Help!! Have a 1984-85 50hp Yamaha Electric Blend which I want to adjust the timing on. I have a "Clymer" Manual but it does not address the black box with an indicator pointer on the motor. There is a screw with a locknut that seems to adjust with the carburator linkage. On the front of the black box is a pointer on an adjustable stem. Looking for a procedure on how to set this system! What part to adjust for setting?
