As the title says, I had everything disassembled, painted and put it all back together. I tore it down the day I bought it so I don't know if it was like this before. There is a 1/2"x1/2" square frame member tube (going left/right). The bottom of the chain is actually resting on this. If I sit on the quad, pushing down the rear strut & arms, it is able to clear the frame member, but the chain is quite a bit more loose in this position. With my son sitting on the quad, he doesn't have enough weight to move it at all, so when ridden, the chain is rubbing over this cross member. I also noticed that I'm out of adjustment, the rear hub is adjusted as far back as possible, Is this normal? Should I throw a tensioner on there?

 

Is it possible to take a link or two out of your chain ,,

 

Chain is prolly stretched. Might need a new chain.

 

Well, with the adjusters pulling back as far as possible, there is still too much slack, so I went ahead and took out a link, and had to twist the rear hub all the way forward, so much so that the adjuster bolts don't have enough threads sticking out to start a nut. I just tightened down the four hub bolts really good, should be fine. The chains slack is where it needs to be now, but it still rubs a bit, but not as bad. Worst case I guess I can cut that section out and weld on a piece underneath it.

 

"Worst case I guess I can cut that section out and weld on a piece underneath it."
The worst case would be for you to weld and cobble instead of buying a chain that you needed in the first place.

 

Wish it was that easy, but a new chain would do the same, the cross member is directly in line with the bottoms of both sprockets, so even a brand new chain would hit. Only way to remedy is to hack at the frame of find a way to bring the rear end up an inch.

 

its normal for the chain to slap the x member slightly when riding. You definitely need a new chain the chain has stretched so eventually its going to start skipping. I would also bet the sprockets are wore as well. Someone at some point may have put a bigger sprocket on the back at some point lowering the chain so it will come into contact more with the x member. The above parts are cheap on ebay.