Honda Tractor 5518 Manual

Honda Tractor 5518 Manual

Pay special attention damage. Understand Allowing anyone to operate result in injury. Allowing passengers may cause the tractor Wear sturdy,. Refuel in a well ventilated Allowed the engine may ignite. The accumulation haust system, or on top pulleys) may ignite. It is illegal in some areas to operate an engine without spark arrester. Lock the parking stop the engine.Be sure that the main transmission and reduce engine Do not apply while turning. Before cleaning, inspecting Turn off and lower Stop the engine Remove the spark plug caps. If you hit an object, tachments. Fix any damage Operating the tractor severe personal injury. Leaves, grass clippings, become a fire hazard.Record the number here for your reference. MM46 Serial number: MK4618 Serial number: MM46 SERIAL MK4616 SERIAL your rotary mower ordering replacement is located. Torque specification: FLANGE BOLTS 8xl6mm FRONT TENSIONER BRACKET Insert the end of the tensioner arm. Hook the other end into the frame tab as shown.Install the tensioner guard on the frame from the outside as shown, using the six 8 x 25 mm flange bolts and tighten to the specified torque. Torque specification: 2.2 kg-m (16 ft-lbl. Slide the lift link shaft through shown. Retighten Recommended LIFT LINK SHAFT 4. Lubricate the lift arm pin with grease, then insert the threaded the lift arm pin through the end of the pivot. Start the engine and move the hydraulic lever (optional part) to the “FRONT” with the hydraulic HYDRAtiLlC SELECTOR (OPTIONAL Turn the descent Stop the engine. Install the left cutter Slide the rear link shaft brackets and rear deck links as shown. REAR LINK SHAFT lock by turning (FAST direction). Connect deck and to the right bracket on the tractor.NOTE: To ease bracket, raise the front of the deck slightly Align the hole in the right bracket of the front link protector.

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Remove the ignition spark plug caps to prevent Wear heavy gloves to protect working with the cutter If the tractor has been running, Allow them to cool before ) NOTICE o assure proper belt tension Honda specified drive belts. Loosen the adjust pin lock nuts and turn the pins an equal number of full turns: out lowers the front clearance; in raises the clearance. FRf-lNT nFf!K I INK. After adjustment, securely. 2. Do not adjust the cutter deck lift rod less than 367 mm (14.5 the first time. If the height of the cutter deck is below in.) with the cutter deck lift rod being 367 mm (14.5 the height with the cutter. Visually spark plug caps. Visually faults. faults. If the drive belt is faulty, If the drive belt is faulty, ed on page 45. Severe personal injury thrown from under the cutter Never operate the tractor Never operate. Contacting moving 1. Park the tractor 2. Make sure the main transmission front and rear P.T.O. center (Neutral) 3. Start the engine, part) to “FRONT”. Adjustment deck to lower from the highest Turning the knob clockwise turning it counterclockwise DESCENT NOTE: Uneven mowing 3. Starting 1. Start the engine. auxiliary transmission CLUTCH. Always mow at full throttle. THROTTLE LEVER 3. Depress the brake pedal and release the parking brake lock lever.Prior to shifting, set the steering ing the tractor to a complete NOTE: If difficulty gears by driving the tractor engaged. In 4-wheel traction when rounding ground by the wheels. Operating the tractor cause it to tip or roll over. Certain maneuvers surfaces; avoid sharp turns, Also, avoid backing. In a small area First make 2 or 3 turns in a clockwise continue cutting In a large area The first round of cuts is the key to making a neat finish.Be sure that each mowing overlap width is between the mower’s front tires. Overlapping in curves When cutting in curves and turns, shift to a slower speed and be sure to overlap the previous mower. HYDRAULIC LIFT LEVER 5.

