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4 HP GAS ENGINE
VERTICAL - OHV
Model 96155
ASSEMbLy ANd OPERATION INSTRuCTIONS
IMPORTANT!
your warranty is
voided if:
You do not put Engine
oil in the Engine’s
crankcase prior to its
first use.
Never run the Engine
with low or no Engine
oil.
Running the Engine
with low or no oil will
permanently damage
the Engine.
Due to continuing improvements, actual product may differ slightly from the product described herein.
Distributed exclusively by Harbor Freight Tools.
3491 Mission Oaks Blvd., Camarill
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SPECIfICATIONS 4 HP 4-Stroke Gasoline Engine with Vertical Shaft & Recoil Start Engine Type Air Cooled / Engine Model: 1P60FV-C / Engine Family: 7CLGS.1356V Displacement 119cc Compression Ratio 8:1 Maximum Power Output 4 HP @ 3600 RPM Maximum Torque 3.85 ft-lb @ 2500 RPM Fuel Tank Capacity 0.5 Gal. Engine Oil Capacity 20 Oz. Shaft Size 3/4” Diameter x 2-1/4” Long with 1/8” Keyway Engine Rotation Counterclockwise Facing the Shaft ® ® Spark Plug Type NGK BR-6HS (Champion RL86C) Air Cleaner Type S
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wORk AREA 1. keep your work area clean and well lit. Cluttered and dark areas invite acci- dents. 2. do not operate the Engine in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust. Gasoline engines create sparks which may ignite the dust or fumes. 3. keep bystanders, children, and visitors away while operating a power tool. Distractions can cause you to lose control. Protect others in the work area from debris such as chips and sparks. Provide barriers o
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Spark Plug w ire before performing any inspection, maintenance, or cleaning procedures. 4. Store idle equipment out of reach of children and other untrained persons. Gasoine engines are dangerous in the hands of untrained users. 5. Maintain tools with care. keep the Engine clean. Properly maintained engines are less likely to malfunction and are easier to control. Do not use a damaged Engine. Tag damaged engines “Do not use” until repaired. 6. Check for misalignment or binding of moving
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interference or pacemaker failure. Caution is necessary when near the Engine’s magneto or recoil starter. 6. Never leave the Engine unattended when it is running. Turn off the Engine before leaving the work area. 7. Always use the Engine on a flat, level, dry ground surface. 8. Make sure to keep hands and fingers away from all moving parts of the En- gine. 9. Prior to installing the Engine onto a power equipment unit, make sure to read and understand all instructions and safety precautions
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MECHANICAL PRECAuTIONS 1. Prior to performing service, maintenance, or cleaning procedures, always make sure the Engine’s Ignition Switch is in its “Off” position. Allow the En- gine to completely cool. Then, remove the Spark Plug Wire from the Spark Plug. 2. do not alter or adjust any part of the Engine that is assembled and supplied by the manufacturer or distributor. 3. Always follow and complete scheduled Engine maintenance. CHEMICAL PRECAuTIONS 1. Avoid contact with hot fuel, oil, and e
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ASSEMbLy INSTRuCTIONS 1. IMPORTANT: If you have any doubts about your ability to perform the following assembly procedures, you should have a qualified service technician perform the assembly for you. 2. Located at the base of the Crankcase Sump (11 - page 13) are four 8mm x 1.25 mounting holes. (See figure A.) 3. Set the Engine upright on the power equipment unit, and align the four mounting holes of the Engine with four 8mm x 1.25 mounting holes in the power equip- ment unit. NOTE: Dep
