The display flickers because the Yamaha Aerox GDR155 performs a self-diagnostic test when the main switch is turned on and the vehicle starts moving at a speed of 10 km/h (6 mi/h) or higher. This test ensures that the system is functioning correctly.

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Summary of Contents for Yamaha Aerox GDR155

Page 1 Read this manual carefully before operating this vehicle. OWNER’S MANUAL GDR155/GDR155-R/GDR155-A BF6-F8199-EY...
Page 2 EAU46093 Read this manual carefully before operating this vehicle. This manual should stay with this vehicle if it is sold.
Page 3 Welcome to the Yamaha world of motorcycling! As the owner of the GDR155/GDR155-R/GDR155-A, you are benefiting from Yamaha’s vast experience and newest tech- nology regarding the design and manufacture of high-quality products, which have earned Yamaha a reputation for de- pendability.
Page 4 Important manual information EAU10134 Particularly important information is distinguished in this manual by the following notations: This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.
Page 5 Important manual information EAU37432 GDR155/GDR155-R/GDR155-A OWNER’S MANUAL ©2017 by Thai Yamaha Motor Co., Ltd. 1st edition, July 2017 All rights reserved. Any reprinting or unauthorized use without the written permission of Thai Yamaha Motor Co., Ltd. is expressly prohibited. Printed in Thailand.
Page 6: Table Of Contents
Table of contents Location of important labels... 1-1 Instrument and control functions ...6-1 Tips for reducing fuel Main switch/steering lock consumption ....... 8-3 Safety information......2-1 (GDR155/GDR155-R) ....6-1 Engine break-in....... 8-4 Further safe-riding points ....2-5 Keyhole cover .........6-2 Parking..........8-4 Helmets ..........
Page 7 Table of contents Changing the brake fluid ....9-23 Storage ......... 10-3 Checking the V-belt.......9-23 Checking and lubricating the Specifications ......... 11-1 cables.........9-23 Checking and lubricating the Consumer information....12-1 throttle grip and cable....9-24 Identification numbers ....12-1 Lubricating the front and rear Vehicle data recording ....
Page 8: Location Of Important Labels
Read and understand all of the labels on your vehicle. They contain important information for safe and proper operation of your vehicle. Never remove any labels from your vehicle. If a label becomes difficult to read or comes off, a replacement label is available from your Yamaha dealer.
Page 9 Location of important labels 100kPa=1bar kPa, psi kPa, psi 200, 29 225, 33 200, 29 225, 33 2BL-F1668-00...
Page 10: Safety Information
Safety information  Never operate a scooter without EAU1026B conspicuous appears to be very proper training or instruction. Take effective in reducing the chance of training course. Beginners this type of accident. Be a Responsible Owner should receive training from a cer- Therefore: As the vehicle’s owner, you are re- tified instructor.
Page 11 Safety information  Many accidents involve inexperi- • Always signal before turning or Protective Apparel enced operators. In fact, many op- changing lanes. Make sure that The majority of fatalities from scooter erators who have been involved in other motorists can see you. accidents are the result of head inju- ...
Page 12 Safety information  Do not run engine outdoors where Avoid Carbon Monoxide Poisoning When loading within this weight limit, All engine exhaust contains carbon engine exhaust can be drawn into keep the following in mind:  Cargo and accessory weight monoxide, a deadly gas.
Page 13 Yamaha accessories, which are avail- characteristics can put you and others effects. Wind may attempt to lift able only from a Yamaha dealer, have at greater risk of serious injury or the scooter, or the scooter may been designed, tested, and approved death.
Page 14: Further Safe-Riding Points
Safety information Aftermarket Tires and Rims cation for the straps carefully so EAU57600 Further safe-riding points The tires and rims that came with your the straps will not rub against  Be sure to signal clearly when scooter were designed to match the painted surfaces during transport.
Page 15: Helmets
