General Information
3.2 — P
S
RODUCT
Model
Flow Rate (GPM / LPM)
Suction/Discharge Diameter (Inches/mm)
Total Head (feet/meter)
Suction Head (feet/meter)
Suction Hose Length (feet/meters)
Discharge Hose Length (feet/meters)
Engine Displacement (Cubic Inch/cc)
Spark Plug Type
Spark Plug Gap (Inches/mm)
Fuel Capacity (Gallon/Liters)
Oil Capacity (Oz/Liters)
Low Oil Shut Down System
On/Off Switch
3.3 — E
MISSIONS
The U.S. Environmental Protection Agency (and Califor-
nia Air Resource Board for equipment certified to CA
standards) requires that this engine comply with exhaust
and evaporative emission standards. Locate the emis-
sions compliance decal on the engine to determine what
standards the engine meets, and to determine which
emissions warranty applies. The engine is certified to
meet the applicable emission standards on gasoline. It is
important to follow the maintenance specifications in the
Maintenance section to ensure that the engine complies
with the applicable emission standards for the duration of
the product's life. This engine utilizes lean carburetion
settings and other systems to reduce emissions. Tamper-
ing with or altering the emission control system may
increase emissions and may be a violation of Federal or
California Law. Acts that constitute tampering include but
are not limited to:
• Removal or alteration of any part of the intake, fuel, or
exhaust systems
• Altering or defeating the governor linkage or speed-
adjusting mechanism to cause the engine to operate
outside its design parameters
Water Pump
PECIFICATIONS
CW15K
ST20K
80/303
158/598
1.5/40
80/24.4
108/32.9
26/7.9
26/7.9
10/3.1
12/3.7
25/7.6
25/7.6
4.8/79
12.7/208
E6RTC or
F6RTC or
Equivalent
Equivalent
0.028-0.031 / 0.70-0.80
0.4/1.5
3/11.5
13.5/0.4
20/0.6
No
Yes
I
NFORMATION
If you are aware of any of the following symptoms, have
your engine inspected and repaired by your servicing
dealer:
• Hard starting or stalling after starting
• Rough idle
2/50
• Misfiring or backfiring under load
• Afterburning (backfiring)
• Black exhaust smoke or high fuel consumption
3.4 — H
IGH
The fuel system on this engine may be influenced by
operation at higher altitudes.
3.5 — U
NPACKING
1. Remove the loose parts, kits, and inserts included
with water pump.
2. Open carton completely by cutting each corner from
top to bottom.
Yes
3. Ensure you have all included items prior to assembly.
• Main Unit
• Hose Kit
- Suction Hose
- Discharge Hose
- Hose Filter
- Hose Nut (2)
- Hose Clamp (3)
- Hose Barb (2)
- Sealing Ring (2)
• Loose Parts
- Oil Bottle
- Funnel
- Spark Plug wrench
- Operator's Manual
- Owner's Registration Card
• Wheel Kit (ST20K only)
- 8 inch wheel (2)
- Stub Axle (2)
- Washer (2)
- Cotter Pin (2)
- Handle
- Foot Bracket (2)
- M8x40 Flange Bolt (6)
- M8 Flange Nut (4)
4. If you are missing any items from your carton, please
call Generac Customer Service at 1-888-436-3722.
When calling for assistance, please have the model
and serial number from the data tag available.
5. Fill out and send in registration card. Write Model
number, Serial number & date of purchase in the
table located in the "Where to Find Us" section.
A
O
LTITUDE
PERATION
9