Features And Controls; Oil Recommendations; Fuel Recommendations - Briggs & Stratton 90000 300 Serie Manual Del Operario

Features and Controls

1
Compare the illustration with your engine to familiarize yourself with the location of
various features and controls.
A. Engine Identification
Model Type Code
B. Spark Plug
C. Primer
D. Fuel Tank and Cap
E. Air Cleaner
F. Starter Cord Handle
G. Dipstick
H. Oil Drain Plug
I. Muffler
Muffler Guard (if equipped)
Spark Arrester (if equipped)
J. Throttle Control (if equipped)
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 are acceptable 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.
°F
* 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.
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Clean the oil fill area of any debris.
•
1. Remove the dipstick (A) and wipe with a clean cloth (Figure 2).
2. Insert and tighten the dipstick.
3. Remove the dipstick and check the oil level. It should be at the FULL mark (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. Replace and tighten the dipstick.

Fuel Recommendations

Fuel must meet these requirements:
Clean, fresh, unleaded gasoline.
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A minimum of 87 octane/87 AKI (91 RON). High altitude use, see below.
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Gasoline with up to 10% ethanol (gasohol) or up to 15% MTBE (methyl tertiary
•
butyl ether) is acceptable.
CAUTION: Do not use unapproved gasolines, such as E85. Do not mix oil in gasoline or
modify the engine to run on alternate fuels. This will damage the engine components and
void the engine warranty.
To protect the fuel system from gum formation, mix a fuel stabilizer into the fuel. See
Storage. All fuel is not the same. If starting or performance problems occur, change fuel
providers or change brands. This engine is certified to operate on gasoline. The
emissions control system for this engine is EM (Engine Modifications).
6
High Altitude
At altitudes over 5,000 feet (1524 meters), a minimum 85 octane/85 AKI (89 RON)
gasoline is acceptable. To remain emissions compliant, high altitude adjustment is
required. Operation without this adjustment will cause decreased performance,
increased fuel consumption, and increased emissions. See a Briggs & Stratton
Authorized Dealer for high altitude adjustment information.
Operation of the engine at altitudes below 2,500 feet (762 meters) with the high altitude
kit is not recommended.
How To Add Fuel - Figure 3
Gasoline and its vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.
When Adding Fuel
Turn engine off and let engine cool at least 2 minutes before removing the fuel cap.
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Fill fuel tank outdoors or in well-ventilated area.
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Do not overfill fuel tank. Fill tank to approximately 1.5 inches (38 mm) below top of
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neck to allow for fuel expansion.
Keep gasoline away from sparks, open flames, pilot lights, heat, and other ignition
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sources.
Check fuel lines, tank, cap, and fittings frequently for cracks or leaks. Replace if
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necessary.
If fuel spills, wait until it evaporates before starting engine.
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1. Clean the fuel cap area of dirt and debris. Remove the fuel cap (A, Figure 3).
2. Fill the fuel tank (B) with gasoline. To allow for expansion of the gasoline, do not fill
above the bottom of the fuel tank neck (C).
3. Reinstall the fuel cap.
°C How To Start The Engine - Figure 4
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.
When starting engine, pull the starter cord slowly until resistance is felt and then pull
•
rapidly to avoid kickback.
Gasoline 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, fuel cap and air cleaner are in place and secured.
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Do not crank engine with spark plug removed.
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If engine floods, set choke (if equipped) to open/run position, move throttle (if
•
equipped) to fast position and crank until engine starts.
WARNING
Engines give off carbon monoxide, an odorless, colorless, poison gas.
Breathing carbon monoxide can cause nausea, fainting or death.
Start and run engine outdoors.
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Do not start or run engine in enclosed area, even if doors or windows are open.
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CAUTION: This engine was shipped from Briggs & Stratton without oil. Before you start
the engine, make sure you add oil according to the instructions in this manual. If you
start the engine without oil, it will be damaged beyond repair and will not be covered
under warranty.
1. Check the engine oil. See the How To Check/Add Oil section.
2. Make sure equipment drive controls, if equipped, are disengaged. See the equipment
manual for location and operation of these controls.
3. Move the throttle control (A, Figure 4), if equipped, to the fast
Operate the engine in the fast
4. When starting a new engine for the first time, firmly push the red primer (B) five
times. Then for all future starts, push the primer three times (Figure 4).
Note: If engine runs out of fuel or has been stored for an extended period of time, it
may be necessary to prime 5 times.
Note: Priming is usually unnecessary when restarting a warm engine.
Note: If you push the primer too many times, excessive fuel will flood the engine and
it will be difficult to start.
5. If the product is equipped with an engine stop lever (C), hold the engine stop lever
against the handle (Figure 5).
WARNING
WARNING
WARNING
position.
5
position.
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