1. Manuals
  2. Brands
  3. Honda Manuals
  4. Motorcycle
  5. GROM125/A 2020
  6. Manual

Honda GROM125/A 2020 Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Contents
31K26A50
2020 Grom (GROM125/A)
MOM 17041 (1901)
P. 2
P. 16
P. 35
P. 78
P. 93
P. 115
P. 119

Advertisement

Table of Contents
loading

Related Manuals for Honda GROM125/A 2020

Summary of Contents for Honda GROM125/A 2020

  • Page 1: Table Of Contents

    Contents Motorcycle Safety P. 2 Operation Guide P. 16 Maintenance P. 35 Troubleshooting P. 78 Information P. 93 Specifications P. 115 Index P. 119 2020 Grom (GROM125/A) 31K26A50 MOM 17041 (1901)
  • Page 2 When service is required, remember that Honda motorcycle. Your selection of a your Honda dealer knows your motorcycle Honda makes you part of a worldwide family best. If you have the required mechanical of satisfied customers who appreciate “know-how” and tools, you can purchase an...
  • Page 3 A Few Words About Safety DANGER Your safety, and the safety of others, is very important. Operating this motorcycle safely is You WILL be KILLED or SERIOUSLY an important responsibility. HURT if you don’t follow instructions. To help you make informed decisions about safety, we have provided operating WARNING procedures and other information on safety...

  • Page 4: Motorcycle Safety

    Motorcycle Safety This section contains important information for safe riding of your motorcycle. Please read this section carefully. Safety Guidelines ..........P. 3 Safety Labels............P. 7 Safety Precautions..........P. 9 Riding Precautions ..........P. 10 Accessories & Modifications......P. 14 Loading ..............

  • Page 5: Safety Guidelines

    Safety Guidelines Safety Guidelines Before Riding Make sure that you are physically fit, mentally Follow these guidelines to enhance your safety: focused and free of alcohol and drugs. Check Perform all routine and regular inspections ● that you and your passenger are both wearing specified in this manual.
  • Page 6 Safety Guidelines We recommend that all riders take a certified Make Yourself Easy to See course approved by the Motorcycle Safety Make yourself more visible, especially at night, Foundation (MSF). New riders should start with by wearing bright reflective clothing, positioning the basic course, and even experienced riders yourself so other drivers can see you, signaling will find the advanced course beneficial.
  • Page 7 Safety Guidelines and bolts, and check the handlebar, control Keep Your Honda in Safe Condition levers, brakes, and wheels. Ride slowly and It's important to keep your motorcycle properly cautiously. maintained and in safe riding condition. Your motorcycle may have suffered damage Inspect your motorcycle before every ride and that is not immediately apparent.
  • Page 8 Safety Guidelines WARNING Carbon Monoxide Hazard Exhaust contains poisonous carbon monoxide, a Running the engine of your motorcycle colorless, odorless gas. Breathing carbon while in an enclosed or even partially monoxide can cause loss of consciousness and enclosed area can cause a rapid build- may lead to death.

  • Page 9: Safety Labels

    Safety Labels Safety Labels If a label comes off or becomes hard to read, contact your dealer for a replacement. Safety and information labels on your motorcycle provide important safety information and may warn you of potential hazards that could cause serious injury. Read these labels carefully and don't remove them.
  • Page 10 Safety Labels...

  • Page 11: Safety Precautions

    Safety Precautions Safety Precautions Face shield with unobstructed field of vision ● or other approved eye protection Ride cautiously and keep your hands on the ● handlebar and feet on the footpegs. Look for a DOT (Department of Keep passenger's hands onto the seat strap Transportation) certification label on any helmet ●...

  • Page 12: Riding Precautions

    Riding Precautions Riding Precautions Boots or Riding Shoes Sturdy boots with non-slip soles and ankle protection Break-in Period Jacket and Pants During the first 300 miles (500 km) of running, Protective, highly visible, long-sleeved jacket follow these guidelines to ensure your and durable long pants for riding (or a motorcycle's future reliability and performance.
  • Page 13 Riding Precautions Exercise caution on low traction surfaces. ABS does not reduce braking distance. In ● ● The tires slip more easily on such certain circumstances, ABS may result in a surfaces and braking distances are longer stopping distance. longer. ABS does not function at speeds below 6 ●...
  • Page 14 Riding Precautions Wet or Rainy Conditions Parking Road surfaces are slippery when wet, and wet Park on a firm, level surface. ● brakes further reduce braking efficiency. If you must park on a slight incline or loose ● Exercise extra caution when braking in wet surface, park so that the motorcycle cannot conditions.
  • Page 15 Riding Precautions Parking with the Side Stand Refueling and Fuel Guidelines Stop the engine. Follow these guidelines to protect the engine, Push the side stand down. fuel system and catalytic converter: Slowly lean the motorcycle to the left until its Use only unleaded gasoline.

