DIY Motorcycle Exhaust - Fixing the Elefant - Episode #1

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  • เผยแพร่เมื่อ 12 เม.ย. 2024
  • This is the first episode in a series where I prepare my adventure motorcycle for the season. I have promised to go on a roadtrip together with my friend ‪@tshansen‬ - can I get my bike ready in time?
    One of most important issues is fixing the exhaust. Since I have bought a Cagive 750 Elefant from 1990, it's not that easy to fix it. It's just imporssble to buy a new exhaust, since Cagiva as a brand no longer exists. Since the bike is quite rare, no 3rd party manufactorers makes a bolt-on soluteion either.
    #cagiva #adventure #motorcycle
    Thanks to ‪@lynvingen84‬ for drone footage used in the intro 😊
    Music from the TH-cam Audio Library:
    "Minor Lament for Solo Bass" by John Patitucci
    "Moorland" by Underbelly & Ty Mayer
    "The Movement of India" by Aakash Gandhi
    "To Pass Time" by Godmode
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ความคิดเห็น • 50

  • @thaifoodtakeaway
    @thaifoodtakeaway 3 หลายเดือนก่อน +4

    I used to own a Ducati Monster 796 with twin Termignoni exhausts. The sound of a Ducati is something I really love. Your new exhaust pipe makes it sound like a Yamaha, but as someone already mentioned, it will make long trips more bearable. Well done with your welding skills. If you are short on time, you might want to fix that plastic mud flap with some fibre glass now, and get back to it later when you have more time. Being half an hour late for summer here in Norway means missing out on half of the summer.

    • @kihestad
      @kihestad  3 หลายเดือนก่อน

      Haha, that is so true. The mc season ends almost as it starts, I might have to do some quick fixes of the things that are not that important.
      I think this engine is the same as used on Ducati Monsters in the 90s, but it's tuned a bit diffently I think. Probably more torque and less HP (I'm not really sure)

    • @stefanocosimetti2969
      @stefanocosimetti2969 หลายเดือนก่อน

      ​@@kihestad it is but it comes from pantah

  • @michaelovitch
    @michaelovitch 3 หลายเดือนก่อน +1

    To check back pressure or exhaust restriction, you can measure engine vacuum.
    You will know if performances are reduced for each set up,and get the best combination.

    • @kihestad
      @kihestad  3 หลายเดือนก่อน

      Aha, that was very clever - makes sense. Never thought about that. Will it be a positive sign if the vacuum is increased after changing exhaust?

    • @michaelovitch
      @michaelovitch 3 หลายเดือนก่อน

      @@kihestad
      If vacuum increases,it's a sign that the engines exhaust more easily its gases.
      If vacuum reduces it's a sign that the engine can't push out its gases as easily as previously.
      If you had a oxygen sensor bung,you could insert a pressure gauge,directly in the exhaust system, and see positive pressure instead ,in case of back pressure.
      More vacuum does not mean necessarily more power,but a better scavenging effect from your exhaust.
      The best is to test at idle,peak torque rpm,and while blipping the throttle.
      Knowing you have carburetors,more vacuum mean that you may disrupt the fuel tuning and run a bit leaner.
      Use a restrictor on the vacuum gauge,so it's not bouncing around if it's a needle.
      Check your spark plugs color after run tests,so you know how well the fuel is tuned.

    • @kihestad
      @kihestad  3 หลายเดือนก่อน

      @@michaelovitch This is so well explained and very useful info! I am glad I still have the original exhaust. Even if it's not in perfect condition it will useful to have a benchmark. Thanks a lot!

  • @ingeebeltoft
    @ingeebeltoft 3 หลายเดือนก่อน

    Kjæmpefint prosjekt. Du er flink 😎

    • @kihestad
      @kihestad  3 หลายเดือนก่อน

      Takker så meget 😊

  • @tshansen
    @tshansen 3 หลายเดือนก่อน

    Haha, gret into Mr.Hested 🤣 I will do my best to put the heat on so you make it all before our big trip together. You doing a great job with the tig. Impressive work and really well done again.

    • @kihestad
      @kihestad  3 หลายเดือนก่อน

      Doing my best to be prepared, fixing the brakes now 😊

  • @RyansGarageUK
    @RyansGarageUK 3 หลายเดือนก่อน

    Hi KI, as usual you take a task like replacing an exhaust and turn it into an entertaining story. I think the result is a success but agree the bike deserves to sound a little more capable then it does fully restricted..

