Carburetor Adjustment - Honda BF2D Series Manual

4)
Turn the flywheel clockwise and set the piston at top
dead center of the compression stroke. (Align the A mark
o n the flywheel w i t h the center o f the ignition coil
mounting stud bolt as shown.)
If the exhaust side opens when the mark aligns with
the end of the ignition coil installation part, turn the
flywheel one turn again and bring the mark t o the
alignment position.
5) Insert a feeler gauge between the rocker arm and valve,
and measure the valve clearance.
6) If adjustment is necessary, proceed as follows.
a. Loosen the adjusting screw lock nut and adjust the
valve clearance by turning the adjusting screw in or
out.
To increase valve clearance, screw out.
To decrease valve clearance, screw in.
b. Holding the adjusting screw with the valve adjusting
wrench, tighten the lock nut to the specified torque.
Valve clearance
TORQUE: 5.5 N-m (0.55 kgf-m, 4.0 Ibf-ft)
IN 0.06
-
0.10 m m
EX 0.09
-
0.13 m m
c. After tightening the lock nut, check the valve clearance
again.
7) Install the valve cover (P. 10-2).
8) Reinstall the removed parts in the reverse order of
removal.
6. CARBURETOR
CAUTION
Running the outboard motor for long time without
sufficient water will damage the lower unit parts.
Keep clear of moving parts.
Adjustment:
1) Run the outboard motor in an outboard test tank with the
water at least 100 m m
( 4
in) above the antiventilation
plate. Allow the engine to warm up to normal operating
temperature.
2) Stop the engine and remove the engine cover. Attach an
engine tachometer and restart the engine.
121 IGNITION COIL
/
131 FLYWHEEL
\
1
[21 FEELER GAUGE
31 ADJUSTING
Page: 25 - Honda BF2D Outboard Motors Shop Manual - http://www.ReadManuals.Com