Honda BF20A-BF25A, BF25D-BF30D Outboard Motors Shop Manual., Page 219Get this manual
2ACCELERATION DEVICEDIAPHRAGM ASSEMBLY Adjust the acceleration deviceldiaphragm assembly after adjusting the idle speed (P3-7 of the base shop manual)1) Loosen the 16 torx bolts using the special tools
TOOLS: Torx bit handle Screw T30H
07703-0010300 07703-0010600
2) Remove the throttle rod from the throttle cam3) Move the throttle cam and hold it in position where it does not contact the throttle cam roller
1 THROTTLE CAM ROLLER 1