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11

 PROBLEM 

SOLUTION

Recoil will not pull out or is difficult to pull. 

•  Check the engine oil level.

(Refer to the engine Owner’s Manual)

 

•   There may be an oil compression lock in the cylinder. Take 

out the spark plug; hold a rag over the spark plug hole and 

pull the recoil cord several times to blow out any oil in the 

cylinder. Wipe off the spark plug and reinstall it.

 

•   The recoil may be broken or jammed. 

The engine will not start.  

•    Check for proper attachment of the spark plug wire.

 • 

    Check that the engine has the right amount of clean oil. If 

the oil is dirty, change it following the procedure on page 10.

 • 

   Use only fresh, clean, unleaded gas. If the gas is old, change 

it. Use a fuel stabilizer to keep gas longer than one month.

 • 

    Check that the air filter is clean. 

 • 

    Make sure that the spark plug is clean. If the spark plug is 

dirty or cracked, change it. If it is oily, leave it out, hold a 

rag over the spark plug hole and pull the recoil cord several 

times to blow out any oil in the cylinder, then wipe off the 

spark plug and reinsert it.

 
Engine smokes. 

•      Check the oil level and adjust as needed.

 • 

     You may be operating the machine on too great an incline. 

 • 

     Check the air filter and clean or replace if needed.

 • 

     You may be using the wrong oil - too light for the 

temperature. Refer to your engine Owner’s Manual for 

detailed information.

 
 

 Visit our web site at www.dirtyhandtools.com or call       

1-877-487-8275 for assistance.

Troubleshooting

BEFORE PERFORMING ANY MAINTENANCE 

PROCEDURE STOP THE ENGINE, WAIT FIVE (5) 

MINUTES TO ALLOW ALL PARTS TO COOL.

Disconnect the spark plug wire, 

keeping it away from the spark plug.

!

WARNING

Summary of Contents for 106779

Page 1: ...r This safety alert symbol identifies important safety messages in this manual Failure to follow this important safety information may result in serious injury or death MODEL 106779 Operation Manual P...

Page 2: ...th Gasoline and Oil 8 Operation 9 Maintenance 10 Troubleshooting 11 Warranty and Specifications Back Cover 1100 W 120th Ave Suite 600 Westminster CO 80234 720 287 5182 For Service or Questions Call 1...

Page 3: ...it was designed Any other use is unauthorized and may result in serious injury or death Personal Protective Equipment When operating this lawn mower it is essential that you wear safety gear including...

Page 4: ...lawn mower CAREFULLY INSPECT THE AREA TO BE MOWED AND REMOVE ALL FOREIGN OBJECTS Stop the lawn mower when crossing gravel or loose pebbles Never operate the lawn mower on a slippery wet or muddy surfa...

Page 5: ...er the carburetor air intake removed except for adjustment Removal of such parts could create a fire hazard The muffler and engine become very hot with use and can cause a severe burn do not touch All...

Page 6: ...injury or property damage Do not use on slopes greater than 15 incline Mow across instead of up and down slopes Danger sharp object keep hands and feet away from rotating parts keep hands and feet aw...

Page 7: ...ebar both sides to a comfortable operating position Tighten the adjustment knobs securely SAFETY CONTROL BAR MUFFLER RECOIL STARTER GASOLINE FUEL FILL OIL FILL HANDLEBAR ADJUSTMENT UPPER HANDLEBAR ASS...

Page 8: ...until the oil reaches the fill mark Be careful not to overfill 3 Fill the fuel tank with fresh unleaded gas min 85 Octane to 1 4 from the top of the fill neck to allow for expansion Be careful not to...

Page 9: ...stops the engine The lawn mower can easily throw debris at great velocity which could cause personal injury or property damage Do not run the mower over loose gravel sand or debris that can be expelle...

Page 10: ...condition X including nuts bolts welds etc Check the cutting blade for sharpness or X for excessive wear Change the engine oil The first time X after 5 hours of use Replace the air filter cartridge X...

Page 11: ...nger than one month Check that the air filter is clean Make sure that the spark plug is clean If the spark plug is dirty or cracked change it If it is oily leave it out hold a rag over the spark plug...

Page 12: ...ormation below for future reference Model No Serial No Date of Purchase Place of Purchase SKU Part No 106779 Description 21 Inch Lawn Mower Engine 4 4HP 160cc Honda GCV160 Engine EPA 50 State Approved...

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