Service Manual

5-4

Table of Contents

Twin Cylinder Engine Service Manual

February 2017 - Digital Edition

ELECTRICAL SYSTEM AND COMPONENTS

Charging System

Introduction: The charging system components include the stator, voltage regulator with the wiring harness, and

ywheel (Figure 1).

Flywheel: Located under the blower shroud and mounted to the upper end of the crankshaft, made of cast iron

and permanent magnets (two exterior and twenty interior). Magnets create magnetic eld for ignition coils to

create spark, and stator to create AC voltage.

Stator (Alternator): Located under the ywheel and mounted to the top of the engine block. Made of 18 copper

wire windings over an iron core, it creates AC voltage as the ywheel magnets rotate around the windings.

Voltage Regulator: Mounted to the dipstick tube, converts AC voltage to DC voltage and limits maximum DC

voltage output. It also contains the engine wire harness.

Engine Wire Harness: Located under the blower shroud, it is attached to the intake manifold with several

plastic ties. The fuel shut-off solenoid connects to the harness above the intake manifold. There are two ground

terminals;

1. At the sump cover below the oil lter and

2. At the intake manifold bolt above the #2 cylinder.

The harness connects the following engine components to the chassis harness; fuel shut-off solenoid, ignition coil

grounds, and the voltage regulator (Figure 3).

Figure 3

Wire Colors:

B: Black

G: Green

Y: Yellow

Y & G