I have a vibration in my 2001 s22. I am a new owner and I am working through a vibration. I had the prop tuned and balanced made a small differance. vibration is still there any help thanks
I agree with Pete (no surprise there) - it "could" be your drive shaft but the more likely culprits are "bad" gas (not quality premium gas) or a bad plug(s)
I remember a thread way back about someone chasing down a vibration - even going so far to replace the trans to find out that a cylinder was misfiring - changing plugs solved the issue
Plugs for our boats aren't cheap but if you stay away from marina gas and feed it the good stuff you shouldn't have to do it very often
As long as you didn't hit anything or notice anything out of whack where the shaft comes into the hull it may not be alignment related at all. Is your prop shaft packing leaking faster than it should?