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REGuLATING MOuNT THROTTLE (1 - page 22) THROTTLE CONTROL CAbLE (NOT INCLudEd) fIGuRE b OPERATING INSTRuCTIONS 1. Make sure the Engine’s Crankcase is filled with approximately 20 ounces of 10-30W automotive oil. Also, make sure the Engine’s Fuel Tank is filled with approximately 1/2 gallon of unleaded gasoline before attempting to start the Engine. Failure to do so wILL damage the Engine and void the Warranty. 2. To do so, check to make sure the Drain Plug (13 - page 13) is tight. Then unsc
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fuEL fILLER CAP (2 - PAGE 18) dIPSTICk (2 - PAGE 13) fIGuRE C fIGuRE d fuEL TANk (8) (PAGE 18) fILLER (4) (PAGE 13) dRAIN PLuG (13) (PAGE 13) 7. Grasp the Starter Handle (11 - page 21) on the Recoil Starter (12 - page 21) and pull slowly until resistance is felt. Allow the Starter Rope to rewind slowly. Then pull the Starter Handle with a rapid, full arm stroke. Allow the Starter Rope to rewind slowly. If necessary, repeat this process until the Engine starts. (See figure f .) 8. When th
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INSPECTION, MAINTENANCE, ANd CLEANING 1. wARNING! Never perform any services or maintenance on the Engine while it is running. Before performing any inspection, maintenance, and cleaning, turn off the Engine and disconnect the Spark Plug Wire from the Spark Plug to prevent accidental starting. Then, allow the Engine to completely cool. 2. Before each use, inspect the general condition of the Engine. Check for loose bolts and nuts, misalignment, binding of moving parts, loose or br
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TROubLESHOOTING Problem Possible Cause Possible Solution Engine will not start. 1. Low on fuel or oil. 1. Add fuel or oil. 2. Ignition switch is in “OFF” position. 2. Turn ignition switch to “ON” position. 3. Faulty spark plug. 3. Clean or replace spark plug. 4. Choke in wrong position. 4. Properly adjust choke. 5. Fuel lever in “CLOSED” position. 5. Turn fuel lever to “OPEN” position. 6. Engine under load during start-up. 6. Remove load from Engine. 7. Spark plug wire loose. 7. Attach wire to s
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PARTS LIST/dIAGRAM - CRANkCASE Part description Q’ty Part description Q’ty 1 Crankcase 1 9 Oil Seal (6x11x4) 1 2 Valve Piece 1 10 Split Pin 1 3 Gauze 1 11 Set Pin (8x14) 2 4 Crankshaft Upper Oil Seal (22x35x6) 1 12 Bearing (62/22 P5) 1 5 Filter Cover 1 13 Oil Bypass 1 6 Gasket 1 14 Bolt (M6x28) 7 7 Washer 1 15 Bolt (M6x14) 2 8 Regulating Sway Bar 1 16 Air Duct 1 IMPORTANT when ordering parts from the above Parts List, make sure to specify the following: a. The PART NuMbER listed to
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PARTS LIST/dIAGRAM - CRANkCASE SuMP Part description Q’ty Part description Q’ty 1 Crankcase Gasket 1 11 Sump, Crankcase 1 2 Dipstick 1 12 Washer 1 3 Seal 2 13 Drain Plug 1 4 Filler 1 14 Oil Seal, Crankshaft (25x38x7) 1 5 Sliding Sleeve 1 15 Bolt (M6x32) 1 6 Drive Gear, Regulator 1 16 Washer, Drive Gear 1 7 Washer 1 17 Seal (II) 1 8 Regulating Shaft 1 18 Dipstick with Seal 1 9 Bolt (M6x12) 1 10 Clamp, Regulating Shaft 1 IMPORTANT when ordering parts from the above Parts List, make su
