Yamaha GT80 GT1 Top end assembly

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  • Опубліковано 9 лют 2025
  • In this video I build the top end on the Yamaha GT-1, I check the piston and cylinder clearance, check the points, and assemble the magneto.

КОМЕНТАРІ • 97

  • @jamesws3
    @jamesws3 Місяць тому

    Great video! The new camera works great. Really enjoying all your work on this little bike. Brings back a lot of memories.

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому

      This is a cool little bike, I am enjoying the work on this bike. Soon to be running again.

  • @retromechanicalengineer
    @retromechanicalengineer Місяць тому +1

    I love the jazzy new camera Dale. Crystal clear and great close ups. Whomever told you that you would harden copper by annealing is getting mixed up. Ferrous metals harden due to the formation of martensite. You are doing it right.
    Best wishes, Dean.

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому

      Thanks Dean, I think some more time with the camera will garner better results. Yes, I know, I have been doing this way for years, you can for sure feel the difference. Some folks are too far out on the north 40.

  • @vincentricher9038
    @vincentricher9038 Місяць тому +1

    Yes that camera is a game changer Dale fantastic closeup.
    Just on the flywheel wick I've always been taught to use a bit of petroleum jelly

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому

      Thanks Vincent, I am still learning, so I hope it will improve more yet. Yes, I think petroleum jelly would work just fine. The Bendix lube I use is made exclusively for point wicks, although it was made for that in the 60's. So, I am sure there is better stuff available now. I was just hoping to use it all up before I kick the bucket. LOL

  • @LarryJohnson-tc7xc
    @LarryJohnson-tc7xc Місяць тому +1

    Hey Dale, it's your 2-stroke friend from Winston Salem NC. All the professional work, looking good from here.

  • @DanteJacobson-vg3br
    @DanteJacobson-vg3br Місяць тому

    New camera looks great. Love your attention to detail, good catch on rust on the flywheel.

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому

      Thank you, Dante, this project is moving along at a good pace. Be up and running very soon.

  • @Brian12227
    @Brian12227 Місяць тому +1

    Hello Dale It’s lovely to see you in the shop again you look like a new man all refreshed. Great job, I really like the new camera I think it will make your channel much better. It’s nice and clear and better to see what you’re doing and I really like the close up shots. I brought myself a set of JIS screwdrivers and a set of long reach JIS impact driver bit. They really do work much better on them Japanese screws. See you on the next video Dale take care Brian.

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому +1

      Thanks Brian, I appreciate the feedback, I am sure with some more learning of functions and how to use them I will be able to improve some more. You are going to love the JIS drivers.

  • @josephsawicki9335
    @josephsawicki9335 Місяць тому

    I love how clean and neat you work very professional.

  • @KH102695
    @KH102695 Місяць тому +1

    Dale, the new camera is great.

  • @toddtonis
    @toddtonis Місяць тому

    Hi Dale the new camera close-up views are excellent. It doesn't seem to hunt on the focus. Good purchase.

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому

      Thanks Todd, I'm still learning, trying to find the right adjustments.

  • @chrisbenn8691
    @chrisbenn8691 Місяць тому +3

    Regarding annealing, steel will get harder after heating and quenching, not copper. The opposite is true. Some people need some more learning. And I've been waiting for this video too to apply your tips toward my YZ80 build.

  • @azlandpilotcar4450
    @azlandpilotcar4450 Місяць тому +1

    Audio is great, don't change anything with it. View looks better lit, much brighter. Closeups much better definition.

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому

      Hey Dave, yes, the audio is good if I remember to put on and turn on the transmitter. Learning more every day, hope to get the focus to work quicker for those close-up shots.

  • @oldguysoldbikes
    @oldguysoldbikes Місяць тому +1

    BTW lovin' the close-ups with your new camera.

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому

      Thanks Jack, so far, I like the camera, got a black Friday deal on it on Amazon. I really don't know anything about cameras, so I watch a lot of reviews and such on UA-cam. They also have a lot of functions that I don't think I will ever use.

  • @peteetwell826
    @peteetwell826 Місяць тому

    The new camera works really well and your editing is spot on! Another great top end assembly with a lot of great tips included. Keep them coming!

