Full Pit Bike YX140 Engine Rebuild *** Hints and Tips on improving your engines performances.

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  • čas přidán 26. 01. 2024
  • In todays video we will be doing a full pit bike YX140 engine reassembly. All the best hints and tips on how to get the best out of your pit bike engine.
    Pit Bike tools
    Valve Lapping Tool
    www.ebay.co.uk/itm/2236629111...
    Flywheels Puller
    www.ebay.co.uk/itm/1663305368...
    Pit Bike castle nut tool
    www.ebay.co.uk/itm/2961341312...
    Valve setting tool
    www.ebay.co.uk/itm/2344488556...
    Feeler gauge
    www.ebay.co.uk/itm/1961536439...
    Valve comprising tool
    www.ebay.co.uk/itm/4042247483...
    Facebook
    / pitbikesonic
    Twitter
    / pitbikeson. .
    Instagram
    / pitbikesoni. .
    Tictok
    vm.tiktok.com/ZMdwGD4Ec/

Komentáře • 32

  • @onthethrottle9230
    @onthethrottle9230 Před 3 měsíci +3

    Very insightful you can tell Sean has done that 100s of times now

  • @megasheddiaries
    @megasheddiaries Před 3 měsíci +3

    Big up the Whitaker 👏🏼. Like the clutch holding tip.

  • @bazzastorm4217
    @bazzastorm4217 Před měsícem +1

    This is an excellent and informative video you sir are a natural teacher good skills

    • @Pitbikesonic76
      @Pitbikesonic76  Před měsícem

      Sean, one who does the engine, is very good. I will past it on your kind words.

  • @Mattpitbiketeam
    @Mattpitbiketeam Před 3 měsíci +2

    GREAT TUTORIAL!

  • @willgarrod9907
    @willgarrod9907 Před 3 měsíci +1

    that is mega helpful especially as we need to do a full tear down after yesterday's action and crankcase crackage!. Could do with a download of of Sean's brain when its available😆

    • @Pitbikesonic76
      @Pitbikesonic76  Před 3 měsíci +1

      I sent him your video he has never seen one crack there b4 !

    • @willgarrod9907
      @willgarrod9907 Před 3 měsíci

      @@Pitbikesonic76yes it is a weird one but we’re learning loads as we fix it. We want to be ready to do the last winter series round at Stretton in 2 weeks so it’s a bit of a rush.

  • @andrewd3338
    @andrewd3338 Před 2 měsíci +1

    I have a 140 and I rebuilt it put race cam and rings and everything correct I believe and I can't get more than 80 psi compression

  • @sz004
    @sz004 Před 3 měsíci

    Suspension maitenance episode would be also very helpful! Regards!

    • @Pitbikesonic76
      @Pitbikesonic76  Před 3 měsíci +1

      If I have some problems with suspension, I'll do a video on it. My folks and shock have always been very reliable, so it's something iv never really mucked about with.

    • @sz004
      @sz004 Před 3 měsíci

      @@Pitbikesonic76 some periodic service operations should be done even if everything seems ok e.g. suspension oil wears out, there should be a proper amount of it in forks (mm belowe the top cap) and so on... your mechanic seems to be very competent, I would be pleased to hear his opinions. Greetings from Poland!

  • @Giblet16
    @Giblet16 Před 3 měsíci

    This video made me check my tension cap good job I did there's nothing there 😮

    • @Giblet16
      @Giblet16 Před 3 měsíci

      Engine only done 1800 miles on my road legal

    • @Pitbikesonic76
      @Pitbikesonic76  Před 3 měsíci

      The rubber ones do wear away quickly!

    • @Pitbikesonic76
      @Pitbikesonic76  Před 3 měsíci

      The stronger ones are the best engine upgrade

  • @VinceFlaherty88
    @VinceFlaherty88 Před 3 měsíci +1

    Great video as always!
    Noticed there’s no oil slinger on the end of the crank on yours, is there any benefit to that?

    • @Pitbikesonic76
      @Pitbikesonic76  Před 3 měsíci +1

      Its because this engine was a gen4, and they don't have them. And I changed the casing for Gen 3.
      I'm getting a modified clutch adjuster bracket made, so I should be going back to Gen 4 soon 😁

    • @VinceFlaherty88
      @VinceFlaherty88 Před 3 měsíci

      @@Pitbikesonic76 aaaahhh makes sense buddy. Cheers for that! 👍👍

  • @Karlos_Fandango
    @Karlos_Fandango Před 2 měsíci +1

    Great vid but which stator and flywheel are you using? I’ve tried to fit a lifan 150 system today but can’t get it to fit. Cheers

    • @Pitbikesonic76
      @Pitbikesonic76  Před 2 měsíci +1

      I use the Lightened one from Parker Racing
      www.ebay.co.uk/itm/165581566828?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=MxmeAqfSRCW&sssrc=4429486&ssuid=DRHV2jSqTsq&var=&widget_ver=artemis&media=COPY

  • @OlaSvensson-xx8kj
    @OlaSvensson-xx8kj Před měsícem +1

    What causes forks to shift poorly into third gear and start hacking?
    What causes forks to wear out? Why hasn't anyone manufactured ones that last?"

  • @xxstanc3don3xxtwitch23
    @xxstanc3don3xxtwitch23 Před 3 měsíci +1

    Valve clearance 0.04 - 0.06 ?

  • @Kroviakjm
    @Kroviakjm Před 3 měsíci +1

    Where can I find that metal tipped cam timing plunger thing?

    • @Pitbikesonic76
      @Pitbikesonic76  Před 3 měsíci +1

      www.parkerracing.co.uk/product-page/yx140-timing-chain-tensioner-upgrade
      There you go buddy 👍

  • @adamcarey2528
    @adamcarey2528 Před 3 měsíci +1

    do you get the whole year out of 1 engine? when i rode 140s was going true an engine every 3 months

    • @Pitbikesonic76
      @Pitbikesonic76  Před 3 měsíci +1

      It depends bud most time yes I get a whole season out of an engine before it gets taken apart again and checked over.
      But yes, I know a lot of people who will go through a few engines a season 🫣

    • @goon_eg1089
      @goon_eg1089 Před 28 dny

      I got 1100ish miles from my 140, head gasket blew, had the wrong valve specs for abit(think they were too tight from stock) just fit a topend. Compression was showing 150ish.