  • Page 16: Accessories & Modifications

    We strongly advise that you do not add any seriously hurt or killed. accessories that were not specifically designed or approved for your motorcycle by Honda or Follow all instructions in this owner's make modifications to your motorcycle from its manual regarding accessories and original design.

  • Page 17: Loading

    Loading Loading Carrying extra weight affects your ● motorcycle's handling, braking and stability. Always ride at a safe speed for the load you are carrying. Avoid carrying an excessive load and keep ● within specified load limits. Maximum weight capacity P.

  • Page 18: Operation Guide

    Basic Operation Flow Pre-ride Inspection (P.42) Acceleration Carefully inspect your motorcycle to make sure that it is safe to ride. Apply throttle gradually. Obey the speed limit. Shift Change (P.32) Starting the Engine (P.30) Start and warm the engine. Avoid revving the engine. Starting the How to use basic features.
  • Page 19 Parking (P.12) Braking Close the throttle and apply the Park on a firm level surface. front and rear brakes together. Use the stand, and lock the The brake light will indicate that steering. you have applied the brakes. Stopping If pulling off the road, signal early enough to show traffic that you are pulling over, and pull over smoothly.
  • Page 20 Parts Location Tool kit Canada only (P.34) Fuse box (P.91) Battery (P.56) Rear brake fluid reservoir (P.64) Front brake fluid reservoir (P.64) Throttle grip (P.75) Front brake lever Headlight (P.77) Engine oil fill cap/dipstick (P.60) Air cleaner (P.63) Spark plug (P.58) Engine oil drain bolt (P.62)
  • Page 21 Clutch lever (P.72) Fuel fill cap (P.33) Document bag (P.34) Seat (P.57) Helmet holder (P.34) Crankcase breather (P.76) Seat lock (P.57) Drive chain (P.68) Side stand (P.67) Shift lever (P.32)
  • Page 22 Instruments button button Tachometer red zone (excessive engine rpm range) Tachometer NOTICE Do not operate the engine in the tachometer red zone. Excessive engine speed can adversely affect engine life.
  • Page 23 Display Check When the ignition switch is turned on, all the mode and digital segments will show. If any part of these displays does not come on when it should, have your dealer check for problems. Speedometer Fuel gauge Remaining fuel when only 1st (E) segment starts flashing: approximately 0.375 US gal (1.42 L) If the fuel gauge indicator flashes in a repeat pattern or turns off:...
  • Page 24 Instruments (Continued) Odometer [TOTAL] & Tripmeter [TRIP A/B] button switches between the odometer and tripmeters. Odometer: Total distance ridden. ● Tripmeter: Distance ridden since ● tripmeter was reset (press and hold the button to reset to 0.0 mile/km). Clock (12-hour display) button button...
  • Page 25 Display Setting To set the clock: You can adjust the following settings. Turn the ignition switch on. Press and hold the buttons Clock setting ● until the hour digits start flashing. Changing of speed and mileage unit ● If the button was not pressed during the adjustment, and no buttons were pressed for about 30 seconds, the display will stop...
  • Page 26 Instruments (Continued) Press the button until the desired Changing the speed and mileage minute is displayed. unit: Press and hold to advance the minute Press the button to select either “mph” fast. and “mile” or “km/h” and “km”. Press the button.
  • Page 27 Indicators If one of these indicators does not come on when it should, have your dealer check for problems. PGM-FI (Programmed Fuel Injection) malfunction indicator lamp (MIL) Comes on briefly when the ignition switch is turned on with the engine stop switch in the (Run) position.
  • Page 28 Switches Engine stop switch Should normally remain in the (Run) position. In an emergency, switch to the (Stop) position (the starter motor will not operate) to stop the engine. Start button Turn signal switch Pressing the switch turns the turn signal off. Horn button Headlight dimmer switch •...
  • Page 29 Ignition switch Switches the electrical system on/off, locks the steering. Key can be removed when in the OFF or LOCK position. Turns electrical system on for starting/riding. Turns engine off. LOCK Lock steering. Continued...
  • Page 30 Switches (Continued) Steering Lock Locking Turn the handlebar all the way to the left. Lock the steering when parking to help Push the key down, and turn the ignition prevent theft. switch to the LOCK position. A U-shaped wheel lock or similar device is Jiggle the handlebar if the lock is difficult also recommended.
  • Page 31 Retractable Ignition Key Avoid contact with the key whenever it To release the key extends or retracts. Press the release button to release the key out from the key case. Key case Make sure to fully extend the key. Press Release button To retract the key Push the key inside the key case until you...
  • Page 32 Starting the Engine Start your engine using the following NOTICE procedure, regardless of whether the engine If the motorcycle is transported to a place 6,500 is cold or warm. feet (2,000 m) higher or lower than the start point, you may not be able to achieve sufficient engine performance at the new altitude.
  • Page 33 Press the start button with the throttle If the engine does not start: completely closed. Open the throttle fully and press the start If you cannot start the engine, open the button for 5 seconds. throttle slightly (about 0.1 in (3 mm), Repeat the normal starting procedure.
  • Page 34 Shifting Gears Your motorcycle transmission has 4 forward Recommended Shift Points gears in a one-down, three-up shift pattern. Shifting Up From 1st to 2nd 12 mph (20 km/h) From 2nd to 3rd 19 mph (30 km/h) From 3rd to 4th 25 mph (40 km/h) Shifting Down From 4th to 3rd...
  • Page 35 Refueling Opening the Fuel Fill Cap Lock cover Ignition Open the lock cover, insert the ignition key, and turn it clockwise to open the fuel fill cap. Closing the Fuel Fill Cap After refueling, push the fuel fill cap until it locks.
  • Page 36 Storage Equipment Document bag is located underside of the The Helmet holder is located under the seat. seat by the rubber strap. Tool kit is located under the seat Canada only Helmet holder by the rubber strap. Rubber strap Rubber strap Document bag Tool kit Canada only...