Safety information  Always wear a helmet, gloves, EAUU0033 Correct usage Helmets trousers (tapered around the cuff Operating this vehicle without an ap- and ankle so they do not flap), and proved motorcycle helmet increases a brightly colored jacket. your chances of a severe head injury or ...
Page 16 Safety information ZAUU0004 ZAUU0006  Full-type: use only for riding at low to mid-range speeds ZAUU0005  Full-face-type: use for riding at mid-range to high speeds...
Page 17: Description
Description EAU10411 Left view 1,2 4 10,11 1. Front storage compartment (page 6-16) 9. V-belt case air filter element (page 9-15) 2. Auxiliary DC jack (page 6-20) 10.Engine oil drain bolt A (page 9-10) 3. Fuel tank cap (page 6-12) 11.Engine oil drain bolt B (page 9-10) 4.
Page 18: Right View
Description EAU10421 Right view 5 6 7 1. Rear turn signal light (page 9-32) 9. Spark plug (page 9-8) 2. Tail/brake light (page 9-31) 10.Engine oil filler cap (page 9-10) 3. Battery (page 9-27) 4. Fuse box (page 9-28) 5. Headlight (page 9-30) 6.
Page 19: Controls And Instruments
Description EAU32241 Controls and instruments GDR155/GDR155-R 1. Rear brake lever (page 6-11) 2. Left handlebar switches (page 6-10) 3. Multi-function meter unit (page 6-5) 4. Right handlebar switch (page 6-10) 5. Front brake lever (page 6-11) 6. Throttle grip (page 9-17) 7.
Page 20 Description GDR155-A 1. Rear brake lever (page 6-11) 2. Left handlebar switches (page 6-10) 3. Multi-function meter unit (page 6-5) 4. Right handlebar switches (page 6-10) 5. Front brake lever (page 6-11) 6. Throttle grip (page 9-17) 7. Main switch/steering lock (page 6-1)
Page 21: Smart Key System (Gdr155-A)
Smart key system (GDR155-A) EAU76442 Smart key system The smart key system enables you to operate the vehicle without using a mechanical key. In addition, there is an answer-back function to help you lo- cate the vehicle in a parking lot. (See page 4-5.) 1.
Page 22: Operating Range Of The Smart Key System
Smart key system (GDR155-A)  You are carrying or using com- EAU78941 Operating range of the smart munication equipment such as  As the smart key system uses key system radios or mobile phones in weak radio waves, the operating The operating range of the smart key close proximity of the smart key range may be affected by the sur-...
Page 23: Handling Of The Smart Key And Mechanical Keys
Smart key system (GDR155-A)  When leaving the vehicle, make EAU76460 EWA17952 Handling of the smart key and WARNING sure you lock the steering and mechanical keys  The smart key should be carried take the smart key with you. It is recommended that you turn the with you.
Page 24 Yamaha dealer check the vehicle.  If the smart key continually re- ber in case the identification number holders, TVs, and computers.  Keep the smart key away from card is lost.
Page 25: Smart Key
Smart key system (GDR155-A) EAU76470 To check whether the smart key is 2. Turn the main switch to “OFF”, Smart key turned on or off and then push the main switch Push the smart key button to confirm knob once. the current operating status of the 3.
Page 26: Replacing The Smart Key Battery
Smart key system (GDR155-A)  Make sure the battery is in- EAU76480 EWA14724 Replacing the smart key bat- WARNING stalled correctly. Confirm the di- tery  The battery and other remov- rection of the positive/“+” side Replace the battery in the following sit- able parts may cause injury if of the battery.
Page 27: Main Switch
Smart key system (GDR155-A) EAU76490 Main switch 1. Battery 1. Battery 4. Gently snap the smart key case 1. Main switch knob closed. Dispose of the removed battery in ac- cordance with local regulations. 3. Install a new battery as shown. Note the polarity of the battery.
Page 28 Smart key system (GDR155-A) smart key has taken place), the main EAU76500 3. While the smart key system indi- ON (on) switch can be turned while the smart cator light is on, turn the main key system indicator light is on (ap- switch to “ON”.
Page 29 Smart key system (GDR155-A) To turn the vehicle power off EAU76520 To unlock the steering “ ” (lock) 1. With the smart key turned on and within operating range, turn the main switch to “OFF”. 2. The turn signal lights flash once and the vehicle power turns off.
