My back wheel won't spin

Discussion in 'Motorized Bicycle General Discussion' started by alisonsup, Sep 6, 2015.

  1. alisonsup

    alisonsup New Member

    Jun 26, 2015
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    I just finished installing my first kit but when I went to turn the wheels to pedal my bike outside I noticed the back wheel was stiff and was really hard to pedal. It was pedaling freely before I put the motor chain on the bike. I opened up the compartment on the motor to see if the chain was stuck or pressing against something but wasn't. I adjusted the chain tensioner to see if it was too tight but the wheel was still stiff. I did notice one thing though. When I first threaded the chain through the motor I noticed that the chain drive in the motor was hard to turn with the chain tool that came with the kit. I considered spraying it with wd40 to get it to spin smoother and easier but I didn't because I really don't know much about these kits or motors and I didn't want to ruin it. The link will bring you to my bike I'm working on and what it's doing.

    *The kit I'm using is a 60cc Aosom kit where the motor is installed in the V part of the bike(between the two wheels)*
    #1 alisonsup, Sep 6, 2015
    Last edited: Sep 6, 2015
  2. 2door

    2door Moderator
    Staff Member

    Sep 15, 2008
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    The video is too dark to see how the clutch cable is installed but my guess is the cable needs to be tightened, adjusted. Here is a good tutorial on how to do that correctly.

    I did notice that your chain is much too loose. You only want 1/2" to 3/4" of slack.

  3. bairdco

    bairdco a guy who makes cool bikes

    Aug 18, 2009
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    Uh, I think the obvious problem is you're not pulling in the clutch.

    In the video, with the cover off, the clutch isn't hooked up. You're fighting the engine's compression.

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