24-09-12, 07:45 PM
I wouldn't just tack weld it! I was too cautious the first time I welded mine on and the small amount of side-to-side free play the sprocket had was enough to break the weld after a few hundred miles. (I know there shouldn't have been any free play, but the thread was so knackered I found it difficult to get the nut tight enough prior to welding.)
After that I did a more thorough job and it stayed put. Come chain change time it's a simple matter to cut through the weld with an angle grinder and replace the sprocket. I eventually changed C&S that way three times in that engine's lifetime.
![[Image: sprocketnut.jpg]](http://i1139.photobucket.com/albums/n543/nerdybiker/sprocketnut.jpg)
After that I did a more thorough job and it stayed put. Come chain change time it's a simple matter to cut through the weld with an angle grinder and replace the sprocket. I eventually changed C&S that way three times in that engine's lifetime.