Briggs & Stratton 625, 600, 650 User Manual

Operator’s Manual

Model 120000

Quantum 600 Series

625 Series
650 Series
675 Series

BRIGGSandSTRATTON.com

Quick Start Guide

on page 4

ECopyright Briggs & Stratton Corporation

Milwaukee, Wisconsin 53201 U.S.A.

Form No. 277039-9/06

Printed in U.S.A.

Safety References

The safety alert symbol is used to identify safety
information about hazards that can result in personal
injury. A signal word (DANGER, WARNING, or
CAUTION) is used with the alert symbol to indicate the
likelihood and the potential severity of injury. In addition,
a hazard symbol may be used to represent the type of
hazard.

DANGER indicates a hazard which, if not

avoided, will result in death or serious
injury.

WARNING indicates a hazard which, if not

avoided, could result in death or serious
injury.

CAUTION indicates a hazard which, if not

avoided, might result in minor or moderate
injury.

CAUTION, when used without the alert

symbol, indicates a situation that could result
in damage to the engine.

This manual contains safety

information to make you aware of
the hazards and risks associated with engines.
Because Briggs & Stratton does not necessarily
know what equipment this engine will power, it is
important that you read the instructions and the
instructions for the equipment this engine powers.

SYMBOLS ASSOCIATED

WITH THIS ENGINE:

Read

Fire

Explosion

Kickback

Hot Surface

Toxic F u mes

Moving Parts

Shock

Hazardous
Chemical

Operating
Manual

Oil

Fuel

Fuel Shutoff

On Off

Run

Choke

Stop

Table of Contents

Safety 2. . . . . . . . . . . . . . . . . . . . . . . . . . .

Features 3. . . . . . . . . . . . . . . . . . . . . . . . . .

QuickStart 4. . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 6. . . . . . . . . . . . . . . . . .

READYSTARTE 7. . . . . . . . . . . . . . . . . . .

Starting 8. . . . . . . . . . . . . . . . . . . . . . . . . .

Operating & Stopping 9. . . . . . . . . . . . .

Oil 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fuel 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fresh StartE Fuel Cap 12. . . . . . . . . . . .

Specifications 13. . . . . . . . . . . . . . . . . . .

Maintenance 14. . . . . . . . . . . . . . . . . . . . .

Storage & Service 17. . . . . . . . . . . . . . . .

Warranty Information 18. . . . . . . . . . . . .

Slow Fast

WARNING

Briggs & Stratton does not approve or authorize
the use of these engines on 3-wheel All Terrain
Vehicles (ATVs), motor bikes, fun/recreational
go-karts, aircraft products or vehicles intended for
use in competitive events. Use of these engines in
such applications could result in property damage,
serious injury (including paralysis), or even death.

WARNING

The engine exhaust from this product contains
chemicals known to the State of California to cause
cancer, birth defects, or other reproductive harm.

CAUTION

This engine is shipped from Briggs & Stratton
without oil. If you start the engine without oil, the
engine will be damaged beyond repair and will
not be covered under warranty.

Know Your Engine

Fuel fill

Choke

(if equipped)

Primer

Rewind/Starter

handle

Oil cap &

Oil dipstick

Side oil drain plug

(if equipped)

Muffler

Spark plug

Front
view

Speed

control lever

Air cleaner

Back
view

3

This manual contains safety information to make you aware of the hazards and risks
associated with engines. Read the Operating Manual before starting your engine.

1

ADD OIL

WHAT KIND?

High quality SAE 30 motor oil.

HOW MUCH?

To FULL line on dipstick.
Engine holds about 20 oz. (0.61l).

HOW?

Unscrew and remove oil cap.
Pour in oil. Replace cap.

SPECIAL CONCERNS?

Do not overfill.
Do not tip engine.

See page 10 for details.

432

FULL

WIPE DIPSTICK.
REPLACE DIPSTICK
AND TIGHTEN CAP.
REMOVE DIPSTICK
TO READ LEVEL.