Page 30: Fuel Tank Cap Lid Opening And Closing
Smart key system (GDR155-A) EAU76530 Fuel tank cap lid opening and Make sure that the lid is securely closing closed before riding. To open the fuel tank cap lid 1. With the smart key on and within operating range, push the main switch knob.
Page 31: Seat Opening And Closing
Smart key system (GDR155-A) EAU76541 position for 3 minutes. To stop the Seat opening and closing beeper, move the smart key back to within operating range or turn the main To open the seat switch to “OFF”. To open the seat via the main switch To open the seat with the mechanical 1.
Page 32 Smart key system (GDR155-A) ECA24020 NOTICE Make sure that the keyhole cover is installed when the mechanical key is not being used. To close the seat Close the seat and push down on the rear to lock it in position. Make sure that the seat is properly se- cured before riding.
Page 33: Stop And Start System (Gdr155-A)
System. 2. Set the Stop and Start System emissions, and reduce fuel consump-  Have a Yamaha dealer check the switch to “ ”. tion. battery at the intervals specified in When the rider turns the throttle grip the periodic maintenance chart.
Page 34 Stop and Start System (GDR155-A) 3. When the vehicle confirms that the following conditions are met, the Stop and Start System activates and the Stop and Start System in- dicator light comes on.  The Stop and Start System switch is set to “ ”. ...
Page 35 WARNING not operate correctly, have a activated and the engine is stopped. When placing the vehicle on the Yamaha dealer check the vehicle. Otherwise, the vehicle could start centerstand, be sure to turn the moving unexpectedly after the en- main switch off. If the vehicle is EAU76711 gine restarts.
Page 36 Stop and Start System (GDR155-A) EWA18771 EWA18781 WARNING WARNING  When leaving the vehicle unat- Before performing maintenance, be tended, be sure to turn the main sure to turn the main switch off. If switch off. maintenance is performed while the ...
Page 37: Instrument And Control Functions
Instrument and control functions EAUU1761 To lock the steering Main switch/steering lock  The meter lighting, taillight, license (GDR155/GDR155-R) plate light and auxiliary light come on automatically when the key is turned to “ON”. FUEL  The fuel pump can be heard when PUSH the key is turned to “ON”.
Page 38: Keyhole Cover
Insert the key head into the keyhole that there is no fuel leakage. If cover receptacle as shown, and then fuel is leaking, have a Yamaha turn the key to the right to open the dealer check the vehicle. cover.
Page 39: Indicator Lights And Warning Lights
EAU11032 Turn signal indicator lights “ ” a Yamaha dealer check the electrical and “ ” circuit. Each indicator light will flash when its ECA10022...
Page 40 If this occurs,  does not come on when the main while accelerating the engine with the have a Yamaha dealer check the self- switch is turned on vehicle on its centerstand, but this diagnosis system. (See page 6-9 for an ...
Page 41: Multi-Function Meter Unit
 a fuel meter cator light does not come on or go off  a multi-function display as normal, have a Yamaha dealer check the vehicle. Be sure to turn the main switch on be- fore using the “RESET/SELECT” but-...
Page 42 Instrument and control functions Tachometer This model is equipped with variable Clock valve actuation (VVA) for good fuel economy and acceleration in both the low-speed and high-speed ranges. The VVA indicator comes on when the variable valve actuation system has switched to the high-speed range.
Page 43 “F/ECO” (km/L or L/100 km), the aver- segments will flash repeatedly. If age fuel consumption “AVE F/ECO” this occurs, have a Yamaha dealer (km/L or L/100 km) and the battery check the vehicle. voltage “BATT” in the following order:...
Page 44 Instrument and control functions  “km/L”: The distance that can be Odometer mode traveled on 1.0 L of fuel under the  The odometer will lock at 999999 current riding conditions is shown. and cannot be reset.  “L/100 km”: The amount of fuel ...
Page 45 If the display indicates any error codes, The battery voltage indicator note the code number and have a This indicator shows the current Yamaha dealer check the vehicle. charge state of the battery.  Over 12.8 V Full charge...
