Ignition Coil
Ignition Coil - Removal
1. Disconnect the ignition coil electrical connector (
A
,
Figure 51) by first pulling up on the locking tab and
then depressing the connector tab to release the
connector.
51
2. Remove the upper ignition coil heat shield/air cleaner
fastener (
A
, Figure 52).
52
3. Remove the lower ignition coil fastener (
B
4. Remove the ignition coil heat shield (
C
) and set aside.
5. Remove the ignition coil (
D
) from the spark plug by
pulling the ignition coil and boot up and away from the
spark plug. Set aside.
Ignition Coil - Installation
1. Install the ignition coil (
D
, Figure 51) onto the spark plug
by pressing firmly until the boot is seated.
2. Install the ignition coil heat shield (
C
) on top of the
ignition coil. Make sure the mounting holes align with the
holes in the cylinder head.
3. Start by hand the lower ignition coil fastener (
B
). Tighten
to
95 lb-in
(10.7 Nm).
4. Start by hand the upper ignition coil/air cleaner fastener
(
A
, Figure 52). Tighten to
95 lb-in
(10.7 Nm).
5. Install the ignition coil electrical connector (
A
, Figure
51). Press the harness connector onto the ignition coil
connector until it "clicks" into place. Press the locking tab
down until fully seated.
Spark Plug
Spark Plug - Removal
1. See
Ignition Coil - Removal
.
2. Clean any dirt and debris that may have settled around
the spark plug and spark plug bore. This prevents dirt
and debris from falling into the cylinder.
3. Using a 5/8 inch spark plug socket, remove the spark
plug (
A
, Figure 53) from the cylinder head bore.
53
4. Inspect the spark, replace as necessary.
Spark Plug - Installation
1. Make sure the spark plug threads and the cylinder
head bore threads are clean and free from dirt and
contamination.
2. Start by hand the spark plug (
A
cylinder head bore. Turn the spark plug CLOCKWISE 3-4
turns to ensure correct thread engagement.
96
Not for
Reproduction
Summary of Contents for 25E300
Page 1: ...Vanguard EFI Diagnostics and Repair 25E300 REPAIR MANUAL N o t f o r R e p r o d u c t i o n...
Page 18: ...Model 25E300 EFI Component Locations 19 N o t f o r R e p r o d u c t i o n...
Page 26: ...Speed vs Voltage Table 8 27 N o t f o r R e p r o d u c t i o n...
Page 61: ...25E300 Wiring Harness Diagram 62 vanguardpower com N o t f o r R e p r o d u c t i o n...
Page 62: ...63 N o t f o r R e p r o d u c t i o n...
Page 88: ...Model 25E300 Fuel Hose Location and Routing Tankless 89 N o t f o r R e p r o d u c t i o n...
