Pacific hydrostar 95977 User Manual

Pacific hydrostar 95977

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2” PORTABLE

CLEAR WATER PUMP

With 6.5 HP Gas Engine

Model

95977

ASSEMBLY AND OPERATION INSTRUCTIONS

Visit our website at: http://www.harborfreight.com

Read this material before using this product.

Failure to do so can result in serious injury.

SAVE THIS MANUAL.

Copyright

©

2007 by Harbor Freight Tools

®

. All rights reserved. No portion of this manual or any artwork

contained herein may be reproduced in any shape or form without the express written consent of

Harbor Freight Tools. Diagrams within this manual may not be drawn proportionally. Due to continuing

improvements, actual product may differ slightly from the product described herein. Tools required for

assembly and service may not be included.

For technical questions or replacement parts, please call 1-800-444-3353.

Manual Revised 10c

Using an engine indoors CAN KILL YOU IN

MINUTES.

Engine exhaust contains carbon monoxide.

This is a poison you cannot see or smell.

NEVER use inside

a home or garage,

EVEN IF doors and

windows are open.

Only use OUTSIDE

and far away from

windows, doors, and

vents.

Table of Contents

Questions and Answers:

V
Valerie YuJul 31, 2025
Why Pacific hydrostar Water Pump engine knocks?
- J
  joshua95Jul 31, 2025
  An engine knock in your Pacific hydrostar Water Pump could be due to old or low-quality gasoline; in this case, fill the fuel tank with fresh 87+ octane unleaded gasoline. Another cause could be an overloaded engine; make sure you do not exceed the equipment’s load rating. Finally, it could be related to incorrect spark timing, deposit buildup, a worn engine, or other mechanical problems, which would require a qualified technician to diagnose and service the engine.
R
Robert BennettAug 9, 2025
What to do if Pacific hydrostar Water Pump engine stops suddenly?
- D
  David DelgadoAug 9, 2025
  If your Pacific hydrostar Water Pump engine stops suddenly, it could be due to several reasons. Check if the oil level is low and fill it to the proper level before each use. Ensure the fuel tank isn't empty or filled with impure or low-quality gasoline; if so, fill it with fresh 87+ octane unleaded gasoline. A defective fuel tank cap creating a vacuum could also be the culprit; test or replace it. Improper idle speed can cause this issue, so adjust it properly. In case of a faulty magneto, incorrect timing, or clogged carburetor, have a qualified technician diagnose and service the engine.
J
Jillian DillonAug 14, 2025
How to fix low pump output on Pacific hydrostar Water Pump?
- A
  Angela MclaughlinAug 15, 2025
  Low pump output on your Pacific hydrostar Water Pump can be caused by: 1. A collapsed, damaged, or too-small suction hose (replace or adjust the suction hose). 2. An air leak at the connector (replace the coupling gasket or tighten the clamp). 3. A clogged filter (clean the filter). 4. A damaged, too-long, or too-small discharge hose (replace or adjust the discharge hose).
A
Andrew MartinezAug 19, 2025
What to do if Pacific hydrostar Water Pump does not pump water?
- A
  Amanda MathewsAug 19, 2025
  If your Pacific hydrostar Water Pump isn't pumping water, consider these potential causes: * The pump may not be primed: prime the pump. * The filter is clogged: clean or replace the filter if damaged. * There's an air leak at the connector: replace the coupling gasket or tighten the clamp. * Hose leaks: replace the hose. * The suction hose has a collapsing wall: use a hose with a non-collapsible wall. * The hose diameter is too small: use a hose with a diameter of 2” or greater. * The suction lift is too high: adjust the suction lift.
W
weberharryAug 25, 2025
How to stop Pacific hydrostar Water Pump engine from backfiring?
- J
  james73Aug 26, 2025
  To prevent your Pacific hydrostar Water Pump engine from backfiring, ensure you're using pure, high-quality gasoline. If the engine is too cold, use cold weather fuel and oil additives. Make sure the choke is not open after the engine is warm; move it to the run position. If operating at high altitudes (greater than 5,000 feet above sea level), have a qualified technician adjust the engine. Backfiring can also be caused by an intake valve stuck, choke stuck, incorrect timing, clogged carburetor, or overheated engine; have a qualified technician diagnose and service the engine.

Pacific hydrostar 95977 Specifications

General

Brand	Pacific hydrostar
Model	95977
Category	Water Pump
Language	English

Summary

ASSEMBLY AND OPERATION INSTRUCTIONS

SPECIFICATIONS

GENERAL SAFETY RULES

PERSONAL SAFETY

SPECIFIC SAFETY RULES

TOXIC FUMES, FIRE, AND EXPLOSION PRECAUTIONS

Safety measures against hazardous fumes, fire, and explosions.

MECHANICAL PRECAUTIONS

Precautions related to the mechanical aspects of the pump's operation.

CHEMICAL PRECAUTIONS

CONTROLS AND FEATURES

CONNECTING HOSES

ENGINE PRE-START INSTRUCTIONS

TO START AND STOP THE ENGINE

MAINTENANCE AND SERVICING

Engine Oil Change

Air Filter Maintenance

Cleaning, Maintenance, and Lubrication Schedule

Maintenance Schedule

Troubleshooting

Engine will not start

Diagnosing and resolving issues when the engine fails to start.

Engine misfires

Engine Stops Suddenly

Pump Does Not Pump Water

Low Pump Output

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