kick starter YAMAHA YFM90R 2022 Owners Manual

EBU17421
TABLE OF CONTENTS
VEHICLE IDENTIFICATION ............................ 1-1Identification numbers ................................ 1-1
LOCATION OF THE WARNING AND
SPECIFICATION LABELS .............................. 2-1
SAFETY INFORMATION ................................ 3-1
DESCRIPTION................................................ 4-1 Left view ...................................................... 4-1
Right view.................................................... 4-1
Controls and instruments............................ 4-2
INSTRUMENT AND CONTROL
FUNCTIONS ................................................... 5-1 Main switch ................................................. 5-1
Indicator lights............................................. 5-1
Handlebar switches .................................... 5-2
Throttle lever ............................................... 5-2
Speed limiter ............................................... 5-3
Front brake lever ......................................... 5-5
Rear brake lever .......................................... 5-5
Parking brake .............................................. 5-5
Drive select lever ......................................... 5-6 Kickstarter .................................................. 5-7
Fuel tank cap .............................................. 5-8
Fuel ............................................................. 5-9
Fuel cock .................................................. 5-10
Starter (choke) ......................................... 5-12
Seat .......................................................... 5-13
Front shock absorbers ............................. 5-13
Rear shock absorber ................................ 5-15
PRE-OPERATION CHECKS .......................... 6-1 Fuel ............................................................. 6-3
Engine oil .................................................... 6-3
Transmission .............................................. 6-3
Front and rear brakes ................................. 6-3
Throttle lever ............................................... 6-3
Drive chain .................................................. 6-3
Tires ............................................................ 6-3
Chassis fasteners ....................................... 6-6
Instruments and switches........................... 6-6
OPERATION .................................................. 7-1 Starting a cold engine................................. 7-1
Starting a warm engine............................... 7-3UBD366E0.book Page 1 Thursday, June 10, 2021 2:39 PM

4-1
4
EBU17681
DESCRIPTION
EBU17691Left view
EBU17701Right view
1. Fuel tank cap
2. Fuel cock
3. Air filter
4. Fuse
5. Battery
6. Rear shock absorber
7. Kickstarter lever cap
1 2 3 4,576
1. Spark arrester
2. Reflector
3. Tool kit
4. Front shock absorber
5. Spark plug
6. Engine oil filler cap
7. Transmission oil filler cap123 4
76 5
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5-7
5
EBU33893KickstarterUse the kickstarter to start the engine when the
battery voltage is low. 1. Remove the seat (page 5-13), and then re- move the kickstarter lever.
2. Remove the kickstarter lever cap. 3. Install the kickstarter lever.
4. Move the kickstarter lever down lightly with
your foot until the gears engage, and then
push it down smoothly but forcefully.1. Kickstarter lever
1
1. Kickstarter lever cap
1
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5-8
5
5. When the engine has started, remove the kickstarter lever and store it under the seat.
6. Install the kickstarter lever cap and the seat.
NOTICEECB02300Do not use the kickstarter if the battery is not
installed or if the battery leads are not connect-
ed.
EBU37980Fuel tank capRemove the fuel tank cap by turning it counter-
clockwise.
WARNING
EWB02522Gasoline and gasoline vapors are extremely
flammable. To avoid fires and explosions and
to reduce the risk of injury when refueling, fol-
low these instructions. 1. Before refueling, turn off the engine and be sure that no one is sitting on the vehicle. Nev-
er refuel while smoking, or while in the vicinity
1. Fold out.
2. Push down.
1
2
1. Fuel tank cap
1
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7-2
7
Ambient temp./starter (choke) position
6. Release the throttle lever and start the engine by pushing the start switch.
TIPIf the engine fails to start, release the start
switch, then push it again. Pause a few seconds
before the next attempt. Each cranking should
be as short as possible to preserve battery en-
ergy. Do not crank the engine more than 10 sec-
onds on each attempt. 
If the engine fails to start using the start switch,
try using the kickstarter. (See page 5-7.)
7. If the engine is started with the starter (choke)
lever in position (1), move the lever to position
(2) to warm up the engine. If the engine is
started with the starter (choke) lever in posi-
tion (2), keep the lever in this position to warm
up the engine.