  • @ISEEORBS
    @ISEEORBS Місяць тому

    I have a Yamaha GT 80. First motorcycle I ever rode. 44 years ago! Same motorcycle! Lol

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому

      Awesome, they are fine bikes, you still, have it? That's amazing.

  • @frankdillon6127
    @frankdillon6127 Місяць тому +2

    best DIY penetrating oil i have found is 50-50 auto trans oil and acetone.

  • @mikelauer8352
    @mikelauer8352 Місяць тому +1

    New camera works Great for the close ups Dale 👍

  • @steveh7823
    @steveh7823 Місяць тому +1

    New camera is a winner on close ups, greater depth of field, more accurate focus. A full UHD image and much more accurate colour.

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому

      Thanks Steve, I see a few things to try and tweak, I think some time to learn will be helpful.

  • @tommontague5721
    @tommontague5721 Місяць тому +2

    Another good video.....Thanks Dale

  • @ShawnBaker-xx3gz
    @ShawnBaker-xx3gz Місяць тому

    Your video content was always great, this new camera is just a step further in Quality for shure" Sony the one and only" always look forward to your next video and realy enjoy seeing the small CC bikes getting some love. I have rebuilt a few Suzuki 50, 75, 80, 90, and 125s..TM,TC,TS,RM..thru the years.
    Merry Christmas and Happy new year Dale.

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому

      Thanks Shawn, I'm learning more everyday about the camera, I think it is indeed better than the GoPro. I agree about the small bikes; I have a soft spot for them. I guess because that's where I started. Merry Christmas to you folks too.

  • @davidleland8729
    @davidleland8729 Місяць тому

    Looking forward to hearing that beauty fire up. I can imagine the owner will be really grateful for your efforts. I'm still fabricating replicas of the 76 RM 370b swingarm with the torque plates and forks as upgrades for my projects. Can't seem to find anymore on the internet. The 185 and 125 are finally finished.

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому +1

      Thanks Dave, me too, ready to hear this little guy. I guess I'm not familiar with the torque plates on the swingarms. Are you referring to the aluminum swing arms of the later models, those started in 1978 on the 250 C2 models. Nice to see you having some fun with these old bikes. I enjoy them a lot, lots of fun.

    • @davidleland8729
      @davidleland8729 Місяць тому

      @@montana2strokeracer I am welding on the torque plates to the top Andy bottom of the swingarms just like I did for the 71 TS250 and TS400. I got that idea after watching your video when you put that C2 swingarm on your modified Yamaha MX bike. It eliminates flexing same as the installation of the additional gussets to the frame. I have made similar upgrades on the 125s and 185s. There were big improvements in the ride and handling on all of the projects including the 74 TM125, 185MX, TM250 and TM400. Also made the same upgrades on the 71 TM250 and TM400.

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому

      Oh OK, I understand now. Dave you are kind of motorcycle poor these days. Maybe you should be on the lookout for another bike soon. Just can't run out of projects you know. LOL

    • @davidleland8729
      @davidleland8729 Місяць тому

      ​@@montana2strokeracerI have some 74 and 75 model enduro barn finds in the shed from my last road trip.

    • @davidleland8729
      @davidleland8729 Місяць тому

      ​@@montana2strokeracerI have some barn finds in my shed from my last road trip.

  • @frankdillon6127
    @frankdillon6127 Місяць тому +1

    looks good so far!

  • @ninjasfanfunnystuff9026
    @ninjasfanfunnystuff9026 Місяць тому +1

    Clarity is great!

  • @frankdillon6127
    @frankdillon6127 Місяць тому +1

    camera focus is good especially in the center where the subject is. Dale like many big time youtubers the quality of the finished product get better with money and experience.

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому

      Thanks Frank, yes you are right, sometimes you just have to upgrade. Can't believe I have worn out a GoPro in 4 years.

