Honda BF35A-BF45A Outboard Motors Shop Manual., Page 314Get this manual
3DASHPOT DIAPHRAGM Adjust the dashpot diaphragm after adjusting the idle speed (see base shop manual)1) Remove the engine cover2) Remove the throttle rod from the throttle cam
121 THROTTLE ROD
3) Loosen the 16 mm torx bolts using commercially available torx bit (T30H)
1I TORX BIT T30H (Commercially available)
mm BOLT (2)
4) Disconnect the vacuum tube from the dashpot check valve