73 Honda CB750 Custom Build Part 26 - Carburetor Rebuild

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  • Опубліковано 12 січ 2025

КОМЕНТАРІ • 145

  • @swestleyj60
    @swestleyj60 9 років тому +9

    Mr. Segovis, I just want to thank you for all the time and effort you've put into making these videos. I'm sure you've heard all this before, but I'm fascinated by how knowledgable you are & by how professional your channel is - Outstanding. I'm also sure you've heard this before: You've inspired me to go get my own tired, broken down CB, and I intend to follow your lead and build it back to what it once was.
    You're an inspiration & I've spent hours watching your channel.
    Thank you very much, sir - I hope one day our paths meet and we can talk, as I'd love to thank you in person and shake your hand someday.
    Great job & thank you again...!

  • @damonevens3095
    @damonevens3095 7 років тому

    I just got my grandfather's motorcycle and this video alone has helped me get just that much closer to getting his old bike back on the road

  • @snipereps
    @snipereps 9 років тому +1

    my friend, the o-ring that you cannot find where to put, when you assemble the idle mixture screw, should be in there first of all. Then the tiny spring and then the idle mixture screw. Be careful not to tighten this up because you will harm the tip. You do a very nice job with your videos. Many many thank's from me and my friends here in Hellas!!!

    • @snipereps
      @snipereps 9 років тому

      vak mor OOOOppps!! I just noticed that the idle mixture screw is on the top side of the fuel bowl. What I said before would be true if the idle mixture screw would be on the bottom side of the carb, under the fuel bowl, sorry, this usually happens on more modern carbs.

  • @sterliling
    @sterliling 7 років тому

    I just bought a a 73 cb750 and it have the same carburetor , The last owner told me it’s been sitting for 6 months I have never work on any motorcycle or car ever but just by watching your video of the rebuild I’m thinking of cleaning /rebuilding the carburetors my self

  • @josephcivita1450
    @josephcivita1450 3 роки тому +1

    Usually I only order the bowl gaskets hoses and O-rings. And the needle and seats. I have found that the main Jets and the Jet needles and pilot Jets in the kits a different from what is stock in the carburetors. So I usually just clean up the stock parts and reuse them.

  • @sethalbert1239
    @sethalbert1239 7 років тому

    Definitely the best carb video I've ever seen. Step by step and very clear. Just picked up my old man's 1970 cb750 chopper that's been sitting for 30 years and you make this all that much easier to tackle. Cheers!

  • @clydesight
    @clydesight 9 років тому +1

    I know nothing about bikes and cars - I don't even drive - yet I find this kind of video fascinating! I love to se all the parts and engineering that goes into this, and you explain things very nicely. Thanks for posting!

    • @MrBenHQ
      @MrBenHQ 7 років тому

      you read my mind ! but i kniw about cars,,so..

  • @alanstrathern9317
    @alanstrathern9317 9 років тому

    Been addicted to this series. So glad you painted the worktop. Was finding it hard to focus on parts. Keep up the great work!

  • @themotobarn702
    @themotobarn702 6 років тому

    I have been watching your CB750 build videos for a good while now and absorbing as much information as possible for my build of the exact same bike. You did an absolutely fantastic job documenting everything and actually teaching! Thank you, sir! I'm about to tear down my carbs here shortly and this will come in handy for sure! Great work, my motorcycle loving friend!

  • @gremlin7470
    @gremlin7470 9 років тому

    I've been dreading rebuilding the carbs on my '78 CB750 and feel a lot more confident now. Thanks!

  • @patchrockit
    @patchrockit 9 років тому

    thank you! i have damn near every book on the cb750 except hondamans but i'm glad i found your videos for better hands on viewing of each part before i take my carbs apart for a good cleaning.

  • @rodneykent5383
    @rodneykent5383 8 років тому

    I am about to carry out a full restoration on a CB750 and this series of videos are so helpful and informative.

  • @daveco1270
    @daveco1270 4 роки тому +2

    Thank you!!! I would've spent hours messing with those choke plates if it wasn't for this video. I took my carbs apart and couldn't figure out for the life of me how those things went back into place with that little lever.