  • Page 37: Maintenance

    Please read “Importance of Maintenance” and “Maintenance Fundamentals” carefully before attempting any maintenance. Refer to “Specifications” for service data. An optional larger tool kit may be available. Check with your Honda dealer's parts department. Importance of Maintenance ......P. 36 Throttle ..............P. 75 Maintenance Schedule........

  • Page 38: Importance Of Maintenance

    Importance of Maintenance WARNING Importance of Maintenance Keeping your motorcycle well-maintained is Improperly maintaining your absolutely essential to your safety and to motorcycle or failing to correct a protect your investment, obtain maximum problem before you ride can cause a performance, avoid breakdowns, and reduce air crash in which you can be seriously hurt pollution.
  • Page 39 Importance of Maintenance For information about the exhaust emission and Maintenance Safety noise emission requirements of the U.S. Always read the maintenance instructions Environmental Protection Agency (EPA), the before you begin each task, and make sure that California Air Resources Board (CARB), and the you have the tools, parts, and skills required.

  • Page 40: Maintenance Schedule

    Maintenance work should be performed in the new owner. accordance with Honda's standards and specifications by properly trained and equipped technicians. Your dealer meets all of these requirements. All scheduled maintenance is considered a normal owner operating cost and will be charged to you by your dealer.
  • Page 41 Clean mechanically skilled. Lubricate Procedures are provided in an official Honda Service Replace Manual (2 P. 110). : Technical. In the interest of safety, have your motorcycle serviced by your dealer.
  • Page 42 Maintenance Schedule Frequency Items × 1,000 mi Regular Refer to Replace page × 1,000 km 12.8 19.2 25.6 32.0 38.4 Drive Chain Every 300 mi (500 km): Brake Fluid 2 Years Brake Pads Wear Brake System Brake Light Switch Headlight Aim Clutch System Side Stand Suspension...

  • Page 43: Maintenance Record

    Maintenance Record Distance Odometer Date Performed By: Notes 600 miles (1,000 km) 4,000 miles (6,400 km) 8,000 miles (12,800 km) 12,000 miles (19,200 km) 16,000 miles (25,600 km) 20,000 miles (32,000 km) 24,000 miles (38,400 km) 28,000 miles (44,800 km) 32,000 miles (51,200 km) 36,000 miles (57,600 km) 40,000 miles (64,000 km)

