Can anyone help, I have a new mariner 4-stroke 4hp sail out board and after i take it on a reasonably long run i get back to find the bolt that locks the outboard from turning has shaered off! This happened twice in my first week of use. The dealer first said I was tightening it too tight, not true, just enough to stop it moving. Has anyone else had similar problems?<br /><br />Thanx, Graeme