  • @richardthorpe3059
    @richardthorpe3059 5 років тому

    Thank you so much. I had no experience with carbs and after viewing you videos a few times I had confidence to do the job. You made it really clear...very much appreciated.

  • @thomaslazore5882
    @thomaslazore5882 7 років тому

    Hey man just wanted to say your videos have helped me a great deal. I've got a 1972 CB 750 this is my first bike ever owned shoot ever ridden as well haha when I got it, it was in bad shape engine wise as well as the electrical system. The old gal still has a bit of work to be done but you keep posting your vids and I'll keep watching and learning so I can finally complete this project of mine thanks

  • @jasonwarwick633
    @jasonwarwick633 7 років тому

    Awesome work! Only problem I ever see with your how to videos is YOU MAKE IT LOOK EASY! That's the mark of a pro's pro. Thx for the great content!

  •  8 років тому

    Hi Dino.
    I want to say you thanks for your vídeos and transmition of knowledge. Because of you I got inspiration, will, disire to do and I start to do. You have change my way to be and to do.
    Thanks a lot.
    Regards from Lisbon/Portugal.

  • @chrislindsey89
    @chrislindsey89 Рік тому

    Thanks for a great video! If it weren't for you, my cb750K carb would still be in 100 pieces in a cardboard box, headed to a mechanic. Thank you again!!!

  • @sticker682
    @sticker682 6 років тому

    I've rebuilt these carbs also. Good video. I had a problem of fuel always dripping out of the vent tube drains! Everything inside was sealed! It turned out the vent tube inside the float bowl was cracked because water got into the carb bowl and froze cracking the tube. We barely noticed it but sure suffered with this for a long time.

  • @evanphi
    @evanphi 9 років тому +1

    once you get the carbs on the rack, you'll want to re-check float heights. Those aftermarket needle jets have stiffer springs than originals, and they will lower your float height, resulting in a more lean mixture (speaking from experience). Check the SOHC4 forum for how to do clear tube method! Since you're running pods, you don't want to be leaned out any more than necessary. I would stick with the 135 mains, as well.

  • @Trevenclaw
    @Trevenclaw 9 років тому

    These motorcycle build vids are so relaxing.

  • @bonaita7690
    @bonaita7690 9 років тому +1

    Mr. Segovis, we miss you, just keep on hackin' man, I love the channel!

  • @plantasehortasnalajehortas271
    @plantasehortasnalajehortas271 5 років тому

    Thank you very much for having shared, all this knowledge, with whom you are interested in reviving and learning a style of pure and competent mechanics, where the human brain will always be the most complete machine of all universe.

  • @jamescosta7772
    @jamescosta7772 9 років тому +1

    This is helping me so much man!! i just bought a cb750 and i love it!!! thanks for the carb tips!

  • @twangsome2499
    @twangsome2499 7 років тому

    Hi Dino, great video. The last thing you did in this episode is tighten the lock nut on the lifting mechanism. You use a flat washer (which comes in the rebuild kit) under the lock nut, but I think that that flat washer should go under the vacuum gauge plug/screw. My K6 has no flat washers under the lock nut but does under the vacuum gauge plugs :)

  • @gsmecanica
    @gsmecanica 9 років тому

    Man these videos are the best, I will probable buy a cb750 one day and follow your guides. Thanks a lot!!!

  • @charliedee9276
    @charliedee9276 3 роки тому

    Subbed, great vid. I am rebuilding the set of carbs from my friends 74' CB750, the same style as shown here. His carbs were also missing the lock washers on the small screws holding the needle/slide pull assembly to the slide. Thanks also for the info on another video on the o-ring size for the fuel feed tee's connecting the carbs.

  • @robertoespinoza1321
    @robertoespinoza1321 9 років тому

    ive watched every video so far in the span of a night great series.

  • @BasicPoke
    @BasicPoke 7 років тому

    Thanks for the video, good job. Maybe you said later but I bet the small o-ring is for the idle mixture screw. And you put the needle on the record.

