OldSkool
Active Member
- May 8, 2010
- 4,360
- Boat Info
- restored 1976 SRV200
- Engines
- 188 Mercruiser I/O
I agree with Frank and the rest about the prop. It is possible to have an intermittent vibration due to a slightly bent prop or shaft. Much like a tire out of balance can find a speed in which it either vibrate or run smooth.