Then I think I'm having my share and yours. the stock kit tensioner froze so i bought the bearing one. It has done everything but work right. I had straighted it out on the frame this time but it wobbled and tossed the chain. I removed the old bent washer and I put on a straight washer it tracked fine in the rolling test. I rolled onto the road during a long break in the traffic (im no fool) and it popped the chain. there were other times I didn't mention this morning so I just put the bike away. When the half link comes in this week I'll set the motor chain and do what i can with the bike chain. after I reset the engine, the bike chain was so loose not even the tensioner would keep it tight so I had to take a link out when I did that the darn thing was tight enough but the drive chain is so loose it is a mess now. I'm not going to break that drive chain again it's what keeps breaking my chain tools. I'm just gonna put the half link in and adjust the chains with it.Whenever one of my tensioners runs crooked, I bend it a little so that it rolls inline with the chain... & I also make sure that it "feeds" the chain straight onto the rear sprocket then I pin it in place with a small sheetmetel screw.
Maybe I've just been really lucky, but I've had very few problems with the chains...
Tensioners have always been a bane to my existence. When I can adjust the rear wheel for the drive chain it works great when I have to use a tensioner it goes crazy.