain has a nasty slap when flywheel rotates in one spot think it's the tensioner wheel missing teeth I'm new to this. It remains tight till hit hits a certain point then slap lose chain hitting metal. I already pulled top end had no choice to do this.
@@jamesobrien6855 There are only a few reasons why this would occur and all of them are bad. Bent crank end, fastener on the cam sprocket broken/bent, chain link seized, ... other things. Its not good, thats for sure. You need to figure it out before you try to run the motor again, thats for sure.
@@brian.d.mobley so it's the sprocket cam chain guide 25T part number 11 on motorsport website it's a 2001 xr70r. Don't worry I won't run it although it was running but literally a ticking time bomb. I'm doomed on this bike. I will probably part out I just need $1000 to get money back.
I have a Chinese knockoff of a Honda XR50. How much of these techniques and parts are the same? I just subscribed to your channel. I'm a retired USAF vet, and I'm thinking about taking up pit restoration as a hobby. Looking forward to learning a new skill from you.
Hi Bart. I am sorry to state that I am totally unfamiliar with the Chinese version(s) of the XR50. So, I cant really comment intelligently about the compatibility or similarity of the Chinese bikes relative to the original Hondas. As for restorations, its a lot of fun! If you work on Hondas, you can even make a profit if you become known as a skilled restorer. Thanks for your service to our great country too!! My dad was a major and we liked at Shepard AFB when I was in first and second grade. Great memories!
Thanks for your quick reply. The Little Chinese bike is a good runner, and only needs bolt on parts, so I think I'm good. But, after this bike is "restored," it will be the real deal from here on out. Thank your dad for his service as well.
Hi NoFun. Im so sorry but I dont recall. I have that motor all assembled now so I cant go back and check it. Im sure if you called a parts supplier, they could tell you.
@@nofunfilms8755 Sorry. I understood your original question as a request for the nut size, not the type of tool used. In the description there is a link for the tool, but here it is: amzn.to/3oDVt9t
thank you Brian! you helped me so much with my engine with this video , couldn't have done it without you
Oh man! Thanks Ben! My main reason for hosting this channel is the desire to help others - just like you - who may not know how to do procedures on mechanical things but could if given a little visual explanation. So glad it helped you! Thanks for taking the time to post the good vibes!
Great job. Thanks you for taking the time to show this process so clearly.
Hi KG! Glad you liked it! Thanks for watching!
Cool Video and gives a good run down of what is inside these simple yet complex little engines.
Thanks Ethan!
39 likes and no dislikes!! People who found these videos are really impressed!
Hey Vince. Thank you for you kind comment. I try really hard to do better every time. Its not easy to make a video, believe me! But, knowing that my experience and knowledge might be helping a younger generation of DIY enthusiasts is very rewarding.
This is an interesting video. I've seen a few others where they started in the head. I don't know if those engines were in rough shape like yours though. Good work!
Thanks Chumps. The order I follow is the order the service manual recommends, but I’m sure starting with the head is fine too! Thanks for commenting and watching!
Nice work Brian , looks killer 😎
Hey Metro Moto! Thanks! Stayed tuned for a lot more on this bike!
Very helpful thanks for making this video !
Hey Redline! Im glad you found it useful! More coming! Thanks for watching!
Very nice job !!
@TBolt_USA THANK YOU!! Lots more to come! Thanks for watching.
Great work. And dont forget the ATC 70!
Hey Teddy. Good point. The transmission is a bit different though, as I recall. …Probably won’t affect how the teardown process is presented, however. Thanks for watching and commenting.
Brian D. Mobley wonderfully helpful videos. Thank you for the posts. My youtube mechanic status aint too bad with your help hahaha.
@@teddyrascal6305 Thanks Teddy! Keep wrenchin’!
I needed this exact video. Thank you thank you THANK YOU.
Hey Gawd. I’m so glad it helped! I have a reassembly video for that motor also for when you get ready to put it back together. Thanks for watching!
@@brian.d.mobley yes, I scanned through a few. I'll subscribe as well.
This video is so helpful i’m currently rebuilding an 02 xr70r and it has been a part in my garage for nearly 2 years sitting on a table because my dad would not let me rebuild it so I’m missing a little bit of hardware that probably got knocked off the table or is missing when will you be uploading a video of the build? When you do please show all the bolts because the service manual is for an earlier year and somethings do not match my bike
HI Seth! I WILL be doing an assembly video but its coming in stages. I have to film several videos on specific assembly procedures (How to Rebuild the Transmission. How To Adjust Valves...) for the project sponsor, TBoltUSA. So, there will be some detailed instructions, but it may not be posted quickly. Do you have a service manual for the bike? If not, it will help a lot. I can email one to you if you dont have it.
I have the service manual online downloaded most of the diagrams are the same but I think they are from the 97-99 bikes because I notice some minor differences what year is this crf/xr I noticed it has the 72cm2 on the jug and the engine is identical to mine besides it showing all the abuse it’s taken mine was in great shape besides the 36t counter shaft gear having a cracked tooth along with needing some bearings and seals I hope to see this come sooner than later and really hope to see your videos blow up with views
You did great job on that👍🤘🏻
Thanks! Wait til you see the assembled engine! It will blow your mind!
Great video, very helpful. Just one thing, did you simply use the adjustable wrench directly to the oil pump sprocket shaft? No adapter or other tool? Thanks
HI Rob! The short answer is, "yes." The long answer is; people who talk bad about the crescent wrench are un-American! Its the most useful tool ever invented!
