Spark Test; Ignition System Troubles - Honda BF2D Series Manual

SPARK TEST
Do not pull the recoil starter rope while touching the
high tension wire. High voltage generates, which is
very dangerous. Be sure t o ground the spark plug and
hold the plug cap t o perform the spark test.
Gasoline is extremely flammable and explosive. If
ignited, gasoline can burn you severely. Be sure there
is no spilled fuel near the engine.
Unburnt gas can ignite if it is left in the cylinder. Be
sure t o drain the carburetor thoroughly before spark
test, and release the unburnt gas from the cylinder by
pulling the recoil starter several times.
1) Remove the engine cover (P. 4-1) and remove the spark
plug cap. Clean any dirt from around the spark plug
base, then remove the spark plug.
2) Loosen the carburetor drain screw to drain the carbure-
tor thoroughly. Pull the recoil starter several times to
release the unburnt gas from the cylinder.
3) Install the spark plug in the plug cap.
4) Make sure that the emergency stop switch clip is
engaged with the emergency stop switch.
5) Ground the side electrode against the recoil starter
mounting cap nut as shown, pull the recoil starter and
check to see if sparks jump across the electrodes.
c. IGNITION SYSTEM
1. Measure the spark plug gap and perform
the spark test.
Plug gap:
0.6
-
0.7 mm (0.024
-
0.028 in)
No spark
3. Check the insulation of the high tension
-
Damaged
Replace the ignition coil (P. 8-1).
wire for damage causing current leakage.
insulation
2. Check again after replacing with a new
spark plug.
No spark
v
Faulty ignition coil.
Replace the ignition coil.
I
Sparks
I
No spark
2- 1
4
Page: 18 - Honda BF2D Outboard Motors Shop Manual - http:llwww.ReadManuals.Corn
F a u b spark plugm
Replace the spark plug.
4. Disconnect the black wire from the emer-
-
sparks
-
gency stop switch and retest.
Faulty emergency stop switch.
Replace the emergency stop switch (P. 73-21.
I