Turn the engine switch (ignition switch) to “OFF’. To avoid injury to yourself tor unattended, ALWAYS: take-off (P.T.O.), lower engine and remove the key.To avoid serious burns, maintenance. Shut the engine off and set the parking maintenance. Do not allow the blade to overlap the edge of the holder. Install the washer The blade bolt and washer and must not be replaced. SAE Multipurpose Grease securely if necessary. Cleaning and rust prevention storage.Allow the deck to cool before remove. Normally, any problems dealer’s service department.They should be able to answer any question you may have. If you encounter a problem that your dealer does not solve to your satisfaction, please discuss it with the dealership's management. This manual describes operation and maintenance of the Honda H5518Read all safety instructions before operating.Page 9 BEFORE STARTINGPage 12: SERIAL NUMBERS 2. SERIAL NUMBERS. Record the frame and engine serial numbers for your reference. Refer toPage 13: COMPONENT IDENTIFICATION 3. COMPONENT IDENTIFICATIONThe headlight switch turns the headlights ON and OFF.If the oil level falls below normal operating level while the engine is runn-. The light comes on when the coolant temperature is above the operatingThe accelerator pedal should be used with the throttle lever set in SLOWThe brake pedal is used to slow the tractor. When you want to bring the tractor to. Page 22 6. Clutch pedal. Depress the clutch pedal and come to a complete stop before operatingThe lever is used to engage or disengage the front P.T.O. (Power Take Off)The lever is used to engage or disengage the rear P.T.O. shaft. The rear P.T.O. shaft. Page 25 11. Two- and four wheel drive select lever (A4 type only). Two and four wheel drive can be selected by. Page 26 HYDRAULIC LIFT SYSTEM. The front attachment can be raised and lowered by operating the hydraulicThe oil pressure from the oil pump can be. Page 28 2. Hydraulic lift lever.

The attachment can be raised and lowered by operating this lever. In the. SLOW UP position,. Page 29 3. Descent speed adjust knob. Descending speed can be pre-adjusted to compensate for the weight ofFor safe and efficient operation, always perform the pre-operation checksFollow the procedures. Page 31 Engine oil levelTurn the engine switch (ignition switch) ON and check the fuel gauge. If the fuel level is low. Page 33 Fuel recommendation. Use unleaded gasoline with a pump octane rating of 86 or higher. This engine is certified to operate. Page 34 Oxygenatedfuels. Some conventional gasolines are being blended with alcohol or an etherPage 35 Air cleaner. Check that the air cleaner elements are clean and in good condition. A dir-If there is no coolant in the reserve tank, check the cooling system forPage 37 Battery electrolyte level. Open the hood, and check the battery electrolyte level. The electrolyte level must be kept between the. Page 38 Hydraulic lift system oil leakage inspection. Open the hood, raise the seat, and visually inspect the oil line for cracks. Page 39 Fan belt. Visually inspect the fan belt for wear or damage. If worn or damaged, con-Page 40 Brake wear indicator. Inspect brake lining condition every time the tractor is used. Firmly set the parking brake, and then.I Before performing this inspection, lower the front and rear (op-Page 43 Seat adjustment. Make sure the seat and seat bolts are properly adjusted and securelyIf necessary:Make sure that the parking brake and warning buzzer system operate pro-Page 45 Safety interlock systemPage 46 - 2. Front P.T.O. switch N OFFTwo or four wheel drive can be selected by operating the. Page 57 5. TurningUse of Honda attachments is recommended. If an attachment exceeds thePage 60 l TowingFailure to use aPage 62 l Counterweight. When an attachment is fitted to the FRONT or REAR, the weight balance betweenNOTE: This table. Page 65 7. Driving on a slope. Before starting up or down a long incline, select one of.

the. lower gearIf possible avoid stopping the tractor while driving uphill. If it is necessaryPage 68 - 3. Shift the front and rear P.T.O. levers to the “OFF” position.Select a safe and correct operating speed as per the instructions shown inAt high altitude, the standard carburetor air-fuel mixture will be too rich. Performance will decrease, and. Page 72: TRANSPORTING 7. TRANSPORTING. TransportingPage 74: INSTALLING AN ATTACHMENT 8. INSTALLING AN ATTACHMENT. Before installing or using any attachment, carefully read all instructionsPark the tractor on firm, level ground, set the parking brake, and move the. Page 77 f. Install the universal shaft. (P.T.O. P.T.O. HOLEPage 78: MAINTENANCE 9. MAINTENANCE. The Importance of Maintenance. Good maintenance is essential for safe, economical, and trouble-free opera-Some of the most important safety precautions follow. However, we cannotPage 80 Emission Control SystemIf you are aware of any of the following symptoms, have your engine inspectedThe emission control systems on your Honda engine were designed, built, andThe tools supplied are necessary for performing some periodic mainte-The tool. Page 84 2. Maintenance scheduleITEM Perform at every indicated EACH 3MONTHSGMONTHSYEAR 3YEARS SYEARSDrain the oil while the engine is warm to assure rapid and completeA dirty air cleaner will restrict air flow to the carburetor. If you operate theRecommended spark plug: BPRSES-11 (NGK)If the tractor is operated with insufficient battery electrolyte, sulfation andIf the battery terminals are contaminated or corroded, remove the batteryTo remove:Check and apply grease where noted. Recommended grease: SAE Multipurpose Grease.You can purchase an optional, U.S.D.A. qualified spark arrester from yourDo not attempt to remove a wheel unless the tractor is on firm levelDo not. Page 99 13. Fuse replacement. The fuse box is located near the battery. When frequent fuse failure occurs, it usually indicates a. Page 100 14. Headlight bulb replacement.