Page 46: Handlebar Switches
Instrument and control functions EAU1234M Right (GDR155-A) EAU12501 Handlebar switches Horn switch “ ” Press this switch to sound the horn. Left EAU12722 Start switch “ ” With the sidestand up, push this switch while applying the front or rear brake to crank the engine with the starter.
Page 47: Front Brake Lever
Instrument and control functions EAU12902 EAU12952 EAU77021 Front brake lever Rear brake lever ABS (for ABS models) This model’s ABS (anti-lock brake sys- tem) acts on the front brake system. Operate the brakes as you normally would with a conventional brake sys- tem.
Page 48: Fuel Tank Cap
Instrument and control functions EAUV0681 3. Turn the fuel tank cap counter- Fuel tank cap clockwise and pull it off. The ABS performs a self-diagnosis test each time the vehicle first starts off af- To remove the fuel tank cap To install the fuel tank cap ter the main switch is turned on and the vehicle has traveled at a speed of 10...
Page 49: Fuel
Instrument and control functions EWA11092 EAU13213 Fuel WARNING Make sure there is sufficient gasoline in Make sure that the fuel tank cap is the tank. properly closed after filling fuel. EWA10882 Leaking fuel is a fire hazard. WARNING Gasoline and gasoline vapors are extremely flammable.
Page 50: Fuel Tank Overflow Hose
Instrument and control functions ately. If gasoline spills on your skin, EAU58301 EAU13434 Fuel tank overflow hose Catalytic converter wash with soap and water. If gaso- This model is equipped with a catalytic line spills on your clothing, change converter in the exhaust system. your clothes.
Page 51: Seat (Gdr155/Gdr155-R)
Instrument and control functions ECA10702 EAU62381 EAU37482 Seat (GDR155/GDR155-R) Helmet holders NOTICE Use only unleaded gasoline. The use To open the seat of leaded gasoline will cause unre- 1. Insert the key into main switch and pairable damage to the catalytic then turn it to “OPEN”...
Page 52: Storage Compartments
Instrument and control functions To release a helmet from a helmet EAUV0691 Rear storage compartment Storage compartments holder A helmet can be stored in the rear stor- Open the seat, remove the helmet from age compartment under the seat. (See Front storage compartment the helmet holder, and then close the page 4-11 for seat opening and closing...
Page 53: Sidestand
154 kg (340 lb) (GDR155) in a possible loss of control. possible mold growth, wrap wet Yamaha’s ignition circuit cut-off system has been designed to assist the operator in fulfilling the respon- 6-17...
Page 54: Ignition Circuit Cut-Off System
EAUT1097 Ignition circuit cut-off system fore starting off. Therefore, check Check the operation of the sidestand this system regularly and have a switch according to the following pro- Yamaha dealer repair it if it does not cedure. function properly. 6-18...
Page 55 The vehicle must be placed on the center- stand during this inspection. Put the sidestand up. • If a malfunction is noted, have a Yamaha dealer check the system before riding. Push the start switch while applying either of the brake levers. The engine will start.
Page 56: Auxiliary Dc Jack
Instrument and control functions EAUM2852 3. Remove the auxiliary DC jack cap. Auxiliary DC jack EWA14361 WARNING To prevent electrical shock or short- circuiting, make sure that the cap is installed when the auxiliary DC jack is not being used. ECA15432 NOTICE The accessory connected to the...
Page 57: For Your Safety - Pre-Operation Checks
• If necessary, add recommended coolant to specified level. 9-13 • Check cooling system for leakage. • Check operation. • If soft or spongy, have Yamaha dealer bleed hydraulic system. • Check brake pads for wear. • Replace if necessary. 9-21, 9-22 Front brake •...
Page 58 • Make sure that operation is smooth. • Check throttle grip free play. Throttle grip 9-17, 9-24 • If necessary, have Yamaha dealer adjust throttle grip free play and lubricate ca- ble and grip housing. • Make sure that operation is smooth. Control cables 9-23 •...
Page 59: Operation And Important Riding Points
Do not ride through deep water, oth- See page 8-4 for engine break-in in- understand, ask your Yamaha dealer. erwise the engine may be damaged. structions prior to operating the ve-...
