The adjustment procedure it outlined in the manual.
Here is the link for your machine:
http://www.onlycubcadets.net/forum/s...ad.php?t=25397
I have not read that book, so if you can't find it, use this one. Procedure is the same, and I know it's in this one:
http://www.onlycubcadets.net/forum/s...ead.php?t=4644
It doesn't sound like it is out of adjustment, as much as it sounds like you still have play in the linkage somewhere. It may be both loose components, and adjustment.