Zoom Slanthead Engine

Discussion in 'Motorized Bicycle General Discussion' started by Charged-Reacter, Sep 21, 2009.

  1. Charged-Reacter

    Charged-Reacter New Member

    Joined:
    Dec 12, 2008
    Messages:
    286
    Likes Received:
    0
    What is your opion on the zoom 68.5cc defect on cylinder where
    intake bolts up with the small holes way back on the cylinder?
    Those that ordered jet black will not even notice it. Thats why
    I ordered Jet Silver to inspect. Other than that it is one of the best
    casting for looks and straight fins I have ever seen. There back where it is
    difficult to spot. Took end of paperclip and it went on through and made hole a
    little bit bigger.
     
  2. Reel Adventure

    Reel Adventure New Member

    Joined:
    Jul 1, 2009
    Messages:
    73
    Likes Received:
    0
    come again? I have the jet black with none of the issues you described. I have a silver one that I will get in a few weeks once I get my stuff from halycon. Post a pic when you get yours or a link to the description of the problem.

    Thanks
     
  3. Charged-Reacter

    Charged-Reacter New Member

    Joined:
    Dec 12, 2008
    Messages:
    286
    Likes Received:
    0
    It is very difficult to spot the pin hole in the casting because of
    the location. What led me to find it was the intake casting of cylinder
    is different than the other engines. Same location on both sides of
    cylinder intake. Sorry I had to return the camera that I borrowed.
    Stay above bolt holes and go all the way back to cylinder where fins attach.
    At first I thought it was a black speck , so on jet black engine you will not
    notice it.
     
  4. Reel Adventure

    Reel Adventure New Member

    Joined:
    Jul 1, 2009
    Messages:
    73
    Likes Received:
    0
    I found them on by black one. Right on top of the intake where you said, both sides. Pulled off the intake tube and it does not go all the way through. Used a piece of wire to poke in the hole and from what I can tell it does not go into cylinder. Might JB weld it.

    Good find!

    If anyone finds that it goes into cylinder please post.
     
  5. Humsuckler

    Humsuckler New Member

    Joined:
    Jul 28, 2009
    Messages:
    458
    Likes Received:
    0
    word. ill have to check for that! i suppose a leakdown test is in order lol
     

Share This Page