Page 60: Starting Off
Operation and important riding points ECA11043 EAU45093 Starting off NOTICE The ABS warning light should come on 1. While pulling the rear brake lever For maximum engine life, never ac- and stay on until the vehicle reaches a with your left hand and holding the celerate hard when the engine is traveling speed of 10 km/h (6 mi/h) or grab bar with your right hand,...
Page 61: Acceleration And Deceleration
Operation and important riding points EAU16782 EAU16794 EAU16821 Acceleration and deceleration Braking Tips for reducing fuel con- sumption EWA10301 WARNING Fuel consumption depends largely on  Avoid braking hard or suddenly your riding style. Consider the follow- (especially when leaning over to ing tips to reduce fuel consumption: ...
Page 62: Engine Break-In
For smart key models, be sure to during the engine break-in period, Since the engine is brand new, do not turn off the smart key and take with immediately have a Yamaha dealer put an excessive load on it for the first you. check the vehicle.
Page 63 Operation and important riding points Even when the vehicle is parked in a lo- cation partitioned by a fence or the glass window of a shop, if the smart key is within operating range, other people will be able to start the engine and operate the vehicle.
Page 64: Periodic Maintenance And Adjustment
If If you do not have the tools or experi- you are not familiar with vehicle ser- ence required for a particular job, have vice, have a Yamaha dealer perform a Yamaha dealer perform it for you. service.
Page 65: Periodic Maintenance Chart For The Emission Control System
 The annual checks must be performed every year, except if a kilometer-based maintenance is performed in- stead.  From 20000 km, repeat the maintenance intervals starting from 4000 km.  Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and tech- nical skills. EAUU1294...
Page 66: General Maintenance And Lubrication Chart
14 months 18 months • Perform dynamic inspection us- Diagnostic system √ √ √ √ √ √ ing Yamaha diagnostic tool. check • Check the error codes. Air filter element • Replace. Every 16000 km (10000 mi) √ √ √ √...
Page 67 Periodic maintenance and adjustment ODOMETER READING (whichever comes first) ANNUAL 1000 km 4000 km 8000 km 12000 km 16000 km ITEM CHECK OR MAINTENANCE JOB CHECK 2 months 6 months 10 months 14 months 18 months • Check tread depth and for dam- age.
Page 68 • Check coolant level and vehicle √ √ √ √ √ for coolant leakage. 23 * Cooling system • Change with Yamaha genuine Every 3 years coolant. √ √ • Check vehicle for oil leakage. Every 8000 km (5000 mi) Final transmission √...
Page 69 Periodic maintenance and adjustment EAU66860  Air filter • This model’s air filter is equipped with a disposable oil-coated paper element, which must not be cleaned with com- pressed air to avoid damaging it. • The air filter element needs to be replaced more frequently when riding in unusually wet or dusty areas. ...
Page 70: Removing And Installing Panels
Periodic maintenance and adjustment EAU18773 Removing and installing pan- The panels shown need to be removed to perform some of the maintenance jobs described in this chapter. Refer to this section each time a panel needs to be removed and installed. 1.
Page 71: Checking The Spark Plug
2. Remove the spark plug cap. and bolts. 1. Spark plug cap 1. Panel B 3. Remove the spark plug as shown, 2. Screw with a spark plug wrench available 3. Bolt at a Yamaha dealer.
Page 72 3. Install the spark plug cap. ating improperly. Do not attempt to 1. Spark plug gap diagnose such problems yourself. In- Spark plug gap: stead, have a Yamaha dealer check 0.8–0.9 mm (0.031–0.035 in) the vehicle.
Page 73: Engine Oil And Oil Strainer
Periodic maintenance and adjustment EAU62845 Engine oil and oil strainer The engine oil should be between the The engine oil level should be checked tip of the dipstick and maximum level before each ride. In addition, the oil mark. must be changed and the oil strainer cleaned at the intervals specified in the periodic maintenance and lubrication chart.
