Chain jumping/sticking problem!

Discussion in 'Hubs, Gearboxes, Sprockets and Chains' started by Dominic, Oct 8, 2018.

  1. Dominic

    Dominic New Member

    Joined:
    Oct 7, 2018
    Messages:
    11
    Likes Received:
    0
    Hey guys! I'm new to this stuff but I managed to piece together my own gas bike and it worked fine for a couple of days. Suddenly both the chains on my bikes popped or something. The chain for my pedal sprocket came loose even when i attached it back properly it had more slag then usual. Before it was perfectly tight. Secondly the chain connecting to my engine now started to make a click and get kinda stuck. Even when the clutch was disengaged it would roll then click and become hard to move then just start rolling again fine. **** I can still actually use the bike but I dont wan't to out of fear of damaging it and just general danger. I checked the clutch, chain tensioner and double checked my chain alignment. Everything seems fine? The **** could it be? If anyone replies because I dont know if im wasting my time i will post pictures and videos. Thanks in advance anyone!
     
  2. crassius

    crassius Well-Known Member

    Joined:
    Sep 30, 2012
    Messages:
    4,032
    Likes Received:
    153
    sounds like the rear wheel moved forward in the dropouts
     
  3. Dominic

    Dominic New Member

    Joined:
    Oct 7, 2018
    Messages:
    11
    Likes Received:
    0
    That could be it, you going to be on for a couple minutes? I'm gonna post a video and pics
     
  4. Dominic

    Dominic New Member

    Joined:
    Oct 7, 2018
    Messages:
    11
    Likes Received:
    0
  5. Dominic

    Dominic New Member

    Joined:
    Oct 7, 2018
    Messages:
    11
    Likes Received:
    0
    I think you may be right, the nuts on my wheel moved holy crap
     
  6. Willis617

    Willis617 New Member

    Joined:
    Jul 20, 2018
    Messages:
    14
    Likes Received:
    5
    Thanks for posting this, I'm near completion of my first build and was thinking i may need to fabricate something to prevent this from happening, now i have my answer
     
    Dominic likes this.
  7. Dominic

    Dominic New Member

    Joined:
    Oct 7, 2018
    Messages:
    11
    Likes Received:
    0
    I'm hoping a good ol re tighten will work. Think I might get better nuts though
     
  8. crassius

    crassius Well-Known Member

    Joined:
    Sep 30, 2012
    Messages:
    4,032
    Likes Received:
    153
    yes, tightening the axle will help, but where is your derailleur and your tensioner???
     
  9. Dominic

    Dominic New Member

    Joined:
    Oct 7, 2018
    Messages:
    11
    Likes Received:
    0
    I took the derailleur off and cut the chain down to permanently fit into the third set of teeth on one sprocket and the second on the other to make it single speed. My bike tensioner is removed only until i tighten my axle. After that I am re-installing it. Hopefully this aligns everything back up. Before it was entirely perfect.
     
  10. Chaz

    Chaz Well-Known Member

    Joined:
    Jun 3, 2012
    Messages:
    1,004
    Likes Received:
    66
    Looking at the bottom picture you posted it appears that you have the order wrong on the sprocket adaptor "rubber sandwich". From the inside out, the sequence is nut, metal crescents, rubber, spokes, rubber, and then finally the sprocket. Then the bolts go through all of that.

    Looks like you have rubber on the outside of the sprocket. The spokes seem to be directly against the sprocket. This could be causing you some problems.

    please excuse me if I am incorrect.
     
  11. Dominic

    Dominic New Member

    Joined:
    Oct 7, 2018
    Messages:
    11
    Likes Received:
    0
    You're entirely right, I plan on fixing that tomorrow. For now i got the noise to stop and the chain runs smooth again just from pulling back the tire and tightening it.
     
  12. BrandFord2140

    BrandFord2140 New Member

    Joined:
    Oct 19, 2019
    Messages:
    7
    Likes Received:
    2
    I have a question about my own I was just on a ride my chain jammed in the engine tight enough so it wouldn't let the bicycle roll forward or backwards can I have some kind of idea of what happened cuz it's done that to me since I got it on the road and this is a kit I bought off the internet it's a 48cc 44 tooth rear sprocket 9 tooth drive sprocket with a custom spring tensioner on the chain if need be I can post pictures
     

Share This Page