QMB139 and GY6 Valve Adjustment the Easy Way

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  • Опубліковано 30 вер 2024

КОМЕНТАРІ • 42

  • @BarnieMay
    @BarnieMay День тому

    You go to great lengths to making your videosawesome but there's actually no critical information on the valvegap millimeter is So somebody doing this project and needing to know what the clearances without having fila gages this video is useless

  • @PedroRodriguez-hy5ty
    @PedroRodriguez-hy5ty 8 днів тому

    Good information

  • @ericmcmillin9266
    @ericmcmillin9266 5 місяців тому +1

    Please for the love of God anybody that does a valve adjustment...torque the tappet nuts to spec!! Do NOT hand tighten them. Use a torque wrench!! They have a tendency to back off the thread.

  • @jarodhuber2687
    @jarodhuber2687 Рік тому +1

    Hello! So I have a question. My scooter has poor idling issues whenever I come to a stop. Sometimes it just wants to die. I thought maybe the valves needed adjusting and did that to correct spec. However it’s still not idling right and almost dying at stops. What’s the issue? Is it carb related? Thanks.

    • @baileylakey7390
      @baileylakey7390 Рік тому

      Likely needs a carb clean, sounds like idle jet may be blocked

    • @seanmckay3392
      @seanmckay3392 5 місяців тому

      Maybe your clutch is shot i had that happen one of my springs broke and it wanted to drive all the time

  • @sandeepram8429
    @sandeepram8429 2 місяці тому

    Hi, my scooter was making noise, I did the valve clearance and it was solved, but after two days it's like before again. What could be the causes and how could I resolve it?

  • @blacklabeleadslinger
    @blacklabeleadslinger Рік тому +1

    That's never all there is to it...

  • @seanmayo206
    @seanmayo206 6 місяців тому

    What if it was a 1p39qmb but received a rolling wrench 50mm piston complete kit

  • @MangScoots
    @MangScoots 3 місяці тому

    thanks man, i had a buddy re-do my engine and its clattering like no other, sounds like a constant ticking, obviously ik it should a bit but iv rode this same scoot for 2 years and its never sounded like this, i guess i gotta get my hands on a tappet and guages lol, thanks again man

  • @Broken_AK47
    @Broken_AK47 6 місяців тому

    there is something wrong. every manual state MM and from 0.04 to 0.05. all of them. even the service manual for my 2020 scootterre bistro 50 from the dealership says 0.04-0.05MM. and your tool is like 0.10mm or 0.004 inch. both terribly wrong.
    are all manual in the world wrong ( damn chinese stuff ) ? or the marking on the tool is wrong ?
    i need to know. i have a quality ( OEM TOOLS 44025 ) feeler gauge but it starts at 0.004 and is thinner than a paper sheet. its more like kitchen aluminium foil. been told its not the right one for 139qmb valve gap.
    thanks

    • @Partsforscooters1
      @Partsforscooters1  5 місяців тому

      .004 and .005 are correct. .04 and .05 are WAY too large.

  • @josephchanda65
    @josephchanda65 11 місяців тому

    Hi i have a question mine is not starting at all but the starter is turning long time not being used were should I start coz I now what to adjust the value am I on the right track

  • @christ510
    @christ510 Місяць тому

    Easy peezy

  • @lester6340
    @lester6340 2 роки тому +1

    Them tool work awesome I order sme

  • @alexcruz9449
    @alexcruz9449 Рік тому

    I cant move my flywheel enough to sit on the t it wont let me what should i do

  • @coidumalexandrunicolae9458
    @coidumalexandrunicolae9458 7 місяців тому

    Its available for 80cc kit to?

  • @monty81567
    @monty81567 Рік тому

    Hello again.I need your help,do you have any GY6 stators that work.The band new motor that I got some time
    ago has no power on the spark side,it has power on the other side.Did check it with an omh meter,watch a UA-cam
    to make sure I did it right.
    Question-can I swap out the 8 pin stator and put in a 12 pin stator for more even flow of electricity to the lights.