1

2 3 4

ADD GAS

WHAT KIND?

Unleaded, 85 octane or higher.

HOW MUCH?

Fill to one inch below top of fuel fill neck.

HOW?

Remove gas cap. Pour in gas. Replace cap.

SPECIAL CONCERNS?

Fuel equipment outdoors. If fuel spills, wait
until it evaporates before starting engine.

See page 12 for details.

WARNING

Starting engine creates sparking.
Gasoline and its vapors are
extremely flammable and
explosive. Fire or explosion can
cause severe burns or death.

If fuel spills, wait until it
evaporates before starting
engine.

DO NOT use pressurized starting
fluids.

4

If ReadyStart™ go to step 4.

1 2 3 4

PUSH PRIMER

HOW MANY TIMES?

Press 5 times the FIRST TIME you start engine.
For all future starts, press

HOW?

Locate primer bulb. Press with finger. Wait two
seconds between each press.

SPECIAL CONCERNS?

Pressing primer too many times can flood
engine with gas. A flooded engine will not start.
See Troubleshooting section.

3 times.

1 4

2 3

PULL STARTER HANDLE

HOW?

Stand behind equipment.
Close bail, or operator control bar, on
equipment with this feature. If you do not keep
bail held against equipment handle, engine will
not start.
Slowly pull cord until you feel resistance, then
pull quickly.

SPECIAL CONCERNS?

If speed control equipped, start in FAST position.
Also, see warning at right.

If electric start equipped see page 8.

To Stop Engine −

Let go of bail, or operator control bar, which
activates brake and stops engine from running.

For complete starting instructions
see page 8.

WARNING

Rapid retraction of starter cord
(kickback) will pull hand and arm
toward engine faster than you can
let go. To avoid kickback, slowly
pull the cord until you feel
resistance, then pull rapidly.

Broken bones, fractures, bruises or
sprains could result.

Rotating parts can contact or
entangle hands, feet, hair, clothing,
or accessories.

Traumatic amputation or severe
laceration can result.

Need assistance? 1-800-233-3723

(USA and Canada ONLY, Pre-recorded message.)

www.briggsandstratton.com

5

Troubleshooting

Starter Handle will not pull.

r The bail, operator control bar, is not

engaged which releases the brake from
the flywheel allowing the engine to turn
over.

r Place equipment on flat level surface.

• Ensure all external equipment/engine loads are removed

before starting engine. Direct coupled equipment
components must be securely attached such as, but not
limited to, blades, impellors, pulleys, sprockets, etc.

WARNING

Engine will not start.

r Oil Level is OVER FULL

mark on dipstick.

• Drain excess oil from engine to bring level to
FULL mark on dipstick.

• Check air cleaner filter for oil saturation.
If saturated, clean or replace filter.

r Out of Fuel

• Add gasoline.

• Prime engine.

r Engine Flooded

• Set choke (if equipped) to OPEN/RUN
position, place throttle (if equipped) in FAST
and continue to pull starter handle.

r Spark Plug Fouling

• Remove spark plug. Clean, check gap,
replace. See Maintenance section.

CAUTION

DO NOT OVERFILL OIL.
Overfilling may cause
smoking, hard starting, spark
plug fouling or oil saturation of
air filter.

WARNING

• Ensure fuel cap, and air
cleaner are in place
before starting engine.

• Before refueling − turn
engine OFF and let
engine cool at least 2
minutes before
removing gas cap.

• Check fuel lines, tank,
cap, and fittings for
cracks or leaks.
Replace if necessary.

• Do not crank engine
with spark plug
removed.

Engine is Smoking or Running Rough.

r Engine may have been

tipped during transport.

• Check for fouled spark plug.

• Check air cleaner filter for oil saturation.

If saturated, clean or replace filter.

6

CAUTION

If engine is tipped to transport
equipment, to remove debris, to
drain oil, etc., keep the spark

plug side of engine up.

KEEP SPARK PLUG
UP