Honda BF15D - Cylinder Head and Valve Service

BF15D-BF20D
1. CYLINDER HEAD REMOVAL
Cylinder head assembly can be serviced with the engine
installed on the frame.
1) Remove the oil filler cap and oil drain bolt, and drain the
engine oil into a suitable container (P.
3-3).
2) Remove the following pars:
- engine cover (P. 5-1).
- left engine under cover (P. 5-2).
- right engine under cover (P. 5-3).
- recoil starter (P. 7-2).
starter case B
3) Pull out the connectors and wires from the holder on the
4) Pull off the breather tube from the clamp on the starter
case
B and remove it. Disconnect the breather tube from
the cylinder head cover.
5) Remove the starter case
B with the drain tube attached
by disconnecting the drain tubes from the lower setting
holes.
6) Remove the silencer and carburetor (P. 6-2) and fuel
pump (P. 6-17).
7) Disconnect the thermo sensor connector and spark plug
caps, and remove the spark plugs.
PI [2] WIRES
11 1
STARTER CASE B
r31
CONNECTORS
r41
HOLDERS
R
PI
DRAIN
TUBES BREATHER
I [l] THERMO SENSOR
[2] SPARK PLUG (2)