Open the engine hood and lift up the edge of the bulb connector rubberThe engine becomes very hot during operation and remains hot for a. Page 102 2. Change the engine oil (see page 84). NOTE: If the tractor will be stored for longer than 3 months,. Page 103 4. Store the tractor on a level surface in a dry, dust-free area with thePage 110: SPECIFICATIONS 13.Page 111 Front differential oil capacityThey should be able to answer any. Page 113: CURRENT CUSTOMER SERVICE CONTACT INFO Current customer service contact information. United States, Puerto Rico, and U.S. Virgin Islands. Honda Power Equipment dealership personnel are trained. Page 114 MEMO. Find resale prices for tractors built from 1939 through today, with complete specifications and serial numbers. Save 15% on our Official Tractor Blue Book sale! I have found the Honds tractor shop manuals to be quite useless. Subject. Comments. The headquarters is in Tokyo. The brand is known as one of the largest car manufacturers in the world. Honda in 1986 was the first among Japanese manufacturers to introduce the premium brand Acura, later Toyota and Nissan followed suit. Honda manufactured tractors since the early 80s until 2000. The range of Honda tractors covered everything from self-propelled lawn mowers to all-wheel drive general purpose tractors. Page 3 Thank you for purchasing This manual tractor, type Model).All information in this manual is based available at the time of printing. Honda without on the latest Motor Co., Ltd. Page 4 Page 5 Page 6 Page 7 1. SAFETY Read all safety instructions before INFORMATION operating.Know these requirements before you operate the Tractor or its attachments: SAFE l l 6 OPERATING RULES Severe personal injury or equipment damage may result if the preoperation inspection (Pages 28 thru 46) is not performed before operating the tractor or its attachments. To avoid loss of control that can result in severe personal injury: - Only use recommended hitch attachment points.

- Limit loads to as suggested on page 56. - Be extra careful when turning or backing up. - Use counterweight(s) as suggested on page 60. Before installing or using any attachment, carefully read’all instructions and precautions. Page 10 When operating the tractor on a slope, always drive up and down the face of the grade. Turning or driving across the face of a slope may cause the tractor to overturn. To avoid loss of control or overturning, always reduce speed and exercise extreme caution when operating on sloping or uneven surfaces. Attempting to change gears while operating the tractor on a slope may adversely affect vehicle stability and control and severe personal injury could result. Before cleaning, inspecting or servicing the tractor, be sure to - Move the P.T.O. lever to the “OFF” position and lower any attachments. - Stop the engine and remove the key. - Remove the spark plug caps. If you hit an object, stop the engine and inspect the Tractor and its attachments. Fix any damage before you resume operation. Page 12 2. SERIAL NUMBERS Record the frame and engine serial numbers for your reference. Refer to the serial numbers when ordering parts, and when making technical or warranty inquires (see page 110). The frame serial number is stamped on the right side of the frame.If indicator light comes stop the engine immediately. Open the engine hood and Check the radiator screen for necessary (see page 91). Depress the pedal to increase the engine speed. Releasin-g the foot from the pedal causes the engine speed to decrease. Use this pedal when propelling on roads or transporting your tractor from one place to another.When you want to bring the tractor to a full stop, clutch pedal first, then the brake pedal.Driving the tractor with the brake pedal partly depressed can damage the brake lining. To shift into four wheel drive, move the shift lever up to the four wheel drive position. For two wheel drive, move the shift lever down to the two Wheel Drive position.

