Optional Speed Sensor
1. Install the speed sensor onto the engine back plate. Align
the 2 mounting holes with the threaded back plate holes.
2. Start by hand the 2 sensor fasteners (A, Figure 193).
Tighten until fastener head makes light contact with the
sensor mounting.
193
3. Using a feeler gauge, adjust the air gap between the
sensor head and the flywheel teeth to 0.015in(0.38 mm).
4. While maintaining the specified sensor air gap, tighten
the sensor fasteners to 60 lb-in (6.8 Nm).
NOTE: DO NOT overtighten the sensor fasteners. Damage
to the sensor casing may occur.
5. Route the sensor wiring along the engine back plate (B).
The wiring will be OUTSIDE of the blower housing.
6. Connect the wire harness connector to the sensor wire
connector.
Crankshaft Position Sensor(CKP)
1. Install the crankshaft position sensor onto the crankcase
bosses above the flywheel on the cylinder 1 side of the
engine.
2. Apply a small amount of threadlocker (see
SPECIFICATIONS - Engine Fluids and Sealant
Specifications) CKP fastener threads. Start the 2 sensor
fasteners (B, Figure 194)by hand.Tighten until the
fastener head makes contact with the sensor. DO NOT
overtighten as the sensor air gap needs to be adjusted
prior to final torqueing.
194
3. Using a feeler gauge, adjust the sensor air gap to 0.010
in (0.25 mm).
4. While maintaining the specified sensor air gap, tighten
the 2 sensor fasteners to 23 lb-in (2.6 Nm).
5. Connect the wire harness connector to the crankshaft
position sensor electrical connector (A).
Engine Control Module(ECM) - EFI
Depending on the engine trim, an externally mounted ECM
may be equipped. For installation instructions, proceed as
follows:
1. Install the ECM onto the mounting bracket.
146 vanguardpower.com
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