9
en
Storage - Figure
14
WARNING
Fuel and its vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.
Fuel leakage and fire hazard.
When Storing Fuel Or Equipment With Fuel In Tank
Store away from furnaces, stoves, water heaters or other appliances that have
pilot lights or other ignition sources because they can ignite fuel vapors.
Do not store in vertical position with fuel tank filled above the bottom of the fuel
tank neck.
Mow N’ Stowt
Fold down the handle and tip up for storage as shown in Figure 14. See the equipment
manual for details.
Fuel System
Fuel can become stale when stored over 30 days. Stale fuel causes acid and gum
deposits to form in the fuel system or on essential carburetor parts. To keep fuel fresh,
use Briggs & Stratton Advanced Formula Fuel Treatment & Stabilizer, available
wherever Briggs & Stratton genuine service parts are sold.
There is no need to drain gasoline from the engine if a fuel stabilizer is added according
to instructions. Run the engine for 2 minutes to circulate the stabilizer throughout the fuel
system before storage.
If gasoline in the engine has not been treated with a fuel stabilizer, it must be drained into
an approved container. Run the engine until it stops from lack of fuel. The use of a fuel
stabilizer in the storage container is recommended to maintain freshness.
Engine Oil
While the engine is still warm, change the engine oil.
NOTICE: If the engine is tipped for storage, the fuel tank must not be filled above the
bottom of the fuel tank neck and the spark plug side must be up. If the engine is tipped in
any other direction, it may be difficult to start due to oil or gasoline contaminating the air
filter and/or the spark plug.
Troubleshooting
Need Assistance? Go to BRIGGSandSTRATTON.COM or call 1-800-233-3723 in USA.
Specifications
Engine Specifications
Model 128M00
Displacement 11.57 ci (190 cc)
Bore 2.687 in (68.25 mm)
Stroke 2.047 in (52 mm)
Oil Capacity 18 -- 20 oz (0.54 -- 0.59 L)
Tune-up Specifications *
Model 128M00
Spark Plug Gap 0.020 in (0.50 mm)
Spark Plug Torque 180 lb-in (20 Nm)
Armature Air Gap 0.006 - 0.010 in (0.15 - 0.26 mm)
Intake Valve Clearance 0.005 - 0.007 in (0.13 - 0.18 mm)
Exhaust Valve Clearance 0.007 - 0.009 in (0.18 - 0.23 mm)
* Engine power will decrease 3.5% for each 1,000 feet (300 meters) above sea level and
1% for each 10 F(5.6 C) above 77 F(25 C). The engine will operate satisfactorily at
an angle up to 15. Refer to the equipment operator ’s manual for safe allowable
operating limits on slopes.
Common Service Parts n
Service Part Part Number
Air Filter, High Capacity 491588, 5043
Air Filter Pre-cleaner, Flat 493537, 5064
Oil -- SAE 30 100005
Advanced Formula Fuel Treatment &
Stabilizer
100120, 100117
Resistor Spark Plug 591868
Spark Plug Wrench 89838, 5023
Spark Tester 19368
Fuel Filter 298090, 5018
n We recommend that you see any Briggs & Stratton Authorized Dealer for all
maintenance and service of the engine and engine parts.
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