Page 74 Periodic maintenance and adjustment To change the engine oil and clean 5. Install the engine oil strainer, com- the oil strainer pression spring, engine oil drain 1. Start the engine, warm it up for bolt with new O-ring, and then several minutes, and then turn it tighten the drain bolt to the speci- off.
Page 75: Final Transmission Oil
“CD” or oils of a ride. If any leakage is found, have a higher quality than specified. In Yamaha dealer check and repair your addition, do not use oils labeled motorcycle. In addition, the final trans- “ENERGY CONSERVING II” or mission oil must be changed as follows higher.
Page 76: Coolant
Periodic maintenance and adjustment 6. Install the final transmission oil EAU20071 Coolant drain bolt and its new gasket, and The coolant level should be checked then tighten the bolt to the speci- before each ride. In addition, the cool- fied torque. ant must be changed at the intervals specified in the periodic maintenance Tightening torque:...
Page 77 The coolant must be changed at the in- added to the coolant, have a tervals specified in the periodic main- Yamaha dealer check the anti- tenance and lubrication chart. Have a freeze content of the coolant as Yamaha dealer change the coolant.
Page 78: Air Filter And V-Belt Case Air Filter Elements
Periodic maintenance and adjustment EAU67174 1. Check the hose on the rear side of 3. Pull the air filter element out. Air filter and V-belt case air fil- the air filter case for accumulated ter elements dirt or water. The air filter element should be re- 2.
Page 79 Periodic maintenance and adjustment  The air filter element needs 3. Pull the V-belt case air filter ele- more frequent replacement if ment out, and then clean it with If dirt or water was found in the check you are riding in unusually wet solvent.
Page 80: Checking The Throttle Grip Free Play
Measure the throttle grip free play as and/or engine noise. To prevent this shown. from occurring, the valve clearance must be adjusted by a Yamaha dealer at the intervals specified in the periodic maintenance and lubrication chart. 4. Apply oil of the recommended...
Page 81: Tires
* Total weight of rider, passenger, car- proper tire pressure may cause se- the sidewall is cracked, contact a go and accessories vere injury or death from loss of Yamaha dealer immediately and have the tire replaced. control. EWA10512  The tire air pressure must be...
Page 82: Cast Wheels
When a tire tread EWA10462 note the following points regarding the WARNING begins to show crosswise lines, specified wheels. have a Yamaha dealer replace The front and rear tires should be of  The wheel rims should the tire immediately.
Page 83: Checking The Front Brake Lever Free Play
1. No brake lever free play There should be no free play at the 1. Rear brake lever free play brake lever end. If there is free play, have a Yamaha dealer inspect the Rear brake lever free play: brake system. 10.0–20.0 mm (0.39–0.79 in)
Page 84: Checking The Front Brake Pads And Rear Brake Shoes
To check the brake pad wear, check point that the wear indicator reaches the wear indicator grooves. If a brake the wear limit line, have a Yamaha pad has worn to the point that the wear dealer replace the brake shoes as a set.
Page 85: Checking The Brake Fluid Level
Water will significantly lower the necessary. boiling point of the fluid and level goes down suddenly, have a may result in vapor lock. Yamaha dealer check the vehicle be-  To prevent contamination, fore further operation. clean the reservoir and filler cap before removing.
Page 86: Changing The Brake Fluid
Have a Yamaha dealer change the The V-belt must be checked and re- cables brake fluid at the intervals specified in placed by a Yamaha dealer at the inter- The operation of all control cables and the periodic maintenance and lubrica- vals...
Page 87: Checking And Lubricating The Throttle Grip And Cable
In brake levers must be lubricated at the addition, the cable should be lubricat- intervals specified in the periodic main- ed by a Yamaha dealer at the intervals tenance and lubrication chart. specified in the periodic maintenance Front brake lever chart.
Page 88: Checking And Lubricating The Centerstand And Sidestand
