This engine is brand new. It's a tiller. Yamaha's owner's manual says it can be trimmed to any angle you want. Unfortunately that just isn't true. There is a pressure release valve that kicks in whenever you go over 1/2 throttle and the motor slips back down to its original position. It cannot accept a trim pin because the assist piston is in the way of the lower holes. This is on a Lund 16' SSV that will have varying weight distributions in it. Very frustrating and the company is of no help. Does anyone out there own one of these and how do you cope with this problem?