background image

9

Figure 10

Lawn-Boy Generation II 2-Cycle Oil is formulated
specifically for Lawn-Boy two-cycle engines and is
available from your Lawn-Boy retailer. Using Lawn-Boy
Generation II 2-Cycle Oil
 regularly will help keep your
engine clean, reduce spark plug fouling, piston ring
sticking, and pre-ignition. It also minimizes varnish
buildup, combustion chamber deposits, and exhaust port
blockage.

Substitute oils may produce more exhaust smoke, require
more frequent engine service, and reduce engine life.

Note: Failing to use the proper oil or the 32:1
gasoline-to-oil mixture ratio can result in serious engine
damage.

Add Lawn-Boy Generation II 2-Cycle Oil (Fig. 10) or an
equivalent oil to fresh, unleaded gasoline according to the
chart below:

32:1 Gasoline-to-Oil Ratio Mixing Chart

Gasoline

Oil

1 gallon (3.8 liters)

4 ounces (118 ml)

2 gallons (7.6 liters)

8 ounces (237 ml)

5 gallons (19 liters)

20 ounces (591 ml)

To properly mix the gasoline and oil:

1. Pour half of the desired amount of fresh, unleaded

gasoline into a clean, approved gasoline container.

2. Add the full amount of Lawn-Boy Generation II

2-Cycle Oil (Fig. 10) or an equivalent oil to the
gasoline.

3. Install the cap on the gasoline container.

4. Shake the gasoline-and-oil mixture thoroughly.

5. Slowly remove the cap and add the remaining amount

of gasoline.

Note: Do not mix gasoline and oil in the fuel tank. Oil at
room temperature mixes easier and more thoroughly than
cold oil. Oil below 32

°

F (0

°

C) requires additional mixing.

111

1

2

3

Figure 11

1.

Add oil to half of the
gasoline

2.

Install the cap and shake
the can to mix

3.

Add the remaining amount
of gasoline

Important

 

Do not overfill the fuel tank.  The

gasoline/oil mix must have room to expand.

Important

 

Do not use fuel additives except a fuel

stabilizer during storage. Do not use fuel stabilizers
with an alcohol base such as ethanol, methanol, or
isopropanol. You do not need a stabilizer if you use
Lawn-Boy Generation II 2-Cycle Oil
 (Fig. 10).

6. Clean around the fuel cap (Fig. 12).

m–3833

1

2

Figure 12

1.

Fuel cap

2.

Primer

7. Remove the fuel cap and fill the fuel tank with the

gasoline-and-oil mixture to within 1/4 inch (6 mm)
from the top of the tank. Do not fill into the filler
neck.

8. Install the fuel cap securely and wipe up any spilled

fuel.

Summary of Contents for GoldPro Series

Page 1: ...r obtenir gratuitement une version en français de ce manuel écrivez à l adresse ci dessous N oubliez pas d indiquer les numéros de modèle et de série de votre produit Lawn Boy Inc Attn Parts Dept 8111 Lyndale Ave S Bloomington MN 55420 1196 Domestic English EN Form No 3325 494 Rev A GoldPro Series Walk Power Lawn Mower 10424 210000001 and Up 10550 210000001 and Up 10552 210000001 and Up ...

Page 2: ... Engine 10 Using the Self propel Drive 11 Pulling the Lawn Mower Rearward 11 Adjusting the Cutting Height 11 Operating Tips 11 Maintenance 13 Recommended Maintenance Schedule 13 Cleaning the Lawn Mower Housing 14 Cleaning under the Belt Cover 15 Lubricating the Self propel Drive 15 Adjusting the Self propel Drive Cable 16 Servicing the Air Filter 16 Maintaining the Spark Plug 17 Maintaining the Cu...

Page 3: ...nclosed area Warning To ensure maximum safety best performance and to gain knowledge of the product it is essential that you and any other operator of the lawn mower read and understand the contents of this manual before the engine is ever started Pay particular attention to the safety alert symbol which means caution warning or danger personal safety instruction Read and understand the instructio...

Page 4: ... Mow only in daylight or in good artificial light Always be sure of your footing on slopes Walk never run Keep a firm hold on the handle For wheeled rotary lawn mowers mow across the face of slopes never up and down Exercise extreme caution when changing the direction on slopes Do not mow excessively steep slopes Use extreme caution when reversing or pulling the lawn mower toward you Before and wh...

