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PERFORMANCE CONTROL
ELECTRONIC GOVERNOR
Some V-Twin engines are equipped with the
Performance Control electronic governor system
for generator or welder applications. The electronic
governor provides more responsive governing than a
mechanical system. Engines equipped with the
Performance Control electronic governor system
have no mechanical governor components, and
cannot be retrofitted to mechanical governor engines.
Performance Control Electronic Governor Wiring Diagram
carburetor
solenoid
ALTERNATOR
AC OUTPUT
WIRES
DC OUTPUT
WIRE
REGULATOR
RECTIFIER
BATTERY
TERMINAL
-
12 VOLT BATTERY
58
WHITE
50 CYCLE – 3000
RPM LOOP
STOP
SWITCH
TERMINAL
KEY
SWITCH
2
3
4
1
5
6
SOLENOID TAB
TERMINAL
STARTER
TERMINAL
SOLENOID
+
The Performance Control electronic governor
control system consists of an electronic control
module, wiring and stop switch harness and a
throttle actuator. The control module is equipped
with an idle-down circuit for applications requiring
that feature. By cutting and removing the yellow or
red loop wire, the control module can be converted
to 50 cycle – 3000 RPM generator applications.
MODULE
*
yellow
GREY
BLACK
STOP SWITCH HARNESS
DIODE
DIODE
IGNITION COILS
* Yellow Wire – Models 290000 – 303000
Red Wire – Models 350000 – 380000
STARTER
MOTOR
IDLE
BLUE
DOWN
DEVICE
GREEN
ACTUATOR
RED
- Quick Links:
- Troubleshooting
- Fuel Systems and Carburetion
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Troubleshooting
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Do you have a question about the OHV V-Twin and is the answer not in the manual?
Questions and answers
vanguard 18 HP Twin is running too rich and manual poorly illustrated and described
To troubleshoot a Vanguard OHV V-Twin 18 HP engine running too rich, follow these steps:
1. Check Air Filter – A clogged air filter restricts airflow, causing a rich mixture. Clean or replace the air filter if necessary.
2. Inspect Carburetor – Ensure the carburetor is clean and free of debris. If needed, disassemble and clean it, replacing old gaskets and seals.
3. Examine Fuel Solenoid – The fuel shut-off solenoid controls fuel flow. Ensure it is functioning correctly and not stuck open.
4. Check Main Jets – Remove and inspect the main jets for blockages or excessive wear that could alter fuel flow.
5. Verify Choke Operation – Ensure the choke control is properly adjusted and not stuck in a closed or partially closed position.
6. Monitor Oil Type – Using the correct oil viscosity helps maintain proper engine operation. Avoid multi-viscosity oils in high temperatures if they increase oil consumption.
7. Inspect Cooling System – Overheating can affect air-fuel mixture. Clean the cooling system to prevent airflow restrictions.
If the issue persists, further carburetor adjustments or professional servicing may be required.
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