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5.5 HP Lawn Mower enGIne
96156
InstaLLatIon, oPeratInG, and servIcInG
InstructIons
using an engine indoors can KILL You In
MInutes.
engine exhaust contains carbon monoxide.
this is a poison you cannot see or smell.
only use outsIde
never use inside
and far away from
a home or garage,
windows, doors, and
even IF doors and
vents.
windows are open.
®
distributed exclusively by Harbor Freight t ools .
3491 Mission Oaks Blvd., Camarillo, CA 93011
visit our website at: http://www.harborfre
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Parts LIst ......................................16 contents asseMBLY dIaGraM .....................17 IMPortant saFetY InForMatIon .................................3 LIMIted 90 da Y warrantY .........18 sPecIFIcatIons ...............................6 eMIssIon controL sYsteM warrantY ...................................18 unP acKInG .......................................6 InstaLLatIon ...................................6 oPeratInG InstructIons ...........8 enGIne controLs ......................
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cautIon, without the save tHIs ManuaL safety alert symbol, is Keep this manual for the safety warnings used to address practices not and precautions, installation, operating, related to personal injury. inspection, maintenance and cleaning warnInG! read all instructions. procedures. Write the product’s serial number Failure to follow all instructions in the back of the manual near the assembly listed below may result in fire, diagram (or month and year of purchase if serious inju
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7. Follow lawn mower manufacturer’s 6. Use only accessories that are installation procedures for attaching the recommended by Harbor Freight Tools engine to the mower and connecting the for your model. Accessories that may output shaft. be suitable for one engine may become hazardous when used on another engine. oPeratInG PrecautIons 7. Do not operate in explosive 1. carBon MonoxIde atmospheres, such as in the presence Hazard of flammable liquids, gases, or dust. using an engine indo
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16. This product contains or, when used, guards, and heat shields, among other produces a chemical known to the State guards. of California to cause cancer and birth 3. do not alter or adjust any part of defects or other reproductive harm. the engine that is sealed by the (California Health & Safety Code § manufacturer or distributor. 25249.5, et seq.) 4. Wear ANSI-approved safety goggles, 17. When spills of fuel or oil occur, they must heavy-duty work gloves, and dust mask/ be cleaned
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sPecIFIcatIons InstaLLatIon read the entIre IMPortant Engine Rating 5.5 Horsepower saFetY InForMatIon Type 89+ octane unleaded gasoline Fuel section at the beginning of this Capacity 0.45 Gallons manual including all text under 10W-30 Type (Detergent or non-detergent) Engine Oil subheadings therein before Capacity 18.6 oz. installation or use of this product. Run Time @ 50% Load 3.5 Hours with full tank t o Prevent Sound Level 77 dB serIous Injur Y 4 Stroke, OHV Engine Type FroM accIden
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four mower mounting holes. Brake mower brake (see Figure a.) bracket cable note: Depending on the mower, it may be necessary to drill mounting holes or make a mounting plate to align with the engine mounting holes. 4. Use four 3/8” diameter, coarse threaded, hardened, stainless steel Bolts, Lock Washers, and Washers (not included) of appropriate length to secure the Engine mower brake Brake to the mower. cable sheath arm Make sure the hardware does not contact moving parts. FIG
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Fuel oPeratInG InstructIons valve read the entIre IMPortant saFetY InForMatIon section at the beginning of this manual including all text under subheadings therein before installation or use of this product. engine controls Fuel t ank starter automatic choke control cap Handle throttle control (not adjustaBLe) Fuel valve - This controls the fuel supply to the engine. The horizontal position is closed (off). The vertical position is open (on). choke control - This controls the ai
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1. Clean the top of the dipstick and the area start Procedure around it. Remove the dipstick and wipe Before starting the engine: it off with a clean rag. a. Follow the Installation 2. Reinsert the dipstick without threading Instructions to prepare the it in and remove it to check the oil level. equipment. The oil level should be between the high b. read and follow the instructions and low marks on the dipstick. provided with the lawn mower. c. Inspect the equipment and 3. If the oil
