The HR194 meets CPSC blade safety requirement for walkbehind rotary power mowers. This manual covers operation and maintenance of the HONDA ROTARY MOWER HR194. All information in this publication is based on the latest product information available at the time of approval for printing. Honda Motor Co., Ltd. reserves the right to make changes at any time without notice and without incurring any obligation. Any powered product can be a potential source of danger if misused or improperly maintained.
Thank you for purchasing a Honda Lawn Mower. If any problems occur, or if there are any questions concerning the mower, consult an authorized dealer. No part of this publication may be reproduced without written permission. * The Honda instructions * Read bag.
CONTENTS.. GENERAL ............................................................. SAFETY .................... COMPONENT IDENTIFICATION CONTROLS.. OPERATION l .............................................. ............................................................. .............................................................. Highaltitudeoperation MAINTENANCE TROUBLESHOOTING SPECIFICATIONS ................................................. ........................ 4 5 7 9 ........................
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COMPONENT IDENTIFICATION SHIFT LfVER DTIVE CLUTCH LEVER THROTTLE LEVER SXA Type RECOIL STARTER I ROTO-STOP LEVER THROTTLE MUFFLER LEVER GRASS BAG HANDLE CUTTING HEIGHT ADJUSTING LEVER GRASS BAG AIR CLEANER PXA Type
DISCHARGE GUARD HANDLE FUEL TANK CAP OIL FILLER CAP HANDLE JOINTS ENGINE OIL DRAIN PLUG
CONTROLS THROTTLE CONTROL LEVEI Throttle positions “CHOKE” “HI” “LO” “STOP” ROTO-STOP Lever To put the cutting blade into operation, press the button on top of the ROTO-STOP lever and push the lever forward, holding it against the handlebar. The blade will stop when the ROTO-STOP lever is released.
Drive Clutch Lever (SXA Type only) The mower moves forward when only the drive clutch lever is squeezed and stops when the lever is released. 1CA UTIOA’ 1 When cutting + First, grass; grip the ROTO-STOP lever only. At this time, the cutting blade should be free as grass, etc., to allow for rapid of any obstacle such acceleration to nor- mal engine R. P.M. + After increasing engine R.P.M. grip [he drive clutch lever so that the engine operates more smoothly.
OPERATION This MOWER should be always used with the grass bag in place. The following suggestions and rules are intended to help you operate your Honda HR194 under the safest conditions possible. Be alert and exercise the same care using the mower as you would when using any other power tool. [CA] * Be especially careful when mowing uneven or rough ground. The mower may tilt, exposing the blade, and hidden objects could be thrown by the blade. * Keep all four iJse extra care wheels on the ground.
BEFORE YOU START THE MOWER 1. Check the engine oil level. * Engine formance oil is a major factor and service life. affecting engine Non-detergent per- or veget- able oils are not recommended. * Running serious the engine with insufficient oil can cause engine damage. Use Honda-4-stroke, or an equivalent high detergent, premium quality motor oil certified to meet or exceed U.S.
2. Check the fuel level. Your engine is designed to use any gasoline that has a of 86 or higher, pump octane number (w) or that has a research octane number of 91 or higher. Gasoline pumps at service station normally display the pump octane number. We recommend that you use unleaded fuel because it produces fewer engine and spark plug deposits and extends the life of exhaust system components. Never use stale or contaminated gasoline or an oil/gasoline mixture.
GASOLINES CONTAINING ALCOHOL If you decide to use a gasoline containing alcohol (gasohol), be sure it’s octane rating is at least as high as that recommended by Honda. There are two types of “gasohol”: one containing ethanol, and the other containing methanol. Do not use gasohol that contains more than 10% ethanol. Do not use gasoline containing methanol (methyl or wood alcohol) that does not also contain cosolvents and corrosion inhibitors for methanol.
3. Handle height adjustment Adjust handle height for comvenient mowing. - Loosen both side of handle hook bolts. Swing the handle up or down as required. * After adjusting, make sure the handle hook bolts are tightened securely. 4.Check the grass bag for fraying, tears and clogged mesh. Wash the bag with water if necessary, and let it dry thoroughly. Grass will not chute properly without adequate ventilaton through the bag. Make sure that the bag is positioned properly. 5.
STARTING THE ENGINE r I I * Exhaust gas contains poisonous carbon monoxide. Never run the mower in an enclosed area. Be sure to provide adequate ventilation. 1. Move the throttle lever to “CHOKE”. CHO NOTE: Do not use “CHOKE" when the engine is warm or the air temperature is high. Move the throttle to “LO” instead. 2. Turn the fuel valve “ON”.
3. Place your foot on the “STEP” of the mower housing. 4. Pull the starter rope lightly until you feel resistance, then pull briskly. NOTE: Do not allow the rope to snap back; return it by hand. 5. After the engine warms up, move the throttle lever to “HI”. Push the ROTO-STOP lever forward to put the cutting blade into operation. SXA type only: Move the shift lever to “1”. Engage the drive clutch/ROTO-STOP and the mower will move forward. For faster speeds, shift to “2”.