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PARTS LIST/dIAGRAM - CyLINdER HEAd/CyLINdER HEAd COVER Part description Q’ty Part description Q’ty 1 Set Pin (10x16) 2 7 Exhaust Valve Guide 1 2 Cylinder Head Gasket 1 8 Circlip 1 3 Stud 4 9 Bolt 4 4 Spark Plug (F6RTCU) 1 10 Gasket, Cylinder Head Cover 1 5 Cylinder Head 1 11 Cylinder Head Cover 1 6 Intake Valve Guide 1 12 Bolt (M6x14) 4 IMPORTANT when ordering parts from the above Parts List, make sure to specify the following: a. The PART NuMbER listed to the left of the part descr
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PARTS LIST/dIAGRAM - CRANkSHAfT, PISTON, CONNECTING ROd Part description Q’ty Part description Q’ty 1 Piston Ring (I) 1 9 Bolt 2 2 Piston Ring (II) 1 10 Crankshaft 1 3 Scraper Ring Set 1 11 Timing Drive Gear 1 4 Piston Pin Circlip 2 12 Woodruff Key 1 5 Piston Pin 1 13 Crankshaft Kit 1 6 Piston 1 14 Connecting Rod Kit 1 7 Connecting Rod Shank 1 15 Piston Ring Set Kit 1 8 Connecting Rod Cap 1 16 Adjusting Washer 1 IMPORTANT when ordering parts from the above Parts List, make sure to s
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PARTS LIST/dIAGRAM - CAMSHAfT, VALVE ROCkER Part description Q’ty Part description Q’ty 1 Lock Nut 2 10 Valve Spring 2 2 Sleeve 2 11 Spring Seat 2 3 Valve Rocker 2 12 Exhaust Valve 1 4 Adjusting Bolt for Valve Gap 1 13 Pin 1 5 Pusher Guide 2 14 Sleeve, Spring 1 6 Push Rods 2 15 Spring 1 7 Valve Tappets 2 16 Flying Block 1 8 Camshaft 1 17 Camshaft Assy. 1 9 Intake Valve 1 18 Valve Rocker Assy. 2 IMPORTANT when ordering parts from the above Parts List, make sure to specify the followi
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PARTS LIST/dIAGRAM - CARbuRETOR Part description Q’ty Part description Q’ty 1 Carburetor 1 11 Float 1 2 Air Cleaner Gasket 1 12 Float Needle Valve 1 3 Carburetor Gasket 1 13 Main Jet 1 4 Heat Insulator 1 14 Main Jet Pipe 1 5 Inlet Gasket 1 15 Mixture Adjustment Screw 1 6 Float Chamber Drain Screw 1 16 Idle Adjustment Screw 1 7 Washer 2 17 Carburetor Mixture Chamber Body 1 8 Screw 1 18 Choke 1 9 Float Chamber 1 19 Nut (M6) 2 10 Float Chamber Gasket 1 IMPORTANT when ordering parts fro
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PARTS LIST/dIAGRAM - fuEL TANk Part description Q’ty Part description Q’ty 1 Fuel Filler Cap Assy. 1 8 Fuel Tank 1 2 Fuel Filler Cap 1 9 Fuel Tank Cushion 2 3 Foam 1 10 Washer (10.5x30x1) 1 4 Packing Ring 1 11 Stud 1 5 Pipe Clamp (12.8) 1 12 Bolt (M6x12) 2 6 Pipe Clamp (10.8) 3 13 Bracket 1 7 Outlet Pipe (I) 2 IMPORTANT when ordering parts from the above Parts List, make sure to specify the following: a. The PART NuMbER listed to the left of the part description. b. The NAME Of THE
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PARTS LIST/dIAGRAM - AIR CLEANER Part description Q’ty Part description Q’ty 1 Air Cleaner Bolt (M5x50) 1 5 Gasket 1 2 Air Cleaner Bolt (M5x57) 1 6 Air Cleaner Housing 1 3 Air Cleaner Cover 1 7 Nut (M6) 2 4 Filter Element 1 IMPORTANT when ordering parts from the above Parts List, make sure to specify the following: a. The PART NuMbER listed to the left of the part description. b. The NAME Of THE PARTS LIST from which you are ordering (located at the top of this page). SKU 96155 for
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PARTS LIST/dIAGRAM - MuffLER Part description Q’ty Part description Q’ty 1 Exhaust Gasket 1 3 Muffler Hood 1 2 Muffler 1 4 Fixing Nut 2 IMPORTANT when ordering parts from the above Parts List, make sure to specify the following: a. The PART NuMbER listed to the left of the part description. b. The NAME Of THE PARTS LIST from which you are ordering (located at the top of this page). SKU 96155 for technical questions, please call 1-800-444-3353. Page 20