  • Page 44: Maintenance Fundamentals

    Maintenance Fundamentals Pre-ride Inspection Check the following items after you get on your To ensure safety, it is your responsibility to motorcycle: perform a pre-ride inspection and make sure Throttle action moves smoothly without ● that any problem you find is corrected. A pre- binding.
  • Page 45 Maintenance Fundamentals Periodic Checks You should also perform other periodic maintenance checks at least once a month regardless of how often you ride, or more often if you ride frequently. Also, check the odometer reading against the Maintenance Schedule and perform all maintenance that is due.
  • Page 46 Maintenance Fundamentals WARNING Replacing Parts Always use Honda Genuine Parts or their Installing non-Honda parts may make equivalents to ensure reliability and safety. your motorcycle unsafe and cause a crash in which you can be seriously hurt When ordering colored components, specify or killed.
  • Page 47 Maintenance Fundamentals Electrolyte splashes onto your skin: Battery ● Remove affected clothing and wash your Your motorcycle has a maintenance-free type skin thoroughly using water. battery. You do not have to check the battery Electrolyte splashes into your mouth: ● electrolyte level or add distilled water.
  • Page 48 30 days using a charger designed specifically for If the terminals are heavily corroded, clean your Honda, which can be purchased from your and polish the terminals with a wire brush or dealer. Read the information that came with sandpaper.
  • Page 49 Bump starting is also not recommended. NOTICE Installing non-Honda electrical accessories can NOTICE overload the electrical system, discharging the Replacing a fuse with one that has a higher rating greatly battery and possibly damaging the system.
  • Page 50 Conserving” or “Resource Conserving” on the For recommended engine oil, see circular API service symbol. “Specifications.” P. 116 If you use non-Honda engine oil, check the label to make sure that the oil satisfies all of the following standards: JASO T 903 standard : MA ●...
  • Page 51 Wipe up spills immediately and wash thoroughly. dealer. Recommended brake fluid: Also inspect the drive sprocket and driven Honda DOT 3 or DOT 4 Brake Fluid or sprocket. If either has worn or damaged teeth, equivalent have the sprocket replaced by your dealer.
  • Page 52 Use a dry cloth with high flash-point solvent. Use a soft brush if the chain is dirty. After cleaning, wipe dry and lubricate with the recommended lubricant. Recommended lubricant: Pro Honda HP Chain Lube or equivalent...
  • Page 53 Maintenance Fundamentals Inspecting for Damage Crankcase Breather Inspect the tires for Service more frequently when riding in rain, at cuts, slits, or cracks that full throttle, or after the motorcycle is washed or exposes fabric or overturned. Service if the deposit level can be cords, or nails or other seen in the transparent section of the drain foreign objects...
  • Page 54 Maintenance Fundamentals WARNING Inspecting Tread Depth Inspect the tread wear indicators. If they Riding on tires that are excessively worn become visible, replace the tires immediately. or improperly inflated can cause a crash in which you can be seriously hurt or killed.
  • Page 55 Maintenance Fundamentals Have your tires replaced by your dealer. WARNING For recommended tires and air pressure, see “Specifications.” P. 116 Installing improper tires on your Follow these guidelines whenever you replace motorcycle can adversely affect tires. handling and stability, and can cause a Use the recommended tires or equivalents ●...
  • Page 56 Maintenance Fundamentals Tire Identification Number (TIN) Tire Service Life The tire identification number (TIN) is a group The service life of your tires is dependent on of numbers and letters located on the sidewall many factors, including, but not limited to, of the tire.
  • Page 57 Maintenance Fundamentals Air Cleaner This motorcycle is equipped with a viscous type air cleaner element which cannot be cleaned with compressed air or otherwise without degrading its performance. If the filter becomes dirty, replace it with a new one.

  • Page 58: Removing & Installing Body Components

    Removing & Installing Body Components Battery Remove the seat. P. 57 Remove the battery holder by removing the bolt. Battery holder Bolt Disconnect the negative - terminal from the battery. Disconnect the positive + terminal from the battery. Positive terminal Remove the battery taking care not to drop the terminal nuts.

  • Page 59: Seat

    Removing & Installing Body Components Seat Seat Removal Insert the ignition key into the seat lock. Turn it clockwise, then pull the seat up Prongs and backward. Seat Installation Insert the prongs into the stays on the frame. Push forward and down on the rear of the seat until it locks in place.

  • Page 60: Spark Plug

    Spark Plug Checking Spark Plug For the recommended spark plug, see “Specifications.” P. 116 Use only the recommended type of spark plug in the recommended heat range. NOTICE Using a spark plug with an improper heat range can cause engine damage. Spark plug cap Disconnect the spark plug cap from the spark plug.
  • Page 61 Spark Plug Checking Spark Plug Check the spark plug gap using a wire- Tighten the spark plug: type feeler gauge. If the old plug is good: ● If adjustment is necessary, bend the 1/8 turn after it seats. side electrode carefully. If installing a new plug, tighten it twice ●...

  • Page 62: Engine Oil

    Engine Oil Checking the Engine Oil If the engine is cold, idle the engine for 3 Upper level to 5 minutes. Turn the ignition switch to the OFF position and wait for 2 to 3 minutes. Place your motorcycle in an upright position on a firm, level surface.
  • Page 63 Engine Oil Adding Engine Oil Adding Engine Oil NOTICE Overfilling with oil or operating with insufficient oil can cause damage to your engine. Do not mix If the engine oil is below or near the lower different brands and grades of oil. They may level mark, add the recommended engine oil.
  • Page 64 Engine Oil Changing Engine Oil Place a drain pan under the drain bolt. Install a new sealing washer onto the Remove the oil fill cap/dipstick, drain bolt drain bolt. Tighten the drain bolt. and sealing washer to drain the oil. Torque: 18 lbf·ft (24 N·m, 2.4 kgf·m) Discard the oil at an approved recycling center.

  • Page 65: Air Cleaner

    Air Cleaner Changing Air Cleaner Element Screws Use a new Honda Genuine air cleaner element or an equivalent specified for your motorcycle. NOTICE Using the wrong air cleaner element may cause premature engine wear or performance problems. Remove the air cleaner case cover by Screws removing the screws.