Flooded Engine If the engine won’t start after several pulls on the starter rope the engine is probably flooded. To clear a flooded engine: 1. Move the throttle lever to “STOP” and turn off the fuel valve. 2. Remove and dry the spark plug. When re-installing the plug, thread it in by hand until it seats. Then tighten it an additional I/8-1/4 turn with the spark plug wrench to compress the washer. 3. Move the throttle to “HI”, turn on the fuel valve and repeat steps 3-5 under “Starting the Engine”.
Cutting Height Adjustment Six settings are available: 3/4”, l”, l-1/2”, 2”, 2-l/2”, ,, 3 . 1. Stop the engine. 2. Push the front and rear adjusting levers toward the wheels and move them up or down to raise or lower cutting height. Adjust all four wheels to the same height. * Be careful not to touch the muffler ing the right front wheel height. The muffler will gine is stopped.
Grass Bag The bag is subject to wear under normal usage; check frequently for fraying and tears. Replace deteriorated bags only with Honda replacement bags or their equivalent. When the bag needs cleaning, wash it with water and make sure it is dry before using it. Clogged mesh will result in poor grass chuting and a wet bag will clog quickly. Removal 1. Stop the engine. 2. Raise the discharge guard, grasp the grass bag handle, and lift the bag to unhook it from the mower.
TRANSPORTING/STORAGE HANDLE JOINTS Transporting Turn the mower. fuel valve OFF when transporting the HANDLE JOINTS * fuel and oil spillage fbel may ignite. To avoid spilled to tlot tilt the unit; The handle may be folded for convenience: 1. Remove the grass bag (p. 18). 2. Loosen the upper and lower handle joints and collapse the handle as shown.
Preparation for Storage - The following steps should be taken to protect the mower whenever it will be stored for longer than 30 days. 1. Drain the fuel tank and carburetor into a suitable gasoline container: A. Disconnect the fuel tube from the carburetor and drain the fuel tank. B. Loosen the carburetor drain bolt to drain the carburetor. C. Retighten the drain bolt, connect the fuel tube and turn the fuel valve OFF. * Gasoline lolder flames is extremely flammable certain couditiotls.
3. Pull the starter rope until resistance is felt. This closes the valves and helps to protect the combustion chamber from corrosion. 4. Remove dirt and debris from the underside of the mower housing. Clean the mower thoroughly. Paint areas that may rust with a rust-resistant paint, or coat with a light film of oil. 5. Move the shift lever into 1st position. 6. Cover the mower and store it on a level surface in a dry, dust-free area. /// / STARTER GRIP / \ Removal From Storage 1.
MAINTENANCE * shut off the engine cap before perform- To prevent accidental start-up, and disconnect the spark plug ing any maintenance. * Use only for genuine Honda parts maintenance or repair. which are not of equivalent or their equivalent Replacement parts quality may damage the mower. Periodic inspection and adjustment of the Honda HR194 are essential if high level performance is to be maintained. Regular maintenance will also help to extend service life.
Maintenance Fuel tuabe Schedule Every 3 years (2) (1) Service more frequently when used in dusty areas. (2) These items should be serviced by an authorized lawn mower, unless the owner has the proper tools and is mechanically proficient. See the Honda Shop Manual. (3) For professional commercial use, log hours of operation to determine proper maintenance intervals.
ENGINE OIL CHANGE Drain the oil while the engine is still warm to assure rapid and complete draining. 1. Remove the filler cap. 2. Remove the drain bolt, drain the oil, and retighten the bolt securely. 3. Refill to the “Upper” level mark with the recommended oil. Tighten the cap securely to prevent leakage. l Used motor oil may cause skin cancer if repeatedly left in contact with the skin for prolonged periods.
AIR CLEANER SERVICE A dirty air cleaner will restrict air flow to the carburetor. To prevent carburetor malfunction, service the air cleaner frequently. 1. Remove the wing bolts and the air cleaner cover. Remove the elements and separate them. Carefully check both elements for holes or tears and replace if damaged. 2. Foam element: Clean in warm soapy water, rinse and allow to dry thoroughly. Or clean in high flash-point solvent and allow to dry.
SPARK PLUG Standard Plug: BPSES, BPRSES (NGK) W 16EP-U, W 16EPR-U (ND) 1. Disconnect the cap and remove the spark plug. the plug. Discard the plug if its tip is heavily deposited or if the insulator is cracked or chipped. 3. Measure the plug gap with a wire-type feeler gauge; it should be 0.6-0.7 mm (0.024-0.028 in). If adjustment is necessary, bend the side electrode carefully. 4. Make sure the sealing washer is in good condition, then thread the spark plug in by hand until it seats. 5.