1 NOTICE plete 1 B stop e f ore shifting the lever, be sure to bring and depress the clutch pedal fully. For oDeration 54.. of the two-and four-wheel TWO AND FOUR WHEEL SELECT LEVER 12. Page 26 HYDRAULIC The front lift lever, LIFT SYSTEM attachment can be raised and lowered when the engine is running.In the SLOW UP position, the attachment will lift slowly and in the FAST UP position, the attachment will lift quickly. In the SLOW DOWN position the attachment will lower slowly and in the FAST DOWN position the attachment will lower more quickly. In either DOWN setting, the attachment will be lowered even though the engine is stopped. Page 29 3. Descent speed adjust knob Descending speed can be pre-adjusted to compensate for the weight of the attachment. Adjust the knob so that an attachment will be lowered to the ground from its highest position within l-2 seconds with the lift lever in the FAST DOWN position. Thus, lighter attachments may require more FAST pre-adjustment and heavier attachments may require more SLOW pre-adjustment. Page 30 5. PRE-OPERATION CHECKS For safe and efficient operation, before using the tractor. Follow the procedures each use: below always perform and check the pre-operation all of the following checks items before 1. Park the tractor on a level surface. 2. Lock the parking brake, set the transmission lever in “N” (Neutral) and the front and rear P.T.O. levers in the “OFF” positions. 3. Disconnect the spark plug cap and remove the key to prevent accidental engine start-up. Remove the dipstick and wipe it clean. 3. Reinsert the dipstick. 4. Check the oil level shown on the dipstick. If near or below the lower level mark, fill to the upper level mark with the recommended oil. 5. Install the oil level dipstick securely. Page 32 Fuel level Turn the engine switch (ignition switch) ON and check the fuel gauge. If the fuel level is low, pour gasoline through the filler opening slowly up to the UPPER level line on the filler neck.

Fuel tank capacity: 9.3 P (2.5 US gal). Gasoline is extremely flammable, and gasoline vapor can explode. Use extreme care when handling gasoline. Keep gasoline out of reach of children.. Refuel in a well ventilated area with the engine stopped. Keep flames and sparks away, and do not smoke in the area. Page 33 Fuel recommendation Use unleaded gasoline with a pump octane rating of 86 or higher. This engine is certified to operate on unleaded gasoline. Unleaded gasoline produces fewer engine and spark plugs deposits and extends exhaust system life. Avoid getting dirt or water in the fuel tank. Occasionally you may hear light’spark knock”or”pinging”(metallic rapping noise)while operating under heavy loads.This is no cause for concern. Page 34 Oxygenatedfuels Some conventional gasolines are being blended with alcohol or an ether compound. These gasolines are collectively referred to as oxygenated fuels. To meet clean air standardssome areas of the United Sates and Canada use oxygenated fuels to help reduce emissions. If you use an oxygenated fuel,be sure it is unleaded and meets the minimum octane rating requirement. Before using an oxygenated fuel, try to confirm the fuel’s contents. Page 35 Air cleaner Check that the air cleaner elements are clean and in good condition. A dirty air cleaner will restrict air flow to the carburetor, reducing engine performance. A damaged air cleaner will allow dirt to enter the engine, causing rapid engine wear. 1. Open the hood and remove the wing nuts to remove the air cleaner cover and air cleaner elements. 2. Inspect the air cleaner elements. Clean or replace the elements if necessary. Page 36 Coolant If there is no coolant in the leaks and repair if necessary.Page 37 Battery Open electrolyte the hood, level and check the battery electrolyte level. The electrolyte level must be kept between the UPPER and LOWER level marks.

If the electrolyte level is near the LOWER mark, remove the battery filler caps and carefully add distilled water to each cell until the liquid reaches the upper level line (see page 88).. UPPER LEVEL LOWER LEVEL m Batteries produce explosive gases. Flames or sparks can cause an explosion, causing serious injury or blindness. Page 38 Hydraulic lift system oil leakage inspection Open the hood, raise the seat, and visually oil leakage with the engine OFF. If there is any sign of cracks or oil leakage, tractor dealer for service.Avoid inspect contact the oil line for cracks your authorized fluid under pressure can penetrate checking the oil lines while the or Honda the skin engine is OIL LINE Front P.T.O. belts Visually inspect the front P.T.O. Page 39 Fan belt Visually inspect the fan belt for wear or damage. If worn or damaged, tact your authorized Honda tractor dealer to have it serviced. Brake pedal con- free play Measure the brake pedal free play from fully released to the point you can feel the brake begin to take hold. Free play should be 20-30 mm (0.81.2 in). Consult your authorized Honda tractor dealer if free play is out of specification, or the brake does not operate properly. Page 40 Brake wear indicator Inspect brake lining condition every time the tractor is used. Firmly set the parking brake, and then check the position of the brake wear indicator. If the wear indicator line up with right axle tube flange, consult your authorized Honda tractor dealer for repair.Thereafter, retighten them every 50 hours. Page 42 Hydraulic I tion) lift tractor pushing DOWN lift system fluid Before performing this inspection, lower the front and rear (oparms fully and confirm they are at their lowest positions. If the is not equipped with any attachment, lower the lift arms by them down by hand with the hydraulic lift lever set in the FAST position. Remove the filler cap, wipe off the dipstick and reinsert it until the dipstick is fully seated.