  • Page 66: Brakes

    Brakes Checking Brake Fluid If the brake fluid level in either reservoir is below the LWR or LOWER level mark or the Place your motorcycle in an upright brake lever and pedal freeplay becomes position on a firm, level surface. excessive, inspect the brake pads for wear.
  • Page 67 Brakes Inspecting the Brake Pads Inspecting the Brake Pads Brake pads Front Check the condition of the brake pad wear indicators. The pads need to be replaced if a brake pad is worn to the indicator. Inspect the brake pads from below Front Wear the brake caliper.
  • Page 68 Brakes Adjusting the Brake Light Switch Adjusting the Brake Light Switch Check the operation of the brake light switch. Hold the brake light switch and turn the adjusting nut in the direction A if the switch operates too late, or turn the nut in the direction B if the switch operates too soon.

  • Page 69: Side Stand

    Side Stand Checking the Side Stand Sit on the motorcycle, shift the transmission to Neutral, and raise the side stand. Start the engine, pull the clutch lever in, and shift the transmission into gear. Lower the side stand all the way. The engine should stop as you lower the side stand.

  • Page 70: Drive Chain

    Drive Chain Inspecting the Drive Chain Slack Check the drive chain slack at several points along the chain. If the slack is not constant at all points, some links may be kinked and binding. Have the chain inspected by your dealer. Shift the transmission to Neutral.
  • Page 71 Drive Chain Adjusting the Drive Chain Slack Adjusting the Drive Chain Slack Rear axle nut Rear edge of Adjusting the chain requires special tools. adjusting slot Have the drive chain slack adjusted by your Adjusting dealer. Shift the transmission to Neutral. Stop the Chain adjuster engine.
  • Page 72 Drive Chain Adjusting the Drive Chain Slack Turn both adjusting nuts an equal Tighten the rear axle nut. number of turns until the correct drive Torque: 44 lbf·ft (59 N·m, 6.0 kgf·m) chain slack is obtained. Turn the adjusting nuts clockwise to tighten the chain. Turn Tighten the drive chain adjusting nuts the adjusting nuts counterclockwise to lightly, then hold the adjusting nuts and...
  • Page 73 Drive Chain Adjusting the Drive Chain Slack Checking the Drive Chain Wear If the drive chain slack is excessive when the rear axle is moved to the furthest limit of adjustment, the drive chain is worn and must be replaced. Chain: DID 420D If necessary have the drive chain replaced by your dealer.

  • Page 74: Clutch

    Clutch Checking the Clutch Check the clutch cable for kinks or signs of wear. If necessary have it replaced by your Checking the Clutch Lever Freeplay dealer. Lubricate the clutch cable with a Check the clutch lever freeplay. commercially available cable lubricant to Freeplay at the clutch lever: prevent premature wear and corrosion.
  • Page 75 Clutch Adjusting the Clutch Lever Freeplay Adjusting the Clutch Lever Rubber dust cover Freeplay Upper Adjustment Attempt adjustment with the upper clutch cable adjuster first. Upper lock nut Pull back the rubber dust cover. Loosen the upper lock nut. Upper clutch cable Turn the upper clutch cable adjuster until adjuster the freeplay is 3/8 - 13/16 in (10 - 20 mm).
  • Page 76 Clutch Adjusting the Clutch Lever Freeplay Loosen the upper lock nut and turn the upper clutch cable adjuster all the way in Lower lock nut (to provide maximum freeplay). Tighten the upper lock nut. Loosen the lower lock nut. Turn the lower clutch cable adjusting nut until the clutch lever freeplay is 3/8 - 13/16 in (10 - 20 mm).

  • Page 77: Throttle

    Throttle Checking the Throttle With the engine off, check that the throttle rotates smoothly from fully closed to fully open in all steering positions and throttle freeplay is correct. If the throttle does not move smoothly, close automatically, or if the cable is damaged, have the motorcycle inspected by your dealer.

  • Page 78: Crankcase Breather

    Crankcase Breather Cleaning the Crankcase Breather Place a suitable container to receive deposits. Remove the crankcase breather tube and drain deposits. Reinstall the crankcase breather tube. Crankcase breather tube...

  • Page 79: Other Adjustments

    Other Adjustments Adjusting the Headlight Aim You can adjust vertical aim of the headlight for proper alignment. To move the headlight, loosen the adjusting bolt. Tighten the adjusting bolt after adjustment. Obey local laws and regulations. Headlights Adjusting bolt Raise Lower...

  • Page 80: Troubleshooting

    Troubleshooting Engine Will Not Start........P. 79 Warning Indicators On or Flashing....P. 80 PGM-FI (Programmed Fuel Injection) Malfunction Indicator Lamp (MIL)....P. 80 ABS (Anti-lock Brake System) Indicator ..P. 80 Other Warning Indications......P. 81 Fuel Gauge Failure Indication......P. 81 Tire Puncture ............