  • @jdub_bkv6598
    @jdub_bkv6598 Рік тому

    After i set valve lash my gy6 has a loud tapping noise. Now what do i do? Any help would be appreciated

    • @jdub_bkv6598
      @jdub_bkv6598 Рік тому +1

      Note: I did .004 for both int and exh after watching a different video so I will probably set exh to .005

    • @Partsforscooters1
      @Partsforscooters1  Рік тому

      @@jdub_bkv6598 Set the exhaust to.005, but these engines typically make a tapping noise when they're running correctly. If it's VERY loud, you have some other valve issue that needs to be addressed.

  • @jonnupe1645
    @jonnupe1645 5 місяців тому

    Thank you

  • @yardcandy
    @yardcandy 10 місяців тому

    Could we have the cover bolts torque setting please ?

    • @adivarso8175
      @adivarso8175 10 місяців тому +1

      just number each one and mark them before undoing them, then re tighten to the marks you made.

    • @yardcandy
      @yardcandy 10 місяців тому

      @@adivarso8175 good tricl, but it's too late for that, would you have the number? (yes I can also compare the bolt size with a chart and get it but still)

  • @monty81567
    @monty81567 Рік тому

    Hi,I found two parts over at your website,Right Engine Crankcase Cover but there are two sets of #'s.One is for
    47 tooth gear and the other is for 33 tooth gear.Too fix the old motor,Let me guess- have to take the cover off
    to find out.

  • @monty81567
    @monty81567 2 роки тому

    Hello.When I started modding my Racer 50(2019),I made mistakes on the motor,to many lights. Now
    it's back in the shop & got rid of the extra addons.Ordered new parts,new motor,clean the gas tank out.
    While going thru my collection of old parts i found a press on final drive gear with 13 teeth.the standard
    drive gear is 15/52.That drive gear(13) would make it slower? Going to bump it up to a 80cc.The frame
    weight is 187 pounds & mine is 190lbs or should I have my guy bump to 100cc.

    • @Partsforscooters1
      @Partsforscooters1  2 роки тому

      How fast are you looking to go? Also, the 50cc 4t bikes can't go up to a true 100cc so what kit would you be looking at? As far as the gear, do you only have the single gear or do you have the complete upgear set? A single gear won't do you any good as the gearsets are cut to work together. A single gear might not mesh well when installed.

    • @monty81567
      @monty81567 2 роки тому

      @@Partsforscooters1 Saw one of your older videos about final drive gears.I want to set it up so I can maintain the speed around town,where I live the speed is 35 to 45 mph.
      Even if I left it at 50cc & change out the gears,press out & add the 17 teeth and the 49 teeth that came with it.
      Would that give me another 5mph?

    • @Partsforscooters1
      @Partsforscooters1  2 роки тому

      @@monty81567 No. The stock engine isn’t powerful enough to push taller gearing. To get a reliable 45 mph you’ll need to install a pretty stout big bore kit at least. Take a look at the Naraku 52.4mm kit. After you get the BBK running, you can start to tune your variator and weights to it, and after you get that done, if you still need more speed you would start looking at gears. They’re usually the last thing you look at.
      www.partsforscooters.com/137-4-Naraku-Cylinder-Kit

    • @monty81567
      @monty81567 2 роки тому

      @@Partsforscooters1 Thank you for your help,I wish I had found & talk to you back in 2019 before I did any mod's to the motor.
      Would've just did the upgrade and left it alone. This summer my brother & I got
      are motorcycle Lic,pass the ridding & the written test.
      Been rebuilding the back half of the Ninja 250,ordering parts that were missing,plastic pcs,hardware,new blinkers & mounts all were broken. 1st owner treated it like a stunt bike,2nd owner no better,everything was dry out.
      Thanks for your help.I let you know how everything went,when upgrade is done.

    • @Partsforscooters1
      @Partsforscooters1  2 роки тому

      @@monty81567 Too bad! We’ve been doing this for 20 years now.
      Sounds great, and if you need any more help, just go to www.PartsForScooters.com and use the live website chat. One of us will be happy to help.

  • @robbygaume600
    @robbygaume600 Рік тому +4

    The thing I like best about your video is that you give a close-up view of how to align the holes on the cam gear to get the motor a TDC.

  • @straggler666
    @straggler666 10 місяців тому

    That's a socket not a wrench