Page 43 Seat adjustment Make sure the seat and seat bolts are properly adjusted and securely mounted. If necessary: 1. Loosen the four seat mounting bolts. 2. Move the seat to a position that allows you to reach all controls easily and comfortably. 3. Tighten the seat mounting bolts securely. SEAT MOUNTING BOLT (4) Steering Check the steering free play with the wheels straight ahead. There should be less than 30 mm (1.2 in) of steering wheel rotation before the front wheels start to turn. Page 44 Parking brake Make sure that the parking brake and warning buzzer system operate properly. Turn the ignition switch ON but do not start engine, move the main transmission lever to any position (other than NEUTRAL), push the brake pedal and apply the parking brake lock lever. PARKING BRAKE WARNING BUZZER PARKING 6RAKti BRAKE LOCK LEVER PEDAL Headlight Turn the engine headlight switch. Page 45 Safety interlock m the tractor system Before inspecting, is clear of people, ensure that the area in front pets and obstacles. This tractor is equipped with a series of inhibitor the engine from being started unless the proper followed. Observe the following procedures switches.Page 46 - 2. Front P.T.O. (I) (2) (3) (4) (5) - switch N Move the main transmission lever to NEUTRAL, and the rear P.T.O. lever to OFF. Move the front P.T.O. clutch lever to ON. Turn the ignition switch key to START. The starter should not operate. Attach the spark plug cap to the spark plug securely.Page 48 Hydraulic lift system NOTE: l To make this inspection, it is necessary to start the engine; refer to the procedures described on Page 47.Check either, by selecting the appropriate hydraulic cylinder selector lever position. (I 1 Start the engine. Page 49 6. 1. Starting OPERATION the engine m Exhaust contains poisonous carbon monoxide gas that may cause loss of consciousness and lead to death. Never run the engine in an enclosed area. Be sure to provide adequate ventilation. I.

Sit on the seat and check that the parking brake lock lever is set. 2. Make sure the main transmission lever is in NEUTRAL, both the front (option) and rear P.T.O. levers are OFF and the lift lever is in the center (Neutral) position. NEUTRAL MAIN TRANSMISSION LEVER FRONT P.T.O. Page 50 4. Turn the engine switch (ignition the key when the engine starts.If the engine fails to start, release the engine switch (ignition switch) key, and wait at least IO seconds before operating the starter motor again. 5. As the engine position.TONGUE l read TLATE Wear the seat belt whenever operating the tractor with the Rollover Protective Structure attached. Use of either device (seat belt or ROPS) without crease the rollover.LEVER m Alwavs release the clutch pedal slowlv when starting the tractor in motion. Sudden starts can damage the equipment or cause loss of vehicle control that may result in severe personal injury. Do not start out suddenly or with the steering wheel turned to one side.Take care when using the differential The differential surface causes lock is most useful in situations where one of the rear wheels to lose traction.Prior to shifting, set the steering wheel in the straight-ahead position, bring the tractor to a complete stop and depress the clutch pedal fully. NOTE: If difficulty is encountered gears by driving the tractor a short engaged. Page 57 I 5. Turning This tractor carefully.Wheel Steering, read the following accidental information on uneven Slow down tip over: Never make abrupt starts while the wheels are turned. Avoid sharp turns in rutty or uneven terrain. Engaging the differential lock while making sharp turns can cause to lose steering control. Be sure to raise ground engaging attachments (rotary tillers, disk plows, etc. Page 58 6. Attachment limitations Use of Honda attachments is recommended.