8. Continue warming up the engine until it idles smoothly, then return the starter (choke) lever
to position (3) before riding.TIPThe engine is warm when it responds quickly to
the throttle with the starter (choke) turned off. 9. Release the parking brake.NOTICEECB00164For maximum engine life, never accelerate
hard when the engine is cold!
1. Fully open
2. Half open
3. Closed
4. Starter (choke) lever
4
3
2
1
(1) (3)
(2)
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11
EBU25964
SPECIFICATIONS
Dimensions:Overall length:1485 mm (58.5 in)
Overall width: 1020 mm (40.2 in)
Overall height:
955 mm (37.6 in)
Wheelbase: 1030 mm (40.6 in)
Ground clearance: 210 mm (8.3 in)Weight:Curb weight:126.5 kg (279 lb)Loading:Maximum load:
82.0 kg (181 lb)
(Total weight of rider, cargo, accessories, and tongue)Noise and vibration level:Noise level (77/311/EEC):73.0 dB(A) at 3500 r/min
Uncertainty of measurement: 0.4 dB(A)
Vibration on seat (EN1032, ISO5008):
1.5 m/s²
Uncertainty of measurement: 0.3 m/s² Vibration on handle (EN1032, ISO5008):
5.2 m/s²
Uncertainty of measurement: 1.3 m/s²
Engine:Combustion cycle:
4-stroke
Cooling system: Air cooled
Valve train: SOHC
Number of cylinders:
Single cylinder
Displacement: 90 cm³
Bore × stroke:
47.0 × 51.8 mm (1.85 × 2.04 in)
Starting system:
Electric starter and kickstarterEngine oil:Recommended brand:
SAE viscosity grades:5W-30, 10W-30, 10W-40, 15W-40, 20W-40, 20W-50
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12-1
12
INDEX
AAccessories and loading ................................................ 7-6
Air filter element, cleaning ........................................... 9-15BBattery ......................................................................... 9-31
Brake lever free play, adjusting the front ..................... 9-23
Brake lever free play (rear), adjusting .......................... 9-24
Brake lever, front ........................................................... 5-5
Brake lever, rear ............................................................. 5-5
Brake levers, checking and lubricating ........................ 9-28
Brakes .......................................................................... 9-21
Brakes, front and rear .................................................... 6-3CCables, checking and lubricating ................................ 9-28
Carburetor, adjusting ................................................... 9-19
Chassis fasteners .......................................................... 6-6
Cleaning ....................................................................... 10-1DDrive chain ..................................................................... 6-3
Drive chain, lubricating ................................................ 9-27
Drive chain slack .......................................................... 9-25
Drive select lever ........................................................... 5-6
Drive select lever and driving in reverse ........................ 7-3EEngine break-in .............................................................. 7-4
Engine, cold start ........................................................... 7-1
Engine idling speed ..................................................... 9-19
Engine oil ..............................................................6-3, 9-10
Engine, starting a warm ................................................. 7-3Engine stop switch ........................................................ 5-2
FFront and rear brake shoes, checking ......................... 9-21
Front arm pivots, lubricating ........................................ 9-29
Front knuckle pivots, lubricating ................................. 9-30
Fuel ......................................................................... 5-9, 6-3
Fuel cock ..................................................................... 5-10
Fuel tank cap ................................................................. 5-8
Fuse, replacing ............................................................ 9-34HHandlebar switches ....................................................... 5-2IIdentification numbers ................................................... 1-1
Indicator lights ............................................................... 5-1
Instruments and switches .............................................. 6-6KKickstarter ...................................................................... 5-7LLabel locations ............................................................... 2-1MMain switch .................................................................... 5-1
Maintenance chart, emission control system ................ 9-3
Maintenance chart, general maintenance and
lubrication .................................................................... 9-5
Model label .................................................................... 1-1NNeutral indicator light .................................................... 5-1OOwner’s Manual and tool kit .......................................... 9-2
UBD366E0.book Page 1 Thursday, June 10, 2021 2:39 PM