I obtained a Briggs & Stratton five horse power outboard motor., I come to find out that these motors do not have shear pins in them. It has forward and reverse, what I need to know, is what happens should I hit a rock or log in the water? Will my prop break or what will happen to this motor without a shear pin? This has been worrying me, for I don't know what was going to happen should I hit something in the water. Can anyone help and explain to me what will happen should I get something in the water with my prop, will my prop break words or something else that's going to break in my motor? I like to take this time to thank anyone who may be able to help me out and let me know what is going to happen should I hit something. Thanks