  • Page 81: Engine Will Not Start

    Engine Will Not Start Starter Motor Operates But Starter Motor Does Not Engine Does Not Start Operate Check the following items: Check the following items: Check the correct engine starting Check the correct engine starting ● ● sequence. P. 30 sequence.

  • Page 82: Warning Indicators On Or Flashing

    Warning Indicators On or Flashing PGM-FI (Programmed Fuel Indicator comes on or starts flashing while ● riding. Injection) Malfunction Indicator does not come on when the ● Indicator Lamp (MIL) ignition switch is in the ON position. Indicator does not go off at speeds above ●...

  • Page 83: Other Warning Indications

    Other Warning Indications Fuel Gauge Failure Indication If the fuel system has an error, the fuel gauge indicators will be displayed as shown in the illustration. If this occurs, see your dealer as soon as possible.

  • Page 84: Tire Puncture

    Tire Puncture WARNING Repairing a puncture or removing a wheel requires special tools and technical expertise. Riding your motorcycle with a We recommend you have this type of service temporary tire repair can be risky. If the performed by your dealer. temporary repair fails, you can crash After an emergency repair, always have the and be seriously injured or killed.
  • Page 85 Tire Puncture Removing Wheels Front Wheel Remove the front axle shaft, front wheel and side collars. Removal Avoid getting grease, oil, or dirt on the Place your motorcycle on a firm, level disc or pad surfaces. surface. Do not pull the brake lever while the Support your motorcycle securely and front wheel is removed.
  • Page 86 Tire Puncture Removing Wheels Installation After installing the wheel, apply the brake Attach the side collars to the wheel. lever several times, then check if the Position the wheel between the fork legs wheel rotates freely. Recheck the wheel if and insert the front axle shaft from the the brake drags or if the wheel does not right side, through the wheel hub and...
  • Page 87 Tire Puncture Removing Wheels Rear Wheel Remove the drive chain from the driven sprocket by pushing the rear wheel Removal forward. Support your motorcycle securely and raise the rear wheel off the ground using Left side collar Rear axle a maintenance stand or a hoist. shaft Loosen the rear axle nut, lock nuts and turn the adjusting nuts so the rear wheel...
  • Page 88 Tire Puncture Removing Wheels Remove the rear axle shaft, washer, right NOTICE side collar, left side collar and rear wheel. When installing a wheel or caliper into original position, carefully fit the brake disc between the Support the brake caliper assembly so pads to avoid scratching them.
  • Page 89 Tire Puncture Removing Wheels Adjust the drive chain slack. P. 69 Install and tighten the rear axle nut. Torque: 44 lbf·ft (59 N·m, 6.0 kgf·m) After installing the wheel, apply the brake pedal several times, then check if the wheel rotates freely. Recheck the wheel if the brake drags or if the wheel does not rotate freely.

  • Page 90: Electrical Trouble

    Electrical Trouble Battery Goes Dead Burned-out Light Bulb Charge the battery using a motorcycle Follow the procedure below to replace a battery charger. burned-out light bulb. Remove the battery from the motorcycle Turn the ignition switch to the OFF or LOCK before charging.
  • Page 91 Electrical Trouble Burned-out Light Bulb Headlight Brake light/Taillight Brake light/Taillight Headlights The headlights uses several LEDs. The brake light and taillight uses several If there is a LED which is not turned on, see LEDs. your dealer for servicing. If there is a LED which is not turned on, see your dealer for servicing.
  • Page 92 Electrical Trouble Burned-out Light Bulb Front/Rear Turn Signal Bulb License Plate Light Bulb The right and left turn signal bulbs Remove the screws. replacement can be done in the same way. Remove the license plate light cover and Remove the screw. the cover packing.

  • Page 93: Blown Fuse

    Electrical Trouble Blown Fuse Blown Fuse GROM125 Fuse box covers Before handling fuses, see “Inspecting and Replacing Fuses.” P. 47 Fuse Box Fuses Remove the seat. P. 57 Open the fuse box covers. Pull out the fuses one by one to check for Spare fuses a blown fuse.

  • Page 94: Unstable Engine Operation Occurs Intermittently

    Unstable Engine Operation Occurs Intermittently If the fuel pump filter is clogged, unstable engine operation will occur intermittently while riding. Even if this symptom occurs, you can continue to ride your motorcycle. If unstable engine operation occurs even if sufficient fuel is available, have your motorcycle inspected by your dealer as soon as possible.

  • Page 95: Information

    Vehicle Identification Number..... P. 103 Emission Control Systems ......P. 104 Catalytic Converter ......... P. 108 Oxygenated Fuels..........P. 109 Authorized Manuals ........P. 110 Warranty Coverage and Service ....P. 111 Honda Contacts ..........P. 112 Reporting Safety Defects ..... P. 114...

