6 VanguardEngines.com
Features and Controls
Compare the illustration
1
with your engine to familiarizeyourself with the location of
various features and controls.
A. Engine Identification
Model Type Code
B. Spark Plug
C. Air Cleaner
D. Dipstick
E. Oil Filter (optional)
F. Oil Drain Plug
G. OilPressure Sensor
H. Finger Guard
I. Electric Starter
J. Rewind Starter (optional)
K. LPG/NG Mixer
L. Exhaust Manifold
M. Muffler (optional)
N. Oil Cooler (optional)
Operation
Oil capacity (see the Specifications section)
Oil Recommendations
We recommend the use of Briggs & Stratton Warranty Certified oils for best
performance. Other high-quality detergent oils areacceptable if classified for service SF,
SG, SH, SJ or higher. Do not use special additives.
Outdoor temperatures determine the proper oil viscosity for the engine. Use the chart to
select the best viscosity for the outdoor temperature range expected.
SAE 30
10W-30
Synthetic 5W-30
5W-30
°F °C
* Below 40°F(4°C) the use of SAE 30 will result in hard starting.
** Above 80°F(27°C) the use of 10W-30 may cause increased oil consumption. Check
oil level more frequently.
How To Check/Add Oil - Figure
2
Before adding or checking the oil
Place engine level.
Clean the oil fill area of any debris.
1. Remove the dipstick (A) and wipe witha clean cloth (Figure 2).
2. Fully insert the dipstick.
3. Remove thedipstick andcheck the oillevel. Itshouldbe at the top of the fullindicator
(B) on the dipstick.
4. If low, add oil slowly into the engine oil fill (C). Do not overfill. After adding oil, wait
one minute and then recheck the oil level.
5. Fully insert the dipstick.
Low Oil Protection System (if equipped)
Some engines are equipped with a low oil sensor. If the oil is low, the sensor will either
activate awarning light orstop the engine.Stop the engineand followthese steps before
restarting the engine.
Make sure the engine is level.
Check the oil level. See the How To Check/Add Oil section.
If the oil level is low, add the proper amount of oil. Start the engine and makesure
the warning light (if equipped) is not activated.
If the oil level is not low, do not start the engine. Contact an Authorized Briggs &
Stratton Dealer to have the the oil problem corrected.
Fuel Recommendations
WARNING
Missing or inoperative “fuel lock-off” valve can cause a fire or
explosion.
Do notoperate theequipment if the“fuel lock-off ” valve ismissing or inoperative.
Fuel must meet these requirements:
Use clean, dry fuel, free of moisture or any particulate material. Using fuels outside
the following recommended values may cause performance problems.
In engines set up to run on LPG, commercial grade HD5 LPG is recommended.
Recommended fuelcomposition is fuel with a minimumfuel energy of 2500BTU’s/ft
3
with maximum propylene contentof 5% and butane andheavier gas content of 2.5%
and minimum propane content of 90%.
NG or LPG engines are certified to operate on natural or liquid propane gas. The
emissions control system for this engine is EM (EngineModifications).
WARNING: The equipment on which this engine is mounted is equipped
with anautomatic safety gas“fuel lock-off” valve. Do not operate the equipment if the
“fuel lock-off” valve is missing or inoperative.
How To Add Fuel
WARNING
Fuel and its vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.
When Adding Fuel
Fill fueltank outdoors orin well-ventilated area.
Check fuellines, tank, cap, andfittings frequently forcracks or leaks.
Replace ifnecessary.
For information on refueling natural or LP gas engines, read theoperating instructions
supplied by the equipment manufacturer.
How To Start The Engine - Figure
3
Rapid retraction of starter cord (kickback) will pull hand and arm
toward engine faster than you can let go.
Broken bones, fractures, bruises or sprains could result.
WARNING
When starting engine, pull the starter cord slowly until resistance is felt and then
pull rapidly to avoid kickback.
Remove all external equipment/engine loads before starting engine.
Direct-coupled equipment components such as, but not limited to, blades,
impellers, pulleys, sprockets, etc., must be securely attached.
WARNING
Fuel and its vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.
When Starting Engine
Ensure that spark plug, muffler, and air cleaner (if equipped) are in place and
secured.
Do not crank engine with spark plug removed.
Not for
Reproduction