  • @joeking9933
    @joeking9933 9 років тому +2

    I want to thank you from Pensacola Fl . I am a disabled US Marine and own two CB750k's have been addicted to this series but what happened ? would love to see the bike run . ether way Thank you Sir for all the knowledge you have passed on to me
    Semper Fi

  • @Mekhanic1
    @Mekhanic1 9 років тому +2

    Nice video. I have rebuilt a lot of the CB carbs and sometimes the aftermarket rebuild kits can be problematic. I find it best to reuse the factory needles-the aftermarket units tend to not be made as nice. Also SOAK the carbs in SIMPLE GREEN for a day or too. It will get them looking like new! ;)

  • @HackaweekTV
    @HackaweekTV  9 років тому +3

    • @TheCarablanco
      @TheCarablanco 9 років тому

      HackaweekTV This is so great - I'd like to imagine that this is my old 750 getting a new life. Cheers, and keep on hacking!

  • @jonivanart
    @jonivanart 8 років тому

    Great video for rebuilding the carbs!

  • @roadsterman
    @roadsterman 6 років тому

    A good video basically
    The tube inside the float bowl should be looked at with a magnifying glass
    to see if there is a longitudinal crack in the brass tube it will never run correctly.
    That float bowl overflow tube gets cracked in cold climates when water gets in the float bowl
    the the ice expands and cracks the brass tube.
    You can solder the crack in the brass tube.

  • @pocoapoco2
    @pocoapoco2 9 років тому

    In a bike this old it's a really good idea, even though they are quite hard to come by, to replace the needle jets. I've worked on plenty of bike this old and older and it's almost a given that the needle jets are worn out which makes them run quite rich at low rpm's particularly at idle. The thing is though that the jets are so hard to come by I'm considering investing in a set of precision metric reamers and turning out my own on a lathe. The bore has to be machined to a tolerance of ±.0001 inches.

  • @Orbacron
    @Orbacron 7 років тому

    great informational video, thank you for that. wish i had this information 25 yrs ago..

  • @markslater7735
    @markslater7735 8 років тому

    G8 video and commentary Dino, couldn't be better. As well as the jet needle there is also a needle jet (small brass holed bush - jet) in the kit that is supposed to be installed inside the carb body. there doesn't seam to be much wear on mine but I'm just interested on the best way to remove and replace this at some stage. Couldn't see this particular part in your vid but as there doesn't appear much wear I will not replace for now. Any way keep up the good work Dino, very helpful set of CB750 Videos.

  • @roadsterman
    @roadsterman 6 років тому

    The pilot air screw will also have a washer and O ring. You may have to use a tool to get that O ring out.

  • @feliceferriello
    @feliceferriello 8 років тому +1

    thanks so much from Venezuela. you are a master

  • @brianbowers6913
    @brianbowers6913 9 років тому +1

    another super video...way to go Dean.

  • @renatoaquilino6259
    @renatoaquilino6259 5 років тому

    Amazing video! It helped me a lot! Thank you very much for all the info. Cheers from Brazil!

  • @maicito123
    @maicito123 9 років тому

    yes yes yes yes! finally, Ty dino. Looking for this for a LONG time haha

  • @gcphotdtv
    @gcphotdtv 9 років тому +1

    Looking so forward to the next episode! When will it be ?

  • @MrMadu84
    @MrMadu84 9 років тому

    Mooore vids;) Great work and many thanks! Greetings from Munich, Germany

  • @shortaybrown
    @shortaybrown 9 років тому

    Gotta paint the workbench top white. Makes it easier to see parts.

  • @davec5223
    @davec5223 6 років тому

    At around 18:44 what’s the circular rubber piece to the left of the gasket? Did I miss the part where you used that? These videos have been really helpful.

  • @dsinclairTUBE
    @dsinclairTUBE 9 років тому +1

    Dean - you forgot to cast a spell over each completed carb to elicit the needed magic to make them work. Seems it doesn't matter how clean - how perfect the assembly - you have to reassemble them at least two to three times to get the magic happening if you are a mere mortal. Of course you aren't done yet - ha-ha.