Page 5: ...d gasoline storage area free of grass leaves or excessive grease Check the grass catcher frequently for wear or deterioration Replace worn or damaged parts Use extra care when handling gasoline gasoline vapors are explosive Never tamper with safety devices Check their proper operation regularly Keep the lawn mower free of grass leaves or other debris buildup Clean up any oil or fuel that spills St...

Page 6: ... models 10550 and 10552 only 4 Insert a lock washer and wing nut in either the high setting hole or low setting hole as shown in Figure 2 To set the handle height see Adjusting the Handle Height on page 6 5 Install the upper handle section onto the lower handle section until the lower handle section nests inside the upper handle section 6 Install two bolts and knobs from the loose parts bag to fas...

Page 7: ... 1 2 Figure 5 1 Cover plate 2 Knob Note You do not need to remove or loosen the two shoulder bolts on the housing that protrude through the slotted holes in the cover plate The cover plate moves over the shoulder bolt heads Fig 6 995 1 Figure 6 1 Shoulder bolt 4 Slide the cover plate clockwise to install it or slide counterclockwise to remove it 5 Secure the cover plate with the knob 6 Connect the...

Page 8: ...ot fill the fuel tank completely full Add gasoline to the fuel tank until the level is 1 4 to 1 2 in 6 to 13 mm below the bottom of the filler neck This empty space in the tank allows the gasoline to expand Never smoke when handling gasoline and stay away from an open flame or where a spark may ignite the gasoline fumes Store gasoline in an approved fuel container and keep it out of the reach of c...

Page 9: ...gasoline container 2 Add the full amount of Lawn Boy Generation II 2 Cycle Oil Fig 10 or an equivalent oil to the gasoline 3 Install the cap on the gasoline container 4 Shake the gasoline and oil mixture thoroughly 5 Slowly remove the cap and add the remaining amount of gasoline Note Do not mix gasoline and oil in the fuel tank Oil at room temperature mixes easier and more thoroughly than cold oil...

Page 10: ...between each push Fig 12 Note To start a warm engine move the throttle to the Fast position and press the primer no more than once 4 Hold the blade control bail against the upper handle Fig 13 5 Start the lawn mower Electric Starting Electric Start Model only Turn the key clockwise to the Start position and release the key when the engine starts Fig 16 1352 Figure 16 1 Key Manual Starting Pull the...

Page 11: ... the lawn mower may not have had enough momentum to roll far enough Another way to disengage the clutches is to reach below the upper handle to the metal tube and push the lawn mower forward a couple of inches centimeters This will not engage the drive and should give the clutches the free wheeling they need If you cannot disengage the self propel drive using these methods contact an Authorized Se...

Page 12: ... mm cutting height settings Only cut off about one third of the grass blade Do not cut below the two inch setting unless the grass is sparse or it is late autumn when the grass growth begins to slow down When cutting grass over six inches tall first mow using the highest cutting height setting and walking slower then mow again at a lower setting for best lawn appearance If grass is too long and le...

Page 13: ...drive after changing the handle height installing a new self propel drive cable or if the traction drive belt slips Remove and clean the air filter Clean it more frequently in dusty operating conditions Clean inspect and gap the spark plug Replace it if necessary Sharpen or replace the blade maintain it more frequently if the edge dulls quickly in rough or in sandy conditions Check for leaks in th...

Page 14: ...s 7 While the engine runs engage and disengage the traction drive several times to dry it out Scraping Method If washing does not remove all debris from under the lawn mower tip it and scrape it clean 1 Run the engine dry or remove the fuel when the engine is cool Tipping the lawn mower may cause the fuel to leak from the carburetor or the fuel tank Gasoline is extremely flammable highly explosive...

Page 15: ...e and handle bracket remove the handle before removing the belt cover For more information refer to Adjusting the Handle Height on page 6 4 Remove the debris from under the cover and the pulley groove 5 Replace the belt cover by squeezing the sides together and inserting the tabs on the belt cover into the brackets on the engine base Fig 22 m 4472 1 3 2 3 2 Figure 22 1 Belt cover 2 Tab 3 Bracket 6...

Page 16: ...ve bracket 7 Install the belt cover Servicing the Air Filter Clean the air filter once every season or every 50 operating hours clean it more frequently under dusty conditions Note Do not operate the engine without the air filter element extreme engine damage will occur 1 Snap the air filter cover latch open and swing it to the side Fig 27 ÓÓÓÓ ÓÓÓÓ ÓÓÓÓ m 3834 1 2 Figure 27 1 Filter 2 Cover 2 Rem...

