have a '98 90ELPTO. wanting to follow steps on the back of my can of power tune but have a question. the directions say to run in gear to normal operation temp. then says to shift into neutral and run 2/3 into carb throat at fast idle (1200 rpms). then says increase speed up to 1600 to 2000 then stall out. My delima is that my control box doesnt have a warm up lever so the only way I can increase rpms is when im in gear. how do i increase rpms with out shifting into gear? would i need to disconnect the cables and do it by hand on the powerhead or can I just back down the ramp into the water with the boat still on the trailer and just raise rpms in while in gear on he trailer?