  • Page 96: Keys

    Keys Keys A metal key holder may cause damage to the area surrounding the ignition switch. Ignition Key and Retractable Ignition Be sure to record the key number provided with the key number plate and record it in this manual. Store the key number plate in a safe location.

  • Page 97: Instruments, Controls, & Other Features

    Instruments, Controls, & Other Features Instruments, Controls, & Tripmeter Other Features The tripmeters return to 0.0 when each read- out exceeds 9,999.9. Ignition Switch Document Bag Leaving the ignition switch in the ON position The owner's manual, registration, and insurance with the engine stopped will drain the battery.
  • Page 98 Instruments, Controls, & Other Features High Beam Indicator The high beam indicator will come on briefly due to the capacitor being discharged when the ignition switch is turned to the ON position immediately after the engine is stopped with the high beam.

  • Page 99: Caring For Your Motorcycle

    Frequent cleaning and polishing is important to Thoroughly rinse your motorcycle with ensure the life of your Honda. A clean plenty of clean water and dry with a soft, motorcycle makes it easier to spot potential clean cloth.
  • Page 100 Caring for Your Motorcycle Washing Precautions Do not direct water at the air cleaner: ● Water in the air cleaner can prevent the Follow these guidelines when washing: engine from starting. Do not use high-pressure washers: ● Do not direct water near the headlight: High-pressure water cleaners can ●...
  • Page 101 Caring for Your Motorcycle Aluminum Components Exhaust Pipe and Muffler Aluminum will corrode from contact with dirt, When the exhaust pipe and muffler are painted, mud, or road salt. Clean aluminum parts do not use a commercially available abrasive regularly and follow these guidelines to avoid kitchen cleaning compound.

  • Page 102: Storing Your Motorcycle

    ● surfaces (except matte painted surfaces). For more information about storage, Canada Coat chrome pieces with rust-inhibiting oil. visit our website at www.honda.ca and look up Lubricate the drive chain. P. 49 “Storage Tips” under the “Honda Warranty” in ●...

  • Page 103: Transporting Your Motorcycle

    Transporting Your Motorcycle Transporting Your Motorcycle If your motorcycle needs to be transported, it should be carried on a motorcycle trailer or a flatbed truck or trailer that has a loading ramp or lifting platform, and motorcycle tie-down straps. Never try to tow your motorcycle with a wheel or wheels on the ground.

  • Page 104: You & The Environment

    You & the Environment You & the Environment refuse workers and contaminate drinking water, lakes, rivers, and oceans. Owning and riding a motorcycle can be enjoyable, but you must do your part to protect the environment. Choose Sensible Cleaners Use a biodegradable detergent when you wash your motorcycle.

  • Page 105: Vehicle Identification Number

    Vehicle Identification Number Vehicle Identification Number The VIN and engine serial number uniquely identify your motorcycle and are required in order to register your motorcycle. They may also be required when ordering replacement parts. You should record these numbers and keep them in a safe place.

  • Page 106: Emission Control Systems

    Your motorcycle engine emits combustion Compliance with the terms of the byproducts, including carbon monoxide (CO), Distributor's Warranties for Honda Motorcycle oxides of nitrogen (NOx), and hydrocarbons Emission Control Systems is necessary in order (HC). Gasoline evaporation also emits to maintain a valid emissions system warranty.
  • Page 107 Emission Control Systems Ignition Timing Control System Noise Emission Requirements The ignition timing control system adjusts the The EPA requires that motorcycles built after ignition timing to reduce the amount of HC, January 1, 1983 comply with applicable noise CO, and NOx produced. emission standards for one year or 3,730 miles (6,000 km) after the time of purchase when Secondary Air Injection System...
  • Page 108 Emission Control Systems Crankcase Emissions Control System Noise Emission Control System The engine is equipped with a closed crankcase TAMPERING WITH THE NOISE CONTROL system to prevent discharging crankcase SYSTEM IS PROHIBITED: emissions into the atmosphere. U. S. federal law prohibits, and Canadian Blow-by gas is returned to the combustion provincial laws may prohibit, the following acts chamber through the air cleaner and the intake...
  • Page 109 Emission Control Systems AMONG THOSE ACTS PRESUMED TO Problems Affecting Motorcycle Exhaust CONSTITUTE TAMPERING ARE THE Emissions FOLLOWING ACTS: Have your motorcycle inspected and repaired Removal of, or puncturing the muffler, ● by your dealer if you experience any of the baffles, header pipes or any other following symptoms: component which conducts exhaust gases.

  • Page 110: Catalytic Converter

    A defective catalytic converter contributes to air riding and turn off the engine. Have your pollution and can impair your engine's motorcycle serviced as soon as possible. performance. A replacement unit must be an original Honda part or equivalent.