If an attachment exceeds the limits shown below or it is not suited to H5518, or if the counterweights used do not conform to the sizes and weights specified in “Counterweight Table”, they may not only endanger operators or equipment but also prevent you from taking the fullest advantage of your tractor. Never use attachments which exceed sizes and weights specified.Page 60 l l l l l l Towing Never attempt to tow anything without a trailer hitch. Failure to use a proper hitch could cause the tractor to overturn resulting in severe personal injury or equipment damage. Never allow anyone to ride in the trailer. Traveling and turning at high speeds while towing a trailer or other attachment is dangerous. Use 1st gear when towing a trailer or attachment over rough ground. NOTE: Tongue trailer hitch. Page 62 Counterweight l When an attachment is fitted to the FRONT or REAR, the weight balance between front and rear wheels is lost, which may lead to instability while the vehicle is running (front wheel lift, etc.). To avoid this, it is necessary to fit a counterweight to regain front-rear wheel balance. Make suitable counterweight settings according to the list below.In this table, the calculation. I None Trailer Front-Mount Rotary-Mower tire tire 2WD I tire counterweights Rear wheel weight: 2 (one for I each wheel) AG Rear: 8 Turf Turf IS based on the assumption I that the weight of each counterweight is about 11 kg (25 lb), and the weight of each rear wheel is about 20 kg (44 lb), respectively. Page 64 2. Front Attachment and Counterweight The number in the box indicates required. NOTE: This table is based ly 11 kg (25 Ibs). Always drive up or down a slope.. Making turns on a slope can cause the tractor to tip over and you can be injured. Drive straight up or straight down slopes. Page 66 UPHILL STARTING PROCEDURE If possible avoid stopping the tractor while driving uphill.

Abruptly applying the brake pedal while the tractor is rolling backwards down a slope may cause the tractor to tip over. Page 67 8. Stopping l the engine In an emergency: Turn the engine switch (ignition switch) Depress the clutch and brake pedal. 0 In normal - 1, Move use: the throttle - 2. Depress Move OFF. lever to “SLOW.” the clutch and brake pedals simultaneously.Page 68 - 3. Shift the front and rear P.T.O. levers to the “OFF” position. OFF FRONT P.T.O. - 4. Lower CLUTCH LEVER any attachment HYDRAULIC - 5. Turn key. the engine switch REAR P.T.O. to the ground LEVER with the hydraulic lift lever. Page 69 - 6. Push down pedal. the park brake lock lever while depressing the brake PARK BRAKE LOCK LEVER I BRAKE’PEDAL m To avoid injury to yourself and others, before leaving the tractor unattended, ALWAYS: park on level ground, disengage the power take-off (P.T.O.), lower the attachment, set the parking brake, stop the engine and remove the key. Page 70 9. Recommended working Select a safe and correct the chart below. Page 71 10. High altitude operation At high altitude, the standard carburetor air-fuel mixture will be too rich. Performance will decrease, and fuel consumption will increase. Avery rich fuel mixture may also foul the spark plugs and cause hard starting. High altitude performance can be improved by specific modifications to the carburetor. If you always operate your engine at altitudes above 1,800 meters (6,000 feet), have your dealer perform this carburetor modification. Page 72 7. TRANSPORTING Transporting system become hot during operation m The engine and exhaust Contact with hot engine comand remain hot for a while after stopping.Avoid touching the engine or exhaust system for at least the engine has stopped. Allow the engine to cool before tractor. II another To wing the tractor behind another vehicle can damage the tractor. Page 73 3. After loading, apply the parking (ignition switch) key. 4. Tie the tractor down securely.

Tie-down hooks shown below. 1 NOTICE l l should brake and remove be on or near the floor.Both front and rear restraints must be directed down and outward form tractor. Page 74 8. INSTALLING Before installing and precautions.Remove the key from the ignition, and disconnect the spark plug caps to prevent start-up.It will also help reduce air pollution. Improper maintenance, or failure to correct a problem before operation, can cause a malfunction in which you can be seriously hurt or killed. Always follow the inspection and maintenance schedules in this owner’s manual. Page 79 Maintenance Safety Some of the most important safety precautions follow. However, we cannot warn you of every conceivable hazard that can arise in performing maintenance. Only you can decide whether or not you should perform a given task. Failure to properly follow maintenance instructionsand cause you to be seriously hurt or killed. Always follow the procedures and precautions precautionscan in the owner’s manual. Page 80 Emission Control System Source of Emissions The combustion process produces carbon monoxide, oxides of nitrogen, and hydrocarbons. Control of hydrocarbons and oxides of nitrogen is very impprtant because, under certain conditions, they react to form photochemical smog when subjected to sunlight. Carbon monoxide does not react in the same way, but it is toxic. Honda utilizes lean carburetor settings and other systems to reduce the emissions of carbon monoxide, oxides of nitrogen, and hydrocarbons. The U.S. Page 81 Problems That May Affect Emissions If you are aware of any of the following symptoms, have your engine inspected and repaired by your servicing dealer.Page 82 Replacement Partss The emission control systems on your Honda engine were designed, built, and certified to conform with EPA and California emission regulations. We recommend the use of genuine Honda parts whenever you have maintenance done.