Honda BF20A-BF25A, BF25D-BF30D Outboard Motors Shop Manual., Page 45Get this manual
3MAINTENANCE 1ENGINE OIL
BF2OABBA
12THROTTLE LINKAGE ADJUSTMENT (TILLER HANDLE TYPE)
13SHIFT ROD ADJUSTMENT
2OIL FILTER
3GEAR OIL
4SPARK PLUGS
5VALVE CLEARANCE
14CHOKE KNOB ROD ADJUSTMENT
15CHOKE SOLENOID ADJUSTMENT (REMOTE CONTROL TYPE)
16TIMING BELT
6FUEL FILTER
7FUEL TANK STRAINER
8CARBURETOR
9CARBURETOR SYNCHRONIZATION
10ACCELERATION DEVICE1 DIAPHRAGM ADJUSTMENT
17NEUTRAL STARTER CABLE ADJUSTMENT (RECOIL STARTER TYPE)
18CRANKCASE BREATHER (BODENSEE TYPE