What year is your TB. I am assuming that it is 98' to present, with concentric drive? I didn't have a problem with mine at all, but since mine is not concentric, it mounts on the frame. With the concentric drive it has to be mounted on the swing arm because the chain tension does not change through out the travel of the swing arm. So, if it is to loose, whether it be because it needs adjustment, or because it needs a couple links taken out, it would cause the problems that you describe. But if it isn't a concentric drive, and you have a concentric drive chain tensioner, it will not work properly either...

DIdn't it have instruction that came with it? It should have told where to mount the thing!!!

 

Redbullssg-> Thanks for clearing that up, looks like I was right about the operation of the 4wd(i should be, the old man owns a service manual for the sportsman) but I was off a bit on the sprockets. I did realize there has to be gears in the gearcase to drive the front end but it was after I posted that reply............insert foot in mouth now.........Also its good to know that u can buy complete sprocket sets if u want to change the ratio for more topend or more torque.

Mike M

 

the sportsman is totally another ball game... All shaft drive! Depending on the year of the Scrambler, 98 to present is shaft driven in the front, and I really don't know much about that. I do know that it works in the same way, but I dont' think that you can change the ratio with sprockets. With is one reason I went with the 97...