Tightening Chain on Chinese 4 wheeler

[Travis Waller]

We just bought this about 2 weeks ago and the chain keeps popping off. I’ve dealt with 4 wheelers in the past but nothing with this chain setup.

[Frank Angerano]

Chain looks way to loose.   Maybe it’s stretched or a tensioner is bad.  

[JacobSlabach]

wayyyy to loose.  It should have about a inch or so wiggle room- you're looking at like 3 or 4 inches lol  There should either be a tensioner or the rear axle adjusts- lift the rear end and there are some bolts to loosen and then the axle swings forward and backward- you want to pull it fairly tight as the chain loosens up with heat.  Also make sure the chain is well oiled so none of the links are bound up- that will make it jump sprocket too even if its tight.

that chain is so loose, it might have one too many links on it- I would try tightening it first tho

[sgtcj]

I had the same problem with a Chinese 110.  Seemed to be a wight issue.  When I rode the chain jumped off.   When the kids road (<100#) it was just fine.   Never could get it to stay on under load.

[Crawdaddy]

You should be able to tighten those 2 bolts in the back, which rotates the axle and tightens the chain.