Yamaha R3 2021 User Manual

Instrument and control functions
4-1
4
EAU10462
Main switch/steering lock
The main switch/steering lock controls
the ignition and lighting systems, and is
used to lock the steering. The various
positions are described below.
EAU85040
ON
All electrical circuits are supplied with
power and the vehicle lights are turned
on. The engine can be started. The key
cannot be removed.
TIP
z To prevent battery discharge, do
not leave the key in the on position
without the engine running.
z The headlight comes on automat-
ically when the engine is started.
EAU10662
OFF
All electrical systems are off. The key
can be removed.
WARNING
EWA10062
Never turn the key to “OFF” or
“LOCK” while the vehicle is moving.
Otherwise the electrical systems will
be switched off, which may result in
loss of control or an accident.
EAU1068B
LOCK
The steering is locked and all electrical
systems are off. The key can be re-
moved.
To lock the steering
1. Turn the handlebars all the way to
the left.
2. With the key in the “OFF” position,
push the key in and turn it to
“LOCK”.
3. Remove the key.
TIP
If the steering will not lock, try turning
the handlebars back to the right slight-
ly.
ON
OFF
LOCK
1. Push.
2. Turn.
12
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Yamaha R3 2021 Specifications

General

Bore x Stroke	68.0mm x 44.1mm
Compression Ratio	11.2:1
Fuel Delivery	Fuel injection
Ignition	TCI: Transistor Controlled Ignition
Transmission	6-speed; multiplate wet clutch
Final Drive	Chain
Front Tire	110/70-17
Rear Tire	140/70-17
Wheelbase	54.3 in
Seat Height	30.7 in
Fuel Capacity	3.7 gal
Wet Weight	375 lb
Length	82.3 in
Width	28.7 in
Engine Type	liquid-cooled, 4-stroke, DOHC inline twin-cylinder
Rear Suspension	KYB single shock; 4.9-in travel
Front Brakes	298