  • @Tony211289
    @Tony211289 9 років тому +1

    When is this project going to come back to life? I don't want to wait any more :/

  • @masonv45
    @masonv45 9 років тому

    After a rebuild, I always check my carbs with water on a piece of cardboard to see if anything leaks. Then just drain the water.

  • @zimba599
    @zimba599 9 років тому +4

    Wuuaaah, ...........when is number 27 coming in this series??? It's been 4 month since the last one and I miss theme!

  • @MrYousuft
    @MrYousuft 9 років тому

    Nice video with loads of information... just to point out this should be Part 26 as Part 25 was Engine Install on May 16.

    • @DeanSegovis
      @DeanSegovis 9 років тому +1

      Yousuf Tawakkal Good catch and corrected. I get a bit lost sometimes. :)

  • @andrewt199
    @andrewt199 9 років тому +1

    cant wait to see another episode of the CB! You have inspired me to try my own cafe project.

  • @TysonClancy-Jones
    @TysonClancy-Jones 9 років тому

    Dejavu on the needles ha ha
    Love the video, its a big help!

    • @DeanSegovis
      @DeanSegovis 9 років тому +1

      datsfullysik OOPS! :)

    • @cdigames
      @cdigames 9 років тому

      ***** I loved the re-hash of it though, your style has progressed since the last bike and I felt like I learned it all better :)

  • @RocanMotor
    @RocanMotor 5 років тому +1

    You should really use a hollow ground flat head screwdriver on brass jets- They wont cam out and damage the jet. Honestly- I use them on all flathead fasteners and would never go back to standard flathead drivers.

  • @dylanheadrick3789
    @dylanheadrick3789 9 років тому

    With the pod air filters, will you have to reject those carbs with larger main jets since I would assume the pods would increase airflow?

  • @imjustjim4030
    @imjustjim4030 10 місяців тому

    Awsome video - as noted, gives me great hope. I have disassembled my '72 carbs and cleaned them up - literally scraping the bowl gasket out piece by piece in each. The questions are, one drain is broken off at the bottom of the bow, so a hose cannot attach - any suggestions? I've tried tapping and twisting - heat next? Also, the rebuild kits i ordered have a needle (silver color) that's a full mm shorter than what came out (brass) - stick with the old needle? Return the kits? The gskets and other pieces seem right (POSEAGLE 4 PACK Carburetor Carb Repair Rebuild Kit).
    PS - big Sierra fan myself so that was a comforting touch (about midway through a fleeting glimpse)!

    • @HackaweekTV
      @HackaweekTV  10 місяців тому

      If you can tune them with those needles you're fine.

  • @roadsterman
    @roadsterman 6 років тому

    If you use those aftermarket air filters you will need to use #42 idle jets.
    Any other choice will not work. I have tested this extensively.

  • @twangsome2499
    @twangsome2499 9 років тому

    I'm loving this series. But how can I tell when, where and how to find the next episode please?

    • @HackaweekTV
      @HackaweekTV  9 років тому +2

      Twangsome In a few weeks. I'm taking a break.

    • @twangsome2499
      @twangsome2499 9 років тому

      HackaweekTV
      OK, and a well deserved break I'm sure :). However, what I actually meant was, within UA-cam how can I search for and navigate to the very latest episode, even if I don't know the episode number? Thanks again.

    • @amosgottardi103
      @amosgottardi103 9 років тому

      Twangsome I think you can just go to the channel and see the uploads, you can sort them out by date, I'm really looking forward for the next one!

    • @farqas
      @farqas 9 років тому

      Twangsome Go to the channel -> Playlists -> Motorcycles -> scroll down to the bottom and there you should find the latest episode. Some channels sort the newest videos in a playlist to the top and others to the bottom. Dean seem to do the latter :)

  • @RJL1000
    @RJL1000 9 років тому +1

    Excellent stuff, Dino - as always. Just thought I would comment regarding the video orientation. I actually found this one a little hard to watch as it's upside down. If you film more of these overhead videos could you try rotating the footage so that your hands are at the bottom and we can look at what you're doing from closer to your point of view? Most editing software should be able to flip it if the camera mount can't be changed. It would also help when you are explaining the orientation of things as left and right, etc. Can't wait to see you fire up the CB soon. Thanks a lot!