@@brian.d.mobley Thanks for the quick reply. I agree, they have many uses. I ended up using the tip of medium sized pry bar to loosen it off.
@@Firestick420 Good idea! Sometimes you have to resourceful doing mechanics.
Gday Brian.
I have a 1975 ct70. The barrel, head and piston set, available on ebay (for the CRF70 though).
Would that bolt on mine?
Or is it too far between manufacture dates and mechanical has changed??
Cheers in advance.
MrFall.
Hey Mr. Fall. I try to stay out of confirming fitment of crossover parts these days. Id hate to find out that, due to some small variation in parts, that I gave incorrect advice. That said, I would not buy anything for my CT70 that was not OEM Honda. There are TONS of those top end parts out there and the prices are not crazy. On Facebook, there are several CT enthusiasts groups that I have found to be very helpful. So, I know I didn’t answer your question exactly, but this is my recommendation.
@@brian.d.mobley Thats ok Brian.
I am just being lazy. Haven't pulled the head off yet. Could even be an easy fix (I hope).
Just thought I'd see if (worst case), I could get a bolt-on.
Thanks for the Speeedy reply.
Take Care n RSOT >:)
PLEASE DO A CR 85 CRANK SEAL REPLACEMENT ON THE CLUTCH SIDE
Brian, Could you recommend a vapor blaster system without breaking the bank. I use medium glass Bead which works but looking to switch to vapor. Awesome Videos.
Thanks.
Hey Silk! I wish I could. Id own my own if there was an affordable model. I have seen some UA-cam’s crested by people who make their own, but I’m not sure how well they work. You can make you own, apparently and however, and save a lot of money.
Do you have a video of the rebuild of this same motor would be super helpful if so!!!
ua-cam.com/video/rSZ4Rj1HJbY/v-deo.html
love the video, subscribed
Hi Burly! I’m glad you got something out of that vid! That motor was the nastiest thing I’ve ever worked on. Thanks for watching and subscribing!
Brian, there is a bolt hole above top right of the case numbers. I had oil coming out of there when trying to start a project crf70. Any answers as to why would be greatly appreciated 🙂
Hey Anthony. I’m not sure what bolt you mean, exactly. Would you like to email some pics to me?
@@brian.d.mobley I would, I may have figured it out. From what I've seen online, if you put the long bolt in that hole, it'll push through the case causing a leak. I've heard yamabond on a bolt or thread tape will stop the leak
@@anthonyflores9609 OK, if that doesnt work, let me know. Just FYI, its not easy to figure out a lot of these problems unless the motor is sitting in front of me, but Ill try if you get stuck
@@brian.d.mobley thank you so much 🙏
Thanks for this video. Do you have to remove the woodruff key to remove stator thanks.
Hi James. No. In fact, the woodruff keys are usually wedged into the crank pretty tightly. If you aren't replacing the crank, I would just leave the key in place and put the entire crank into a big ziploc so you dont lose track of the key.
@@brian.d.mobley thanks stator base and stator are stuck working on trying to get the two Philips screws out the stator base now
@@brian.d.mobley my cam chain has a nasty slap when flywheel rotates in one spot think it's the tensioner wheel missing teeth I'm new to this. It remains tight till hit hits a certain point then slap lose chain hitting metal. I already pulled top end had no choice to do this.
@@jamesobrien6855 There are only a few reasons why this would occur and all of them are bad. Bent crank end, fastener on the cam sprocket broken/bent, chain link seized, ... other things. Its not good, thats for sure. You need to figure it out before you try to run the motor again, thats for sure.
@@brian.d.mobley so it's the sprocket cam chain guide 25T part number 11 on motorsport website it's a 2001 xr70r. Don't worry I won't run it although it was running but literally a ticking time bomb. I'm doomed on this bike. I will probably part out I just need $1000 to get money back.
I have a Chinese knockoff of a Honda XR50. How much of these techniques and parts are the same? I just subscribed to your channel. I'm a retired USAF vet, and I'm thinking about taking up pit restoration as a hobby. Looking forward to learning a new skill from you.
Hi Bart. I am sorry to state that I am totally unfamiliar with the Chinese version(s) of the XR50. So, I cant really comment intelligently about the compatibility or similarity of the Chinese bikes relative to the original Hondas. As for restorations, its a lot of fun! If you work on Hondas, you can even make a profit if you become known as a skilled restorer. Thanks for your service to our great country too!! My dad was a major and we liked at Shepard AFB when I was in first and second grade. Great memories!
Thanks for your quick reply. The Little Chinese bike is a good runner, and only needs bolt on parts, so I think I'm good. But, after this bike is "restored," it will be the real deal from here on out. Thank your dad for his service as well.
@@bartgoins1782 Thanks Bart! Keep wrenching!
Such a big difference.😀woow
It was a real hunk of crap, that’s for sure!
What size is the clutch locknut bolt? Looking to buy the tool
Hi NoFun. Im so sorry but I dont recall. I have that motor all assembled now so I cant go back and check it. Im sure if you called a parts supplier, they could tell you.
Is your tool the double sided tool 20mm and 24 mm
@@nofunfilms8755 Sorry. I understood your original question as a request for the nut size, not the type of tool used. In the description there is a link for the tool, but here it is: amzn.to/3oDVt9t
How do you get those rusty studs out of the block?
Essentially, it’s opposite of what I cover in this clip regarding the stud installation procedure: ua-cam.com/video/vkCn1m0Zjb4/v-deo.html