If the centerstand or sidestand does bounds smoothly. not move up and down smoothly, have a Yamaha dealer check or re- pair it. Otherwise, the centerstand or sidestand could contact the ground and distract the operator, resulting in a possible loss of control.
Page 89: Checking The Steering
Yamaha dealer check or re- tion chart. If there is play in the wheel ward and backward. If any free pair it.
Page 90: Battery
3. Fully charge the battery before in-  Electrolyte is poisonous and stallation. NOTICE: When install- Have a Yamaha dealer charge the bat- dangerous since it contains sul- tery as soon as possible if it seems to ing the battery, be sure to turn furic acid, which causes severe have discharged.
Page 91: Replacing The Fuses
Periodic maintenance and adjustment nect the positive lead before EAU66795 (GDR155/GDR155-R) Replacing the fuses connecting the negative lead. The fuse boxes, which contain the fus- [ECA16842] es for the individual circuits, are locat- 4. After installation, make sure that ed under the seat. (See page 6-15.) the battery leads are properly con- nected to the battery terminals.
Page 92 Periodic maintenance and adjustment (GDR155-A) Specified fuses: Main fuse: 30.0 A Terminal fuse 1: 2.0 A Headlight fuse: 7.5 A Signaling system fuse: 7.5 A Ignition fuse: 7.5 A 1. Battery cover Smart key system fuse: 1. Main fuse 2. Screw 2.0 A (GDR155-A) 2.
Page 93: Headlight
Replacing an auxiliary light If the fuse immediately blows again, This model is equipped with an LED- bulb have a Yamaha dealer check the elec- type headlight. This model is equipped with two auxil- trical system. If a headlight does not come on, have iary lights.
Page 94: Tail/Brake Light
1. Place the vehicle on the center- If the tail/brake light does not come on, stand. have a Yamaha dealer check it. 2. Remove the turn signal light bulb socket (together with the bulb) by turning it counterclockwise.
Page 95: Replacing A Rear Turn Signal Light Bulb
Periodic maintenance and adjustment EAUU1121 3. Insert a new bulb into the socket Replacing a rear turn signal by pushing it in. light bulb ECAU0081 NOTICE 1. Remove the rear turn signal lens by removing the screw. If a turn signal light bulb of different wattage than recommended is used, the turn signal light flashing may be affected.
Page 96: Replacing The License Plate Light Bulb
3. Remove the burnt-out bulb by self. However, should your vehicle re- pulling it out. quire any repair, take it to a Yamaha 4. Insert a new bulb into the socket. dealer, whose skilled technicians have 5. Install the socket (together with 1.
Page 97 EAU76843 checked the preceding conditions, Stop and Start System trouble-  Is the smart key turned on? (See have a Yamaha dealer check the vehi- shooting (GDR155-A) page 4-5.) cle as soon as possible. If a problem occurs, check the follow- ...
Page 98 If the engine still does not restart after dealer check the vehicle as soon as you checked the preceding conditions, possible. have a Yamaha dealer check the vehi- cle as soon as possible. After the engine was stopped by the Stop and Start System, the engine does not restart even if the throttle grip is turned.
Page 99: Troubleshooting Charts
Remove the spark plug and check the electrodes. The engine does not start. Have a Yamaha dealer check the vehicle. Check the compression. 4. Compression The engine does not start. There is compression.
Page 100 Start the engine. If the engine overheats again, have a The coolant level Yamaha dealer check and repair the cooling system. is OK. If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended cool- ant as soon as possible.
Page 101: Emergency Mode (Gdr155-A)
Periodic maintenance and adjustment EAU76560 4. Inputting the identification number Emergency mode (GDR155-A) is done by counting the number of When the smart key is lost or dam- flashes of the smart key system in- aged, or its battery has discharged, the dicator light.
Page 102 Periodic maintenance and adjustment  When there are no knob opera- tions for 10 seconds during the identification number input pro- cess.  When the smart key system indi- cator light is allowed to flash nine Release the knob after the smart or more times.
Page 103: Scooter Care And Storage