    • @HackaweekTV
      @HackaweekTV  9 років тому +1

      ***** Agree. I didn't like it either.

    • @need243some
      @need243some 9 років тому

      HackaweekTV It's been 1 month since last video..Dino pleasee

  • @arkangel13th
    @arkangel13th 9 років тому

    By the way,you said how great was my FJ1100,how about having a FJ1100 and a FJ1200?Yep,I got the 1200 for 100$,engine running and even the exhaust system is great!

  • @zardportugal
    @zardportugal 9 років тому

    Again, great work.
    Congrats.

  • @McCtiller
    @McCtiller 9 років тому

    are your still working on your motorcycle? haven't seen a video in a long time I loved seeing it getting built and hope it's still going good.

  • @karinbarclay-miller6747
    @karinbarclay-miller6747 8 років тому

    great videos Dino-inspired me to do my own
    geez you got a great deal on that bike/prts man
    glad weve gone off raw concrete floors onto wooden bench-made me flinch!
    im in sweden-whats the name of that aerosol parts cleaner? Im gonna iorder some
    thanks

  • @Spoif
    @Spoif 9 років тому +6

    You haven't installed the tri-axial bilge compensator required for proper tintinnabulation suppression detection in the planar sump combobulator.

    • @DeanSegovis
      @DeanSegovis 9 років тому +9

      ***** I compensated by installing a lateral flangastat tabulator.

  • @brenguy333
    @brenguy333 9 років тому

    Thank you for the video. VERY helpful!

  • @charliedee9276
    @charliedee9276 3 роки тому

    Now I have a question. On the set I am working it appears someone took a small round file to the pivot pin area of the float for some kind of clearance. It is done to all four and is for sure intentional. Is this some kind of hot rod trick for these that you know of?

  • @MOTOdrONEGuy
    @MOTOdrONEGuy 8 років тому

    Did you need special jets because of the Air Pod filters?

  • @samueljlarson
    @samueljlarson 9 років тому +2

    From this camera angle, Dean's voice sounds a lot like Jeff Goldblum's.

  • @locustltz400
    @locustltz400 9 років тому

    Hey Dino, I have a 81 cb750c I think it has 120 main jets and its running lean with pods. Im thinking about getting the orignal airbox and trying ti out with the bigger jets, you think i'll be fine or shoud i just order the original 102 and 68.

  • @Fezzler61
    @Fezzler61 8 років тому

    Are the bigger jets due to the aftermarket air filters?

  • @katrinasaligumba2822
    @katrinasaligumba2822 8 років тому

    Hi! What size main jet did you end up using? It seemed that you used the new one. Awesome video. Thanks!

    • @wwsummers
      @wwsummers 6 років тому +1

      katrina saligumba I wanted to know too. First he said kit came with 110 main jets, then after he said the carbs had 135's he then said kits had 100's and he indicated he was probably going to keep the 135's, but it looks like he used the new ones. My 72 K2 came with 120's. I ordered rebuild kits that are coming with the 110's, but plan to keep the 120's. The pod air filters shouldn't require changing mains (similar vacuum restriction as stock), but if velocity stacks and aftermarket exhaust are used, needle clip should be lowered a notch and bigger mains.

  • @henrryvilleta9136
    @henrryvilleta9136 6 років тому

    Hello, i just bought a honda cb750 1981, i toke it to my local mechanic a carburetor cleaning, he told me that i have to replaced the carburetor. I did some research, and all i found was carburetor rebuild no replaced. I need recommendations, because i not so sure about the replaced.

  • @rickyrapeseed2041
    @rickyrapeseed2041 9 років тому

    dude! how many videos left on this build you guess? lvoe the stuff

  • @Mark-sq8mh
    @Mark-sq8mh 7 років тому

    Hi. why you chenged also needes and jets that were still good? thanks.