  • @markaddy53
    @markaddy53 Місяць тому +1

    great job dale step nearer camera seems pretty good no hiccups that i saw nextvideo please

  • @oldguysoldbikes
    @oldguysoldbikes Місяць тому +3

    Yesterday I shot an about 2 hours on my $249 Chinese VLOG camera. It has some nice features, but a couple weeks ago it quit recording sound. I did a factory reset and it came back. This time all 2 hours were without sound and the factory reset didn't make any difference. So this morning I was looking at the very camera you have purchased. I looked at it before I bought the piece of junk I have now, but it was too expensive. You'd think after being around for 81 years I would have learned that sometimes you may NOT EVEN get what you pay for when you buy cheap stuff.

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому

      Jack that sucks to lose footage or audio like that, I have done it also, in most cases you just can't make it up. Man, I have done that and still continue to try the cheaper things like that, even knowing it will bite me in the butt, I still do it. You might try a new and a good brand, correct size SD card, I have had success at times fixing my problems by grabbing a new card.

    • @oldguysoldbikes
      @oldguysoldbikes Місяць тому

      @@montana2strokeracer Thanks Dale. I tried a new San Disk Ultra Plus and still no sound. I've got an older Canon that does a decent job but no 4K and no external microphone, but it does do better than the Go Pros with close ups. Now if I can just remember to keep my body parts out of the way of the camera when working, lol.

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому

      Well, I guess it was worth a try. I really don't know that much about cameras, so I am no authority. But I just try stuff like that when I have a problem. I don't film in 4k, on my GoPro I use 1080 and on this new one I am using 1280. I just don't see that it makes much difference except the battery last longer and the SD card doesn't fill up so quick on 1080/1280.

  • @sidecarbod1441
    @sidecarbod1441 Місяць тому +1

    7:58 With copper you can leave it to cool slowly OR drop it in water, either way will anneal it, ferrous metals will go hard if you quench them, copper obviously not being a ferrous metal.

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому +1

      Thank you, sir, I just have never had a problem doing it like this. The last video I annealed a gasket in, a guy said I was making it harder. Thats sure not what I feel when I anneal them.

  • @Free_Ranger_CT110
    @Free_Ranger_CT110 Місяць тому

    Dale you're right about annealing copper. In fact you can quench it or let it air cool, only difference is the time you have to wait. Nay sayers are confusing it with heat treating carbon steel. Hardening & tempering using water or oil. etc etc.

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому

      Thanks Darren, yes there are some folks out there that just shouldn't open their mouth about things they really don't know about. I don't know all the molecule stuff, but I know the way I do it works and has for 50 years plus. I do on occasion do some harding and tempering also. Usually use the oil quench technique.

    • @Free_Ranger_CT110
      @Free_Ranger_CT110 Місяць тому

      @@montana2strokeracer as an apprentice we learned about it, perlite to martensite I think it was, a long time ago now. Can't remember the exact details. Quenching at 'straw' colour for chisel tips if I recall correctly.

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому +1

      Hey Darren, I know almost nothing about it, I have an app on my phone that tells me all I need to know. But annealing copper I have done for years. Nothing to it. I harden steel parts from time to time too, but I just look it up. No room in my brain for that kind of stuff.

    • @Free_Ranger_CT110
      @Free_Ranger_CT110 Місяць тому

      @@montana2strokeracer I remember stuff from 40 years ago, but ask me what I did yesterday & it's a struggle!

  • @cliffmiller2352
    @cliffmiller2352 Місяць тому

    New camera is great.

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому

      Thanks Cliff, I am still trying to figure out all the buttons. I do wish they made them simpler to use.

  • @cainbeeping8480
    @cainbeeping8480 Місяць тому

    The camera works great.

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому +1

      Thanks Cain, still have a bit of trouble with focus, seems I have to dwell a bit to give it time to do so.

  • @MegaWildweasel
    @MegaWildweasel Місяць тому

    with copper you can either quench or air cool. I always quench

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому +1

      Yes, I like the quench also, knocks a lot of dirt and crap off of it at the same time.

  • @2manymodels
    @2manymodels Місяць тому

    Hi Dale, great video. Very informative and nicely presented. I probably missed this point in one of your other videos - what type of grease do you use on the gaskets? Thanks, Dave.

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому

      Thank you very much, nice to have you along for the ride. Really any light grease will do. It is just to prevent it from sticking to the cases. I use Super Lube.