Be ECA10784 NOTICE high-quality components are used. A sure to consult a Yamaha dealer for rusty exhaust pipe may go unnoticed advice on what products to use be-  Avoid using strong acidic wheel on a car, however, it detracts from the fore cleaning the vehicle.
Page 104 Scooter care and storage off any detergent residue using shield. Test the product on a 2. Apply a corrosion protection spray plenty of water, as it is harmful small hidden part of the wind- on all metal, including chrome- to plastic parts. shield to make sure that it does and nickel-plated, surfaces to pre- ...
Page 105: Storage
Scooter care and storage EWA10943 EAU36564 Storage WARNING  Consult a Yamaha dealer for ad- Contaminants on the brakes or tires vice on what products to use. Short-term can cause loss of control.  Washing, rainy weather or humid Always store your scooter in a cool, dry ...
Page 106 Scooter care and storage 2. Fill up the fuel tank and add fuel 4. Lubricate all control cables and stabilizer (if available) to prevent the pivoting points of all levers and the fuel tank from rusting and the pedals as well as of the side- fuel from deteriorating.
Page 107: Specifications
Specifications Dimensions: Compression ratio: Fuel: 10.5 : 1 Overall length: Recommended fuel: Starting system: 1990 mm (78.3 in) Regular unleaded gasoline (Gasohol [E10] Electric starter Overall width: acceptable) Lubrication system: 700 mm (27.6 in) Fuel tank capacity: Wet sump Overall height: 4.6 L (1.2 US gal, 1.0 Imp.gal) Engine oil: 1125 mm (44.3 in)
Page 108 12 V, 6.0 Ah (10 HR) Type: Size: Bulb wattage: Hydraulic single disc brake 140/70-14M/C 62P Specified brake fluid: Headlight: Manufacturer/model: YAMAHA GENUINE BRAKE FLUID (DOT 4) IRC/SCT-005R Rear brake: Brake/tail light: Loading: Type: Maximum load: Front turn signal light: Mechanical leading trailing drum brake 153 kg (337 lb) (GDR155-A, GDR155-R) 10.0 W...
Page 109 Specifications Coolant temperature warning light: ABS warning light: LED (GDR155-A) Smart key system indicator light: LED (GDR155-A) Stop and Start System indicator light: LED (GDR155-A) Fuse(s): Main fuse: 30.0 A Terminal fuse 1: 2.0 A Headlight fuse: 7.5 A Signaling system fuse: 7.5 A Ignition fuse: 7.5 A...
Page 110: Consumer Information
Record the vehicle identification num- ber and the engine serial number in the spaces provided below for assistance when ordering spare parts from a Yamaha dealer or for reference in case the vehicle is stolen. VEHICLE IDENTIFICATION NUMBER: 1. Vehicle identification number 1.
Page 111: Vehicle Data Recording
 Vehicle status and engine perfor- mance data  Fuel-injection and emission-relat- ed data Yamaha will not disclose this data to a third party except:  With the consent of the vehicle owner  Where obligated by law ...
Page 112: Index
Index Engine trouble warning light....6-4 Maintenance, emission control system ..........9-2 ABS (for ABS models)......6-11 Matte color, caution ......10-1 ABS warning light (for ABS models) ..6-4 Final transmission oil ......9-12 Multi-function meter unit......6-5 Acceleration and deceleration ....8-3 Front brake lever free play, checking ... 9-20 Activating the Stop and Start System ..5-1 Front fork, checking ......
Page 113 Index Stop and Start System indicator light ..6-5 Stop and Start System operation... 5-1 Stop and Start System switch....6-10 Stop and Start System troubleshooting ........9-34 Storage ..........10-3 Storage compartments......6-16 Tail/brake light ........9-31 Throttle grip and cable, checking and lubricating ....
Page 114 PRINTED IN THAILAND 2017.07 (E)

This manual is also suitable for:

Aerox gdr155-r Aerox gdr155-a

Yamaha Aerox GDR155 Owner's Manual

Location of Important Labels

Safety Information

Description

Smart Key System (GDR155-A)

Stop and Start System (GDR155-A)

Instrument and Control Functions

For Your Safety - Pre-Operation Checks

Operation and Important Riding Points

Periodic Maintenance and Adjustment

Scooter Care and Storage

Specifications

Consumer Information

Index

Quick Links

Troubleshooting

Need help?

Questions and answers

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Summary of Contents for Yamaha Aerox GDR155

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Table of Contents