  • @hezriehezrie8411
    @hezriehezrie8411 9 років тому

    thank you very much for sharing that knowledge

  • @ivogiev
    @ivogiev 9 років тому +1

    Hey, why is episode 27 taking so long? Hope everything is OK and we will see a finished project here.

  • @coreyf311
    @coreyf311 8 років тому

    where did you source the choke linkage rods??? I cant find them anywhere.

  • @docstruthers
    @docstruthers 6 років тому

    I am about to rebuild my CB750 carburetors. Do you suggest any particular brand of rebuild kit? The fuel leaks out of them all it looks like from different locations also

  • @trigg99
    @trigg99 9 років тому +2

    its coming along now from a box of parts

  • @stephenward8550
    @stephenward8550 9 років тому

    Also, swap all ya bowls around so that the drain screws are facing outwards.

    • @DeanSegovis
      @DeanSegovis 9 років тому

      stephen ward Thanks... DONE! :)

  • @beardwrench
    @beardwrench 9 років тому

    where did you get the rebuild kits from? what brand carb rebuild kits were those?

  • @bioshock3izepic
    @bioshock3izepic 9 років тому

    I'm rebuilding my 76 super sport but I have ran into a dilemma I need a new transmission and lots of parts that are obsolete if you know where I could start looking your guidance would be greatly appreciated!!!

  • @PressureEd
    @PressureEd 8 років тому

    so funny because i have tons of those gelato jars filled with parts too!

  • @jimgardner2412
    @jimgardner2412 9 років тому +1

    When are you getting back to the CB?

  • @anthonyhernandez99
    @anthonyhernandez99 8 років тому

    I could've swore they were supposed to be set to 19mm for the float height.
    Do you happen to know when they changed to 26mm? Or am I just crazy?

  • @007mercucio
    @007mercucio 6 років тому

    37:15 beggars can't be choosers, but I was hoping you would be showing the needle setting aspect of this. :-\ Especially also: I have had trouble getting those screws out... they are HARD to get to, for me, at least...

  • @jamiestanley8774
    @jamiestanley8774 7 місяців тому

    How long should the breather hoses at the top of carbs. 2 of .

  • @praneethmarasinghe7342
    @praneethmarasinghe7342 8 років тому

    i have a 1983 Honda Hawk 250cc bike recently bought from first owner, so let me know how to pick up engine furthermore..

  • @stephenward8550
    @stephenward8550 9 років тому

    Did you happen to check if the floats are airtight?

  • @MonteSBC400
    @MonteSBC400 9 років тому

    Wow, that is why I subscribed. Excellent!!!!

  • @StanleyKubick1
    @StanleyKubick1 9 років тому

    I've watched all the CB750 videos multiple times. I'm assuming you're on vacation or some other dumb excuse and just wanted to let you know THAT I DON'T CARE, POST MORE VIDS! :P (jk, enjoy whatever it is that you're doing)

  • @etwice5951
    @etwice5951 9 років тому +1

    Liked your vids man! i just recently bought and got started working on a 1992 cb750 nighthawk. Is this the last vid you've posted on yours?

  • @jrb5353
    @jrb5353 4 роки тому

    Thank you very, very..........very much.

  • @silvanoibarra3066
    @silvanoibarra3066 9 років тому

    we miss you :( need new videos jajaja

  • @fw1421
    @fw1421 7 років тому

    Is there a cleaner that will remove the oxidation on the outside to make them look new?

    • @robertbrandywine
      @robertbrandywine 7 років тому

      I believe in other videos they use a 50% Pine Sol and 50% water mixture and let sit overnight.

  • @1968aceman
    @1968aceman 9 років тому

    who made the torch in the video

  • @jonivanart
    @jonivanart 8 років тому

    Can you put in a link for the manual thats $75- $100?

  • @mickmath
    @mickmath 8 років тому

    Dean - What service manual do you recommend for the cb750k8?

  • @PerspectiveRod
    @PerspectiveRod 7 років тому

    thank you much, for this video......

  • @ian_morg
    @ian_morg 9 років тому +3

    when's the next episode? are you having a long vacation? hope everything's ok.