  • Page 111: Oxygenated Fuels

    Oxygenated Fuels Oxygenated Fuels If you accidentally fill your fuel tank with an oxygenated fuel containing higher percentages, Some conventional fuels blended with alcohol you may experience performance problems. To or an ether compound are available in some resolve the problem, have your dealer drain the locales to help reduce emissions to meet clean fuel tank and replace with the correct fuel.

  • Page 112: Authorized Manuals

    Authorized Manuals Authorized Manuals These Honda manuals are written for the professional technician. However, if you possess The Service Manual used by your the proper tools, observe the safety standards, authorized dealer is available from your Honda and are mechanically capable, you should find dealer or Helm, Inc.

  • Page 113: Warranty Coverage And Service

    Service and deterioration associated with use of the motorcycle. Coverage Your new Honda is covered by the following Your warranty coverage is not voided if you warranties: perform your own maintenance. However, Motorcycle Limited Warranty ●...

  • Page 114: Honda Contacts

    Honda dealer. Make an appointment for an American Honda Motor Co., Inc. inspection and diagnosis. You will be asked to If you wish to contact Honda directly to authorize that inspection, and your dealer will comment on your experiences with your return the results of the inspection.
  • Page 115 Dealer name and address about, riding events, and information about ● safety training available in your local area. We will likely ask your Honda dealer to respond, or possibly acknowledge your comments directly. Your Honda Dealer The service department of your Honda dealer offers trained personnel to perform regular maintenance and most repairs.

  • Page 116: Usa

    Reporting Safety Defects Reporting Safety dealer, or American Honda Motor Co., Defects Inc. If you believe that your vehicle has a To contact NHTSA, you may call the defect which could cause a crash or Vehicle Safety Hotline toll-free at:...

  • Page 117: Specifications

    Specifications Main Components ■ Bore x stroke 2.06 x 2.28 in (52.4 x 57.9 mm) Overall length 69.1 in (1,755 mm) Compression 9.3 : 1 ratio Overall width 28.7 in (730 mm) Unleaded gasoline Overall height 39.4 in (1,000 mm) Fuel Recommended: 86 PON or higher Wheelbase...
  • Page 118 After 1.2 US qt (1.1 L) Rear 29 psi (200 kPa, 2.00 kgf/cm disassembly CPR6EA-9 (NGK) or U20EPR9 Recommended (standard) Honda DOT 3 or DOT 4 Brake Fluid (DENSO) brake fluid (For Recommended Spark plugs extended CPR7EA-9 (NGK) or U22EPR9...
  • Page 119 Specifications Bulbs Torque Specifications ■ ■ Headlight Engine oil drain bolt 18 lbf·ft (24 N·m, 2.4 kgf·m) Brake light/Taillight Air cleaner element screw 0.8 lbf·ft (1.1 N·m, 0.1 kgf·m) Front turn signal 12V-21/5W x 2 Air cleaner case cover screw 0.8 lbf·ft (1.1 N·m, 0.1 kgf·m) Rear turn signal 12V-21W x 2...
  • Page 120 Information Record Engine No. Color Label & Code Owner's Name Address City/State Phone Dealer's Name Address City/State Phone Service Manager...

  • Page 121: Index

    Index Clutch ABS (Anti-lock Brake System)....... 11 Freeplay..............73 ABS (Anti-lock Brake System) Indicator..80 Color Label ............44 Accessories ............14 Crankcase Breather ......... 76 Air Cleaner ..........55, 63 Crash ..............5 Authorized Manuals........110 Drive Chain..........49, 68 Basic Operation Flow ........
  • Page 122 Headlight Dimmer Switch ......26 Maintenance Helmet Holder..........34 Fundamentals ............. 42 High Beam Indicator........25 Importance ............36 Honda Contacts ..........112 Record ..............41 Horn Button ............26 Safety ..............37 Schedule............... 38 Maximum Weight Limit ......... 15 Ignition Cut-off System Modifications............
  • Page 123 Repair Kit ............82 Neutral Indicator ..........25 Reporting Safety Defects......114 Riding Precautions .......... 10 Odometer ............ 22, 95 Safety Guidelines ..........3 Engine ............48, 60 Safety Labels ............7 Oxygenated Fuels.......... 109 Safety Precautions ..........9 Seat ..............57 Shifting Gears ...........
  • Page 124 Rear Removal............85 Tachometer ............20 Throttle............... 75 Tires Air Pressure ............51 Puncture ............... 82 Replacing............51, 82 Tool Kit (Canada only)........34 Transporting Your Motorcycle ....101 Tripmeter............. 22, 95 Troubleshooting ..........78 Turn Signal Indicator ........25 Turn Signal Switch...........
  • Page 125 California Proposition 65 Warning WARNING: Operating, servicing and maintaining a passenger vehicle or off-highway motor vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm.

This manual is also suitable for:

Grom 2020

Table of Contents