Flywheel Identification - Briggs & Stratton Twin Cylinder L-Head Repair Manual

7
WHITE LEAD
(LIGHTS)
WHITE
CONNECTOR
BLACK
LEAD
(LIGHTS)
RED
LEAD
(BATTERY)
REGULATOR
RECTIFIER
• 16 amps AC from stator to regulator-rectifier. Two
black leads from stator.
• Yellow connector with two pin terminals.
• Two yellow leads to regulator-rectifier.
• One red lead from regulator-rectifier to white
connector (regulated, 8 amps + DC).
• One black lead from regulator-rectifier to white
connector (unregulated, 8 amps – DC).
• Quad circuit system uses the same stator as the
10, 13 and 16 amps regulated system.
• Alternator output is determined by the flywheel
alternator magnet size.
Fig. 7 – Quad-Circuit Stator

FLYWHEEL IDENTIFICATION

Twin Cylinder Flywheels have a single ring of magnets
which provide the magnetic field for the various
alternator systems. There are three (3) sizes of flywheel
magnets. The size of the magnet determines the
alternator output, Fig. 8, 9 and 10.
7/8 X 11/16
(22 mm X 18 mm)
MAGNETS
Fig. 8 – Small Magnet
4
STATOR
ASSEMBLY
TWO
BLACK
LEADS
TWO
YELLOW
YELLOW
CONNECTOR
LEADS
1-1/16 X 11/16
(27 mm X 18 mm)
MAGNETS
Fig. 9 – Medium Magnet
1-1/16 X 15/16
(27 mm X 24 mm)
MAGNETS
Fig. 10 – Large Magnet
TWIN II Flywheels (with Nylon Fans) have either the
small or large magnets. Table 2 identifies the magnet
size to be used with a specific alternator system.
TABLE NO. 2
Alternator Small
Style Magnet
•
AC Only
•
DC Only
•
Dual Circuit
•
Tri-Circuit
•
Regulated 5 Amp
Regulated 9 Amp
•
Regulated 10 Amp
Regulated 13 Amp
Regulated 16 Amp
Quad Circuit
NOTE: Medium or large magnet flywheels should
not be used with the AC only, DC only, Dual
Circuit and Tri-Circuit alternator systems.
Medium Large
Magnet Magnet
•
•
•
•