BLADEREMOVALANDSHARPENING * Wear heavy gloves to protect * Disconnect ral start-up. the spark plug your hands. cap to prevent acciden- 1. Turn the fuel valve to “OFF,” and drain the carburetor (see p. 20). 2. Tilt the mower so the carburetor side is up. Remove the blade bolts to remove the blade. NOTE: Never tilt the mower so the carburetor It will result in hard starting. side is down. 3. Sharpen the blade cutting edges with a file. File the top side only.
THROTTLE CONTROL CABLE ADJUSTMENT 1. With the throttle lever in the “CHOKE” position, the carburetor choke arm should move all the way to the right, as far as it will go. Push the choke arm with your finger to check whether it is all the way to the right. 2. If adjustment is necessary, loosen the control cable lock nuts, and move the adjuster up or down as required. Tighten the lock nuts, and recheck the carburetor choke arm position. 3.
ROTO-STOP LEVER FREE PLAY 1. Measure free play at the tip of the lever with the button pushed down, it should be between 5-10 mm (3/ 16-3/8 in). 2. If adjustment is necessary, loosen the lock nuts and turn them to run the adjuster up or down as required. Tighten the lock nuts and recheck free play. 3. Start the engine and operate the ROTO-STOP lever. Check to be sure the blade stops when the lever is released.
SHIFT LEVER FREE PLAY (SXA Type) 1. Measure free play at the tip of the lever, it should be 1-3 mm (3/64-l/8 in). 2. If adjustment is necessary, loosen the lock nuts and turn them to run the adjuster up or down as required. Tighten the lock nuts and recheck free play. 3. Start the engine and operate the shift lever. Check to be sure the transmission is shifted into gear smoothly. * Never shift 30 the transmission while self-propelling.
DRIVE CLUTCH FREE PLAY (SXA Type) 1. Measure free play at the top of the lever as shown; it should be between 5-10 mm (3/16-3/8 in). 2. If adjustment is necessary, loosen the clutch cable lock nuts and turn the adjusting bolt to increase or decrease free play. 3. Tighten the lock nuts securely. 4. After adjusting, make sure the drive clutch operates properly; moving forward when gripping and stopping to propel1 when releasing.
SPARK ARRESTER MAINTENANCE (Optional part) If the mower has been runtzing, very hot. A/low ir (0 cool before the muffler will be proceeding. IDENTIFICATION PLATEJOptional part) SPARK ARRESTER lnntinnal oartl 1. Loosen two 6 mm nuts and remove the muffler protector, identification plate, muffler camp and gasket. 2. Remove spark arrester from the muffler. (Taking care not to damage the wire mesh.) GAiKET NOTE: Check for carbon deposits and the spark arrester, and necessary. 3.
IDLE ADJUSTMENT NOTE: The following adjustment should be performed by an authorized Honda dealer unless the owner has the proper tools and is mechanically proficient. 1. Start the engine and allow it to warm up to normal operating temperature. 2. Place the throttle lever in the “LO” position. 3. Connect a tachometer to the engine according to the manufacturer’s instructions. 4. Turn the throttle stop screw in or out to adjust the engine speed to 2,000 f 150 rpm.
CRASS BAG ASSEMBLY 1. lnsert the bag frame into the grass bag as shown. 2. Hook the plastic edges of the grass bag onto the frame.
TROUBLESHOOTING Engine will not start 1. No fuel. 2. Throttle lever in “STOP” position. 3. Spark plug wire loose or disconnected. 4. Spark plug faulty or improperly gapped (p. 26). 5, Engine flooded (p. 16). Hard starting or loss of power 6. Dirty air cleaner. 1. Dirt in gas tank. 2. Dirty air cleaner. 3. Water in gas tank or carburetor. Erratic operation 4. Vent in gas cap and/or carburetor clogged. 1. Spark plug faulty or improperly gapped (p. 26). 2. Dirty air cleaner. Engine overheats 1.
SPECIFICATIONS MODEL ENGINE Overhead engine. Engine type Displacement/Bore Ignition timing and stroke air-cooled four-stroke 118 cm3 (7.2 cu in)/60 x 42 mm (2.4 x 1.7 in) Fuel tank capacity 25” - 27” BTDC Transistorized magneto ignition 0.6 II (0.63 US (It) 1.0 II (0.26 US ml) Spark plug BPSES, BPRSES (NGK) or W 16EP-U, W 16EPR-U (ND) Ignition system Enaine oil caoacitv FRAME Dimensions (Length X Width X Height) Dry weight PXA: 1590 X 510 X 1030 mm (62.6 X 20.1 X 40.
WARRANTY SERVICE Your satisfaction and goodwill are important to your dealer and to us. All Honda warranty details are explained in the Distributor’s Limited Warranty. Normally, any problems concerning the product will be handled by your dealer’s service department. If you have a warranty problem that has not been handled to your satisfaction, we suggest you take the following action: l l Discuss your problem with a member of dealership management. Often complaints can be quickly resolved at that level.
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