I want to thank everyone for their responses and recommnedations. I
will attenpt to replace the plugs with the bolt type to determine if
there are additional issues. (first attempt willbe without removing
the motor mounts). If successful I will boat on! If not, I'll be
taking it in to a reputabile repair center and hopefully be back on the
water soon.

Again, I can't thank all of you enough!

Jeff