    • @kihestad
      @kihestad  3 หลายเดือนก่อน

      Thanks Ryan, yea - you are not the only one who has mentioned that 😊 My neighbor was actually standing behind the bike when I did the testing, he said the sound on the video was not quite the same as what it sounded like in real life. He also told me to skip the dB-killer, it was sounding much better without and not too loud at all. I will be testing the new dB-killer when it arrives, hopefully I can tune it a bit 🤞

  • @juststeve5542
    @juststeve5542 3 หลายเดือนก่อน

    Good job adding one more task to the list - it's the motorcycle tradition!
    21:30 - Yay! That's what we want to hear! 😂

    • @kihestad
      @kihestad  3 หลายเดือนก่อน +1

      Hahaha, I guess you're right 😂

  • @leslieaustin151
    @leslieaustin151 3 หลายเดือนก่อน

    1st, please note, I’m NOT putting photos of my home-made silencer (trail bike) on the internet so people can laugh at my horrible aluminium TIG welding…
    you asked what do we think. Well, I think you made a very good job of it. And your welding certainly got better as you went on… did you go off for a TIG welding course in the middle of the video?
    Sounds? Doesn’t sound as ‘fruity’ with the new exhaust on, but a loud exhaust is a pain for long-distance riding, and will tire you out, so the fact that it’s quieter is a real bonus. I silenced my (little 125) engine by stuffing the ‘can’ with stainless steel pot scrubbers. It worked well. Maybe too well! Enjoying your videos, thank you. Les in UK 🇬🇧

    • @kihestad
      @kihestad  3 หลายเดือนก่อน +1

      I guess the welding had to end up improved during the project, because it could not get any worse 😝

  • @redrockroger
    @redrockroger 3 หลายเดือนก่อน +3

    You have a very unique way of design-build-modify iteration. Your method is inspiring.

    • @kihestad
      @kihestad  3 หลายเดือนก่อน

      Glad you find it inspiring 😊 Research and planning ahead of project start, and evaluation and adjusting the plan during the project is also important. That happens mostly off-camera. However, it's impossible to plan for everything when you're doing something you're not skilled at. I like the method of 'learning by doing' as well, so I guess it's a mix of starting with theory and then going to practice and vice versa 😊

  • @gregmize01
    @gregmize01 3 หลายเดือนก่อน +1

    rock wool is awesome stuff. I use to make recording studio sound absorbers!

    • @kihestad
      @kihestad  3 หลายเดือนก่อน +1

      I totally agree! This Rockwool was left over from when I built acoustic sound panels, it's just impressive how it "eats" the sound 😊

  • @adamcichy4887
    @adamcichy4887 3 หลายเดือนก่อน +1

    Great work Ki, The full system does sound a little over damped, but the result of a working exhaust is progress. A modified Db killer will regain some Ducati twin exhaust sound; which everyone loves.

    • @kihestad
      @kihestad  3 หลายเดือนก่อน

      Thanks 🙏 I hope a modified dB-killer does the trick. I guess I'll have to get the Ducati sound back 😋

  • @kurtmiller7945
    @kurtmiller7945 3 หลายเดือนก่อน

    Perfect as always mate Sound is good and like the original without the DB Killer. With DB Killer the bike sounds kastrated.....

    • @kihestad
      @kihestad  3 หลายเดือนก่อน

      Okay, uhh - castrated that sounds bad 😅

  • @BradleyBezzina
    @BradleyBezzina 3 หลายเดือนก่อน

    Fantastic job!

    • @kihestad
      @kihestad  3 หลายเดือนก่อน

      Thanks, it did not turn out too bad 😬

  • @ingeebeltoft
    @ingeebeltoft 3 หลายเดือนก่อน +1

    You killed the Ducati sound 😂

    • @kihestad
      @kihestad  3 หลายเดือนก่อน

      Haha, need to try to get it back

  • @TitiloTeam
    @TitiloTeam 3 หลายเดือนก่อน +1

    Great job! Getting better at welding is just practice! Thanks!

    • @kihestad
      @kihestad  3 หลายเดือนก่อน +3

      Thanks 😊 Practice is everything, you can read 100 books and see 100 TH-cam videos, but doing it is the only way to really get better

  • @DennisBishop
    @DennisBishop 3 หลายเดือนก่อน

    Great video, as always! Really enjoy watching your projects and marveling at the increasing professional quality of your video production. Keep up the great work!

    • @kihestad
      @kihestad  3 หลายเดือนก่อน +1

      Glad to hear that @Dennis, still trying my best to improve slightly for every video 😊

  • @remfanuk1970
    @remfanuk1970 2 หลายเดือนก่อน

    super slick enjoyable video as usual 🙂 i think the original sounds the best but your effort is very good.

    • @kihestad
      @kihestad  2 หลายเดือนก่อน +1

      Thanks, and I have to agree 😊 I have bought a new dB-killer now, it has the possibility to remove the cap at the end to get better airflow. I'll try it out and if needed test different kinds of modifications to it to try to get closer to the original sound. It cost less than $10, so the project is not very risky 🤞

  • @stefanocosimetti2969
    @stefanocosimetti2969 หลายเดือนก่อน +1

    U are a very talented guy i admire and envy u coz I would like to be able to work like u 😊.
    Great job, anyway I applied a sheet of thermal insulator inside of the side panel just to avoid the exhaust heat would damage the plastic.