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slowly. Then, pull the starter handle Break-in Period with a rapid, full arm stroke. Once again 1. Breaking-in the engine will help to ensure while holding the handle, allow the rope proper equipment and engine operation, to rewind slowly. Repeat as necessary, and will extend the engine’s lifespan. until the engine starts. The warranty is void if the engine is not 7. After the engine starts and warms up, broken in properly. The first 20 hours of slowly release the choke cable, allow
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engine oil change servIcInG cautIon! Oil is very hot during operation t o Prevent and can cause burns. Wait for engine to serIous Injur Y cool before changing oil. FroM accIdentaL startInG: close the engine’s fuel valve, wait for the engine to cool, and disconnect the spark plug wire(s) before performing any inspection, maintenance, or cleaning procedures. drain Plug t o Prevent serIous Injur Y 1. Place a drain pan (not included) FroM enGIne F aILure: underneath the crankcase’
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spark Plug Maintenance cleaning, Maintenance, and Lubrication schedule 1. Disconnect spark plug wire from end of plug. Clean out debris from around note: This maintenance schedule is spark plug. intended solely as a general guide. If performance decreases or if engine 2. Using a spark plug wrench, remove the operates unusually, check systems spark plug. immediately. The maintenance needs 3. Inspect the spark plug: of each engine will differ depending on If the electrode is oily, cl
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storage 1. Wait for engine to cool, then clean engine with clean cloth. 2. When the engine is to remain idle for longer than 20 days, prepare the engine for storage as follows: a. Change engine oil and empty fuel tank. b. Either leave fuel tank empty or refill fuel tank with fresh unleaded gasoline mixed with a fuel stabilizer intended for long term engine storage (not included). After filling, run engine for about 5-10 minutes to circulate the treated gasoline through the carburetor.
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t roubleshooting MOWER ENGINE SPECIFIC: MOWER ENGINE SPECIFIC: engine will not 1. Brake Handle not held or brake 1. Make sure brake handle is held down and start cable not connected properly. brake cable is properly adjusted. 2. Mower on top of grass. 2. Start mower atop clear area free of loose objects and grass. FUEL RELATED: FUEL RELATED: 1. No fuel in tank or fuel valve closed. 1. Fill fuel tank and open fuel valve. 2. Choke not in start position, 2. Move choke to start position if engine
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Problem Possible causes Probable solutions 1. Spark plug wire loose. 1. Check wire connections. Engine misfires 2. Incorrect spark plug gap or 2. Re-gap or replace spark plug. damaged spark plug. 3. Defective spark plug wire. 3. Replace spark plug wire. 4. Old or low quality gasoline. 4. Use only fresh 89+ octane unleaded gasoline. 5. Incorrect compression. 5. Diagnose and repair compression. (Use engine will not start: coMPressIon reLated section.) 1. Low oil shutdown. 1. Fill engine oil to
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Parts LIst Part description q’ty Part description q’ty 1 Starting flange 1 48 Stud 2 2 Fuel pipe 1 49 Stud 2 3 Air duck 1 50 Bolt 4 4 Fuel cock 1 51 Gauze 1 5 Crankcase 1 52 Dipstick 1 6 Set pin Ø9×14 2 53 Filler 1 7 Gasket, crankcase 1 54 Gasket, air cleaner 1 8 Sump, crankcase B 1 55 Regulating sway bar 1 9 Cylinder head asm 1 56 Split pin 1 10 Gasket, cylinder head 1 57 Oil seal Ø6×11×5 1 11 Exhaust gasket 1 58 Washer 1 12 Cylinder head cover 1 59 Nut 1 13 Gasket, cylinder head cover 1 60 Ign
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asseMBLY dIaGraM 45a rev 08b SKU 96156 For technical questions, please call 1-800-444-3353. Page 17
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To take advantage of this warranty, PLease read tHe FoLLowInG the product or part must be returned to us careFuLLY with transportation charges prepaid. Proof THE MANUFACTURER AND/OR DISTRIBUTOR of purchase date and an explanation of the HAS PROVIDED THE PARTS LIST AND ASSEMBLY complaint must accompany the merchandise. DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR If our inspection verifies the defect, we DISTRIBUTOR MAKES ANY REPRESENTATION will either
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If any emission related part on your engine is defective, the part will be 5. service and Maintenance repaired or replaced by HFT. Component parts which are not scheduled for replacement as required maintenance or are scheduled only for regular inspection owner’s w arranty responsibilities to the effect of “repair or replace as necessary” are warranted for • As the engine owner, you are responsible for the performance the warranty period. Any warranted part which is scheduled for of the r
