Where can I get a diagram/manual for the lower unit of a 1989 120HP Evinrude. I need to replace the impeller & water pump housing. Does the shifter have to be in gear when dropping the unit?. What is the shift rod lenght? Thanks Bob.
How do I increase the horse power on a 2000 Mercury Optimax 115hp? Where can I get the parts (computer chips etc.) necessary to do this? Is this an electronic/computer chip job? Thanks.
