Ct70 info for newbie

Discussion in 'Projects/Builds' started by Bad Dax, Oct 4, 2017.

  1. racerx

    racerx Administrator
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  2. Bad Dax

    Bad Dax New Member

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    Hi can anyone tell me what the handlebar configuration is for a ct70ko with a 3speed semi auto, does it have a horn switch, light switch and one brake lever?
     
  3. racerx

    racerx Administrator
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    Dimmer switch on the LH bar, horn button on the RH bar and two brake levers. LH bar lever (mounted via welded lever perch) rear brake control, in addition to the foot pedal. CT70 frames had a rear brake cable perch until midway through K3 production in 1973.
     
  4. Bad Dax

    Bad Dax New Member

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    Hi can anyone tell me the difference between a z50 front fork the top section thats painted and a ct70ko fork, and is the z50 swingarm the same as a ct7 any help would be appreciated regards scott
     
  5. Bad Dax

    Bad Dax New Member

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    Hi im looking at a ct70 hko but theengine number is st70e116884 frame no ct70274958 its an original bike with original engine does this sound correct, vin tag says 6/71
     
  6. kirrbby

    kirrbby Well-Known Member

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    If the frame vin says CT70- and the engine # says ST70- it's not the original engine.
    If the frame vin # says CT70-xxxxxx then it's not a CT70H.
    A H would have a CT70H-xxxxxx vin #
     
  7. racerx

    racerx Administrator
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    That's a late-production K0 (3-speed/semi-auto) frame, the VINs don't go much higher. From memory, they ended very close to CT7028xxxx. If the bike were an H model, the VIN would be CT70Hxxxxxx. Obviously, this machine has been cobbled together. That said, if the engine is a 4-speed/manual clutch model, then an ST70E would be an ultra-rare piece, outside of Japan. Verify the serial number. It's far more likely to be "CT70E" and a 3-speed/semi-auto, or "CT70HE" if it's a 4-speed.

    What is your goal for this project? While purist-collectors are dead-serious about "matching numbers", mechanically, there's nothing special about them. It is possible to build anything up to and including a show-quality bike from any year/model engine & frame combination.
     

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