1997 Johnson/Evinrude EU 25, 35 HP 3-Cylinder outboards Service Manual, Page 173Get this manual
COA2674
Twist-Grip Throttle Service
Disassembly
m 1Using OMC Twist-Grip Throttle Remover, PIN 390767, and remove the grip by depress the grip detentsTighten screw
pulling grip and turning the idle adjustment knob []] 2Remove the helix halves
clockwise
rollersand guides
3Pull the throttle pin out of the cable4Remove throttle end cap from inner handle