Page 17: ...rp edges of the blade with a rag Warning 1 Disconnect the wire from the spark plug Fig 14 2 Tip the lawn mower onto its right side Fig 20 Inspecting the Blade Carefully examine the blade for sharpness and wear especially where the flat and the curved parts meet Fig 31A Because sand and abrasive material can wear away the metal that connects the flat and curved parts of the blade check the blade be...

Page 18: ...g 35 1007 Figure 35 Note You can also check the balance by using a commercially manufactured blade balancer 2 If either end of the blade rotates downward file that end not the cutting edge or the end near the cutting edge refer to Figure 34 The blade is properly balanced when neither end drops Installing the Blade 1 Ensure that the blade driver is installed on the crankshaft See Figure 32 2 Instal...

Page 19: ...trol bail against the upper handle and pull the starter rope several times to blow out any loose carbon 12 Run a bead of high temperature automotive silicone sealant along the edge of the engine mounting plate where the cover plate will rest Fig 37 13 Install the transfer pipe and cover plate Fig 37 torquing the four cap screws to 75 in lb 8 5 N m 14 Attach the blade driver the blade and the mulch...

Page 20: ...k 4 Use a hand pump to syphon the fuel into a clean approved gasoline container 5 Connect the wire to the spark plug 6 Run the engine until it stops 7 Start the engine again to make sure that all the gasoline is out of the carburetor Storage To prepare the lawn mower for off season storage perform the recommended maintenance procedures Refer to Maintenance on page 13 Store the lawn mower in a cool...

Page 21: ... if one or more of the cables are pinched stretched or damaged Contact your Authorized Service Dealer Warning 2 Check and tighten all fasteners 3 Remove the spark plug Fig 40 and spin the engine rapidly using the starter to blow out the excess oil from the cylinder Clean the spark plug or replace it if it is cracked broken or if the electrodes are worn 4 Install the spark plug and torque to 180 in...

Page 22: ...dle sections through the holes in the hanger clamp 9 Position the bag hanger leg into the hanger clamp groove and secure it with a knob 10 Repeat steps 7 through 9 for the right side of the handle sections 11 Close the rear of the bag by folding the sides in and pressing the interlocking rear handle halves together Fig 44 1012 Figure 44 12 Position the rear bag handles into the bag hanger on the h...

Page 23: ...ark plug before cleaning a clogged chute a bag tunnel or the underside of the lawn mower housing Warning Installing the Mulch Plate To convert from side discharge operation to mulching remove the cover plate and install the mulch plate An uncovered discharge opening could allow the lawn mower to throw objects in the operator s or bystander s direction and result in serious injury Also contact with...

Page 24: ... 7 The battery charge is too low 1 Drain and or fill the fuel tank with a fresh gasoline and oil mixture If the problem persists contact an Authorized Service Dealer 2 Move the throttle lever to the Fast position 3 Press the primer three times 4 Connect the wire to the spark plug 5 Check the spark plug and adjust the gap if necessary Replace the spark plug if it is pitted fouled or cracked 6 Repla...

Page 25: ...wn mower deck 4 Tighten the engine mounting bolts Uneven cutting pattern 1 All four wheels are not at the same height 2 The blade is dull 3 You are mowing in the same pattern repeatedly 4 The underside of the lawn mower deck contains clippings and debris 1 Place all four wheels at the same height 2 Sharpen and balance the blade 3 Change the mowing pattern 4 Clean the underside of the lawn mower de...

Page 26: ...ranty repairs should be completed in a reasonable amount of time not to exceed thirty 30 days If you have any questions regarding your warranty rights and responsibilities or if you need a referral to a Lawn Boy Service Dealer please feel free to contact us at Customer Service Department Lawn Boy Warranty Company 8111 Lyndale Avenue South Bloomington MN 55420 1196 952 888 8801 or 800 LB MOWER 800 ...

Page 27: ...t a warranty station General Conditions Neither Lawn Boy nor Lawn Boy Warranty Company is liable for indirect incidental or consequential damages in connection with the use of the Lawn Boy Products covered by this warranty except for damages to other engine components caused by the failure of a warranted part still under warranty All implied warranties of merchantability that the product is fit fo...

Page 28: ...following the maintenance procedures described in the operator s manual Such routine maintenance whether performed by a dealer or by you is at your expense Items and Conditions Not Covered There is no other express warranty except for special emission system coverage on some products This express warranty does not cover Cost of regular maintenance service or parts such as filters fuel lubricants o...

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