I have a 35HP and I think its a 76 model. I have front controls, and when I go into reverse I have to go very slow or else the engine climbs out of the water. I have checked and re-checked but I cannot find any lever or pin that can prevent this. I prefer to use my engine unlocked in the down position, but surely there should be a way of of locking it at least temporarily while reversing. I have seen never engines where I lever engages while reversing preventing the motor from lifting up. Any thoughts on how to prevent this from happening?