[ruredy]

In side the rear is the little weight that spin around and when they get to spinning to fast it pulls back through the lever on the cable going to the engine. The spring on the cable coming from the throttle allows for this movment and lets the gov do this. by tightening up the spring you are taking away some amount of movement the gov. can pull the cable. so what your basically doing by tightening the spring is not letting or limiting the amount the gov. can effect the system.
I always adjust them to where they won't dog out but not so much that it starts hitting the rev limiter. it'll probably take a few adjustment to get it where you like it, just try not to go so far your hitting the rev limiter (it starts sputtering)