  • @donbridgewater2988
    @donbridgewater2988 Місяць тому

    Good evening Dale, I really like the new camera!!!
    Everything looked really crisp and seemed to be a lot more sharp.
    What is the blue motor stand you are using?
    I have been busy doing paint work, I will have more videos out soon, I hope…lol

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому +1

      Hey Don, yes still learning about the camera, just takes some time. The engine jig is an OTC 7020. I saw the two tanks you just finished, beautiful, great work my friend. Glad to see your eye is healing up. Nice to see you can return to work. Retirement is just around the corner for you. Now you know what it tastes like. LOL

    • @donbridgewater2988
      @donbridgewater2988 Місяць тому

      @, I am so ready to retire.
      Thank you for the kinda words on the tanks, they are not perfect but look awesome at 10 feet….lol
      Today is my first day back after being off 3 months.
      If it wasn’t wanting to build my shop I would be retired now.
      One year or the shop built, what ever comes first….lol

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому

      Sounds like you have given it some thought. Best of luck on your future plans buddy.

  • @jimgow4991
    @jimgow4991 Місяць тому +1

    Where did you get that engine holder. Very nice.

    • @davidstewart8081
      @davidstewart8081 Місяць тому

      OTC.

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому

      Hi Jim, I bought mine used from ebay probably 20 years ago, but they still make them do a search for OTC 7020. Hold on to your wallet if you buy new though.

  • @andychris1621
    @andychris1621 Місяць тому

    I really like that engine stand mounted to your bench. May I ask what type of work stand that is and where I might find one? Thank you.

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому +1

      Hey Andy, it is an OTC 7020, just do a search for it online. They are kind of expensive, try to find a used one on Ebay or the like.

    • @andychris1621
      @andychris1621 Місяць тому

      @@montana2strokeracer Thank you Sir. I will look into it.

  • @wheels8732
    @wheels8732 Місяць тому

    Hey Dale nice work.
    Where did you get the tool for holding the flywheel while you tighten the main bolt?

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому

      It's a spanner wrench set made by Williams, the part number for the single tool is 484, if you want the 3-piece set it is 50001.

    • @wheels8732
      @wheels8732 Місяць тому

      Thanks Dale

  • @marcelmorin90
    @marcelmorin90 Місяць тому

    Starting the breakdown on my gt80 today ordered a 1977 crank shaft on ebay It came in surprisingly it must have been a low hour motor It was like new🙂 I'll let you know how I make out with the installation.Hopefully its the same specs as 1974.

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому

      Hey that's great Marcel, yes, the 38mm web width is what you want. If you have that everything else is cool. Let me know how you make out, good luck on your project.

  • @banb1681
    @banb1681 Місяць тому

    Can anyone help me please? Recently I bought some new piston rings for my 2 stroke motorcycle it's an yamaha rx100. So like there are two rings. One has an angle cut end gap and the other has straight cut end gap. What is the order of the rings to fit in the piston groove.

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому

      I am not familiar with the RX100, after a quick search, it apparently is much newer than the bikes I typically work on. I have not seen the angle cut end gap that you're talking about. I would try to find a factory Yamaha service manual; it should provide the information you are looking for.

    • @banb1681
      @banb1681 Місяць тому

      @montana2strokeracer thanks for replying. So like here is what I found there are two piston ring and grooves in the 2 stroke. The angle cut end gap piston ring is a typical compression ring design and the oil ring generally has straight cut end gap for scraping the oil more effectively, there are some design variation. I searched all over internet and after that I found similar installation. I don't know but after installation the compression is good.Generally the installation number is written on the rings. But in my case there was nothing. My reed valve is compromised and I ordered a new oem reed so like am waiting for it! Haha I hope my motorcycle gets up running properly! Finger crossed🤞

  • @cainbeeping8480
    @cainbeeping8480 Місяць тому

    Here

  • @jamesbanjomanjohnson
    @jamesbanjomanjohnson Місяць тому

    you don't have 2 drop the gasket in water, slow cooling will work 2, good 2 see you back at it, happy holiday's from the bluegrass, your friend in ky...

    • @montana2strokeracer
      @montana2strokeracer  Місяць тому

      Hi James, glad to see you here. Yes, I like the quenching, it really has a cleaning effect on the gasket also.