I have a 1987 220 Laser that will not take off with a conventional style prop attached. If I put a chopper prop on it, I can get it to plane out, but it takes a little bit. Once I get onto plane with the chopper prop, the boat will pull hard and run well (speedo says 65mph). I have tried...
Why do you have to change the motor as well as all other parts to make this swap? Is the block and crank drilled or cast differently than the Merc.? Is the Yamaha 5.7 an altered Chevy like the Merc.? If so will the Merc. parts bolt onto the back of this engine to make a hybrid? As I have...