    • @kihestad
      @kihestad  หลายเดือนก่อน +1

      Thank you 🙏 it has taken me a long time to get where I am tody with my workshop, my tools and my knowledge. As long as one are willing to work hard and dedicated the results will come! It is already heat protective mats on the inside of the side covers on this bike, it's a smart solution! 👍

    • @stefanocosimetti2969
      @stefanocosimetti2969 หลายเดือนก่อน

      Probably mine was removed because of the age. So I applied a new one. Some ppl from ducati told me even the screw to remove the saddle get hot during the driving so I insulated even that one.
      Me I took 3 years and a lot of money to fix a lot of things and its not finished yet. Lately i had problems with odometer and rev counter. Once a new problem appeaer i go to fix it. There is no other way.
      I would like to show u my elefant

    • @kihestad
      @kihestad  หลายเดือนก่อน +1

      @@stefanocosimetti2969 please send me pictures 🤩 You will find my email in the "about" section. My tachometer cable is broken and this weekend the speedometer gear at the wheel driving the cable stopped working 🥴 I am converting to digital, it makes it easier to install an tablet for GPS

    • @stefanocosimetti2969
      @stefanocosimetti2969 หลายเดือนก่อน +1

      ​@@kihestadme I just broke the rev counter cable 😢. I try to keep the elefant more original as possible. But that tools didnt work good 35vyears ago...just imagine now..

  • @Stijger-le8oj
    @Stijger-le8oj 3 หลายเดือนก่อน

    Wow, your fabricating skills are getting so good! It looks very nice 👍🏻

    • @kihestad
      @kihestad  3 หลายเดือนก่อน

      Thanks, "learning by doing" pays off (ref: John Dewey)

  • @1983Macgyver
    @1983Macgyver 3 หลายเดือนก่อน

    Hei. Interessant video som vanlig. Det ene eksosrøret kan ha vært lenger for å utligne trykk. Dette så begge sylindrene skal få lik motstand i eksosen. Det blir som to paralelle kabler som skal frakte lik mengde strøm, da må kablene være eksakt like lange. Om det var forståelig. Takk for bra video. Hilsen ingeniør.

    • @kihestad
      @kihestad  3 หลายเดือนก่อน +1

      Yess, nettopp. Vanskelig å vite om det hjalp slik jeg gjorde, men synes motoren i hvert fall gikk jevnt med den nye "boxen" 😊

    • @1983Macgyver
      @1983Macgyver 3 หลายเดือนก่อน +1

      @@kihestad så bra. Syns det ble fin lyd i den i hvertfall. Er du forresten fornøyd med TIG apparatet? Har lyst på ett selv. Har sett på kombi MIG/TIG og pinne apparat også men usikker på kvaliteten.

    • @kihestad
      @kihestad  3 หลายเดือนก่อน +1

      Ja, veldig fornøyd med apparatet. Har gått over til puls nå, særlig når jeg sveiset sammen to stk 1mm aluminimum så fungerte det bra for å få bra innbrenning men samtidig ikke brenne hull. Apparatet er så lett å stille inn, ja dette kan jeg absolutt anbefale basert på min erfaring så langt (med utgangspunkt i at jeg aldri har prøvd noe annet apparat da....)
      At det skulle være så gøy å gå fra MIG til TIG hadde jeg ikke trodd. Det å nå kunne sveise "vanlig" stål, rustfritt og aluminium med et og samme apparat og gasstype er utrolig gøy. OBS: Det går med mye Argon gass, det må en være forberedt på. Jeg har kjøpt 8 liters-flaske på JULA, påfylling er nesten kr 1800,- og jeg har alt brukt opp ei flaske 😬 Jeg klippet opp en haug med aluminiumsbiter og satt en dag og øvet meg, tenkte ikke på gassforbruket. Hadde vel vært bedre å faktisk øve på den delen jeg likevel skulle lage i stedet for å bruke gass på massevis av øvingsbiter som etterpå gikk i søpla 😵‍💫 Det slites også på elektrodene også, i hvert fall når en knøler som nybegynner slik jeg gjør. Jeg har tre stk på 1.6mm som jeg synes passer best, har vel brukt opp snart 50% av disse 😝

  • @Gunman112
    @Gunman112 3 หลายเดือนก่อน

    Hi, Nice job!
    However... Are you sure that aluminium will hold up to exhaust temperature? Aluminium melting point is around 660degrees celsius and also it is very thermo conductive ( will possibly melt Plastic around it).
    I had using mild steel silencer inserts to quiet down customers bikes on my wheelie stand, and steel just stretched due to temperature of exhaust gases....
    Be safe.

    • @kihestad
      @kihestad  3 หลายเดือนก่อน +1

      It did become very hot on the outside, and I will make heat shields where it's needed. I'll pay close attention to it when I start using the bike, if it starts to deform I'll better make a new one using stainless steel 🤞

  • @ingeebeltoft
    @ingeebeltoft 3 หลายเดือนก่อน +1

    Du kan jo tette noen hull i dbkillern

    • @kihestad
      @kihestad  3 หลายเดือนก่อน +1

      Den jeg har er tett i enden og har små hull på sidene, den jeg har bestilt kan åpnes i enden. Skal høre hvordan det blir , og derfra eksperimentere til jeg får "passelig lyd" 😜