So this is where I'm at...

Discussion in 'Tech Area' started by askforjonny, Apr 13, 2021.

  1. askforjonny

    askforjonny Member

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    My CT70 now has a new top-end.
    I pull the clutch lever and the bike has ZERO resistance when trying to start.

    I adjusted the clutch cable.

    The bike now just shifts into gear but I'm not able to get the compression stroke feel I would expect when trying to use the kick starter.

    I'm new to these, just trying to get this thing running ‍♂️‍♂️‍♂️

    I appreciate all the help I can get.
     
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  3. kirrbby

    kirrbby Well-Known Member

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    Your bike HAS to be in neutral to kick it over. Wont kick at all if you pull in the clutch lever.
     
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  4. kirrbby

    kirrbby Well-Known Member

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    And, you HAVE to kick it with a slow smooth kick. Slow is key...until you get the feel for it.
     
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  5. askforjonny

    askforjonny Member

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    Trying now.
     
  6. kirrbby

    kirrbby Well-Known Member

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    It's important that you use the correct oil in these bikes. 4stroke motorcycle oil, is made to use with the wet clutch. If you use car oil...it's too slippery, and the clutch will slip, and slip when you're trying to kick start the engine.
    If you use car oil it will ruin the clutch fiber discs.

    Here is some good instruction for how to adjust the manual clutch in your bike.

    https://tboltusa.com/store/tech.php?pID=150/Pit+bike+Front+Manual+Clutch+Adjustment
     
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  7. askforjonny

    askforjonny Member

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    I have honda oil.

    I went through and tightened everything up... I heard some compression Loss when using my hand to "kick" it over.

    So I need to double check spark... points and valves one more time. And I guess I'll try again tomorrow.
     
  8. askforjonny

    askforjonny Member

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  9. askforjonny

    askforjonny Member

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    I was thinking maybe I am 180 deg. Out.... BLAH
     
  10. kirrbby

    kirrbby Well-Known Member

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    180 out on the cam gear is no biggie...should be ok to leave it...or change it.
    180 out on the flywheel...points cam, and you won't even be able to set the points...and no way you could have spark.
     
  11. OLD CT

    OLD CT Well-Known Member

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    Sounds like you are trying to start a bike that has been sitting for a long time with OLD clutch fiber discs, or the original clutch. Time to ''replace the discs'' and inspect the clutch plates.

    You are going to need a ''clutch nut tool'' and a new clutch cover gasket. And a good time to clean all the ''crap'' out of the spinner under the 4 jis screws that are a pain to remove. Have new screws or buy the allen type to make next time easy.
     
    #10 OLD CT, Apr 14, 2021
    Last edited: Apr 14, 2021
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  12. askforjonny

    askforjonny Member

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    You know the feeling of just wanting the thing to run before you put more money into it :(
     
  13. lukelaw1

    lukelaw1 Active Member

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    i don't know of any hobby that isn't a money pit.
     
  14. askforjonny

    askforjonny Member

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    True.
    I'm just rebuilding a 49 ford custom. And remodeling my house right now. I thought that I would get this thing to kick over... you know a little win before the rest of the money is invested
     
  15. OLD CT

    OLD CT Well-Known Member

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    Solid compression always demands a clutch that's fresh and or 100%! :) Can't have one or the other. You need both 100% to be reliable. Be sure to soak the discs in some of that new Honda oil. That's important.
     
  16. Robert thran

    Robert thran Active Member

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    It will be money well wasted!! Lol
     
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  17. askforjonny

    askforjonny Member

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    I think i need to get the timing and the valves sorted out with adjustment. Before I go after a clutch.
     
  18. PoppaBear

    PoppaBear Member

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    I'd like to replace my clutch JIS screws with Allen heads. Any idea what size I need?
     
  19. Gary

    Gary Well-Known Member

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    5mm diameter x 10mm long
     
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