Not for
Reproduction
11
Stopping the Water Pump
Figure
12
1. Move engine speed lever (
A
) to SLOW (
) position.
WARNING
Fuel and its vapors are extremely
flammable and explosive which could
cause burns, fire or explosion resulting in
death or serious injury.
• DO NOT stop engine by moving choke lever to
CHOKE position ( ).
2. Push on/off switch (
D
) to OFF (0) position.
3. Turn fuel shutoff (
C
) to OFF (0) position.
Drain and Flush Water Pump
Figure
13
1. Disconnect and drain suction and discharge hoses.
2. Remove drain plug (
13,
A
) at bottom of pump.
3. Remove priming plug from top of pump and flush
internal components of pump with clean water (
15
).
4. Replace both plugs and finger tighten.
Maintenance
Maintenance Schedule
Follow the hourly or calendar intervals, whichever
occurs first. More frequent service is required when
operating in adverse conditions noted below.
First 5 hours
Change oil
Every 8 hours or daily
Check oil level
Clean debris
Every 25 hours or daily
Clean engine air filter
Every 50 hours or annually *
Change oil *
Clean and inspect spark arrester
Replace air filter *
Annually
Replace spark plug
Clean air cooling system *
Clean any sludge buildup inside pump
*Service sooner when operating under dirty or dusty
conditions.
General Recommendations
Regular maintenance will improve the performance
and extend the life of the water pump. See any
authorized Briggs & Stratton dealer for service.
The water pump’s warranty does not cover items that
have been subjected to operator abuse or negligence.
To receive full value from the warranty, the operator
must maintain the water pump as instructed in this
manual.
Some adjustments will need to be made periodically to
properly maintain your water pump.
All service and adjustments should be made at least
once each season. Follow the requirements in the
Maintenance Schedule chart above.
NOTICE
Once a year you should clean or replace
the spark plug and clean or replace the air filter. A
new spark plug and clean air filter assure proper fuel-
air mixture and help your engine run better and last
longer.
Water Pump Maintenance
Maintenance consists of keeping the water pump
clean. Store the unit in a clean dry environment where
it will not be exposed to excessive dust, dirt, moisture
or any corrosive vapors. Engine cooling air slots must
not become clogged with dirt, leaves or any other
foreign material.
NOTICE
Do Not use a garden hose to clean engine.
Water can enter engine fuel system and cause problems.
Cleaning
Daily or before use, look around and underneath
water pump for signs of oil or fuel leaks. Clean
accumulated debris from inside and outside water
pump. Keep linkage, spring and other engine controls
clean. Keep area around and behind muffler free from
any combustible debris. Use low pressure air (not to
exceed 1.7MPa (25 psi)) to blow away dirt. Inspect
cooling air slots and opening on water pump. These
openings must be kept clean and unobstructed.
Engine parts should be kept clean to reduce the risk of
overheating and ignition of accumulated debris.
• Use a damp cloth to wipe exterior surfaces clean.
• Use a soft bristle brush to loosen caked on dirt or oil.
• Use a vacuum cleaner to pick up loose dirt and debris.
Remove silt and sludge buildup in pump body:
• Open priming plug and remove drain plug.
• Flush internal components of pump with clean water.
NOTICE
Improper treatment of water pump could
damage it and shorten its life.
• DO NOT insert any objects through cooling slots.
15