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For technical questions, please call 1-888-866-5797.

ITEM 69733 

        

SAFETY

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AINTENANCE

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Warranties

Limited 90 Day Warranty

Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards, 

and warrants to the original purchaser that this product is free from defects in materials and workmanship for the 

period of 90 days from the date of purchase. This warranty does not apply to damage due directly or indirectly, 

to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, criminal activity, improper 

installation, normal wear and tear, or to lack of maintenance. We shall in no event be liable for death, injuries 

to persons or property, or for incidental, contingent, special or consequential damages arising from the use of 

our product. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the 

above limitation of exclusion may not apply to you. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER 

WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.

To take advantage of this warranty, the product or part must be returned to us with transportation charges 

prepaid. Proof of purchase date and an explanation of the complaint must accompany the merchandise. 

If our inspection verifies the defect, we will either repair or replace the product at our election or we may 

elect to refund the purchase price if we cannot readily and quickly provide you with a replacement. We will 

return repaired products at our expense, but if we determine there is no defect, or that the defect resulted 

from causes not within the scope of our warranty, then you must bear the cost of returning the product.

This warranty gives you specific legal rights and you may also have other rights which vary from state to state.

Emission Control System Warranty

United States Emission Control 

Defects Warranty Statement

The United States Environmental Protection Agency (herein 

EPA) and Harbor Freight Tools (herein HFT) are pleased to 

explain the emission control system warranty on your 2014-2015 

Small Off-Road Engine (herein engine). Within the United States, 

new off-road, spark-ignition engines certified for model year 

2014-2015, must meet similar standards set forth by the EPA.  

HFT must warrant the emission control system on your engine 

for the periods of time described below, provided there has been 

no abuse, neglect or improper maintenance of your engine.

Your emission control system may include parts 

such as the carburetor or fuel-injection system, and 

the ignition system. Also included may be hoses, belts, 

connectors and other emission-related assemblies.

Where a warrantable condition exists, HFT will repair your 

engine at no cost to you including diagnosis, parts and labor.

Manufacturer’s Warranty Coverage

The 2014-2015 engines are warranted for two (2) 

years.  If any emission-related part on your engine is 

defective, the part will be repaired or replaced by HFT.

Harbor Freight Tools Emission Control 

Defects Warranty Coverage

Engines are warranted for a period of two (2) years relative 

to emission control parts defects, subject to the provisions 

set forth below. If any emission related part on your engine 

is defective, the part will be repaired or replaced by HFT.

 

Owner’s Warranty Responsibilities

•  As the engine owner, you are responsible for the performance 

of the required maintenance listed in your Owner’s Manual. 

HFT recommends that you retain all receipts covering 

maintenance on your engine, but HFT cannot deny 

warranty solely for the lack of receipts or for your failure to 

ensure the performance of all scheduled maintenance.

•  As the engine owner, you should, however, be aware 

that HFT may deny you warranty coverage if your engine 

or a part has failed due to abuse, neglect, improper 

maintenance, or unapproved modifications.

•  You are responsible for shipping your engine to a HFT warranty 

station as soon as a problem exists.  Contact the HFT Customer 

Service department at the number below to make shipping 

arrangements.  The warranty repairs should be completed 

in a reasonable amount of time, not to exceed 30 days.
If you have any questions regarding your warranty 

rights and responsibilities, you should contact the 

Harbor Freight Tools Customer Service Department at 1-888-866-5797.

Summary of Contents for 79cc

Page 1: ...onth and year of purchase if product has no number Keep this manual and the receipt in a safe and dry place for future reference When unpacking make sure that the product is intact and undamaged If an...

Page 2: ...M 3600 RPM Compression Ratio 8 5 1 Bore x Stroke 52 mm x 37 mm 2 0 IN x 1 5 IN Fuel Type 87 octane stabilizer treated unleaded gasoline Engine Oil Capacity 0 37 Quart 0 35 L Fuel Tank Capacity 0 53 Ga...

Page 3: ...e Injury Wear ANSI approved safety goggles with side shields Read the manual before set up and or use WARNING marking concerning Risk of Hearing Loss Wear hearing protection Symbol Property or Stateme...

Page 4: ...ngine 8 Secure the Engine on transport vehicles to prevent the tool from rolling slipping and tilting 9 Industrial applications must follow OSHA requirements 10 Do not leave the equipment unattended w...

Page 5: ...se for which it is not intended Service Precautions 1 Before service maintenance or cleaning a Turn the engine switch to its OFF position b Allow the engine to completely cool c Then remove the spark...

Page 6: ...this product The emission control system for this Engine is warranted for standards set by the U S Environmental Protection Agency For warranty information refer to the last pages of this manual WARNI...

Page 7: ...l questions please call 1 888 866 5797 ITEM 69733 Safety Operation Maintenance Setup Engine Controls Starter Handle Oil Drain Plug Serial Number Location Air Filter Muffler Choke Fuel Cap Throttle Dip...

Page 8: ...in the Service section shows other viscosities to use in different average temperatures 6 Thread the dipstick back in clockwise NOTICE Do not run the engine with too little oil The engine will be perm...

Page 9: ...Throttle when the tool is so equipped 3 Turn the Engine Switch on 4 Grip the Starter Handle of the Engine loosely and pull it slowly several times to allow the gasoline to flow into the Engine s carbu...

Page 10: ...ast about 3 hours of use During this period Do not apply a heavy load to the equipment Do not operate the engine at its maximum speed c The maintenance break in period will last about 20 hours of use...

Page 11: ...stead Cleaning Maintenance and Lubrication Schedule Note This maintenance schedule is intended solely as a general guide If performance decreases or if equipment operates unusually check systems immed...

Page 12: ...e a drain pan not included underneath the crankcase s drain plug 4 Remove the drain plug and if possible tilt the crankcase slightly to help drain the oil out Recycle used oil 5 Replace the drain plug...

Page 13: ...adually enter the Engine and cause rust damage Apply a thin coat of rust preventive oil to all metal parts 2 FUEL To protect the fuel tank during storage fill the tank with gasoline that has been trea...

Page 14: ...chamber with screwdriver handle 8 Turn Choke to RUN position Remove spark plug and pull the start handle several times to air out the chamber Reinstall spark plug and set Choke to CHOKE position 9 Re...

Page 15: ...ne Do not use gasoline with more than 10 ethanol E15 E20 E85 etc 3 Test replace fuel tank cap 4 Have qualified technician service magneto 5 Secure spark plug cap Engine stops when under heavy load 1 D...

Page 16: ...explain the emission control system warranty on your 2014 2015 Small Off Road Engine herein engine Within the United States new off road spark ignition engines certified for model year 2014 2015 must...

Page 17: ...lterations by changing adding to or removing parts from the engine 5 Service and Maintenance Component parts which are not scheduled for replacement as required maintenance or are scheduled only for r...

Page 18: ...te Subassembly Lifter Stopper 1 45 Bolt Valve Adjusting 2 Part Description Qty 46 Rocker Valve 2 47 Nut Valve Adjusting 2 48 Nut Valve Lock 2 49 Starter Assy Recoil 1 50 Bolt 3 51 Shroud 1 52 Bolt 4 5...

Page 19: ...13 16 15 14 20 19 18 21 25 88 87 87 86 83 82 85 84 64 64 63 59 59 61 60 62 55 54 53 56 51 52 52 52 52 57 58 49 50 50 50 76 77 78 79 80 80 81 38 40 42 43 44 45 46 47 42 43 45 46 47 48 39 40 41 41 48 3...

Page 20: ...ole Diagram Note Not to scale 1 in 25 5mm 2 42 in 61 5mm 4 02 in 102mm 1 44 in 36 5mm Power Take Off Diagram Note Not to scale 0 98 in 25mm 1 79 in 45 5mm 2 37 in 60 1mm 5 16 24UNF 0 1875 in 4 76mm 0...

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