New to me boat with a 60HP 1990 Johnson: When I start the engine (on muffs) it runs at 2000rpm and will not rev down (it will rev up). I was told the carbs were rebuilt shortly before I got it but I don't know if the boat was run after the rebuild. I loosened the throttle cam flollower and checked that all three throttle plates were closed, however, even with all throttle plates closed it still runs at the high speed. Since the carb cam does not engage until the motor is put into gear, is there another adjustment to make? (there is a threaded adjustment screw on the throttle cable, and I see two large springed screws above and below the pivot point of a lever that the cable attaches to).
I grabbed a Seloc manual to get me going, but I have not found this problem in it. I'll be ordering the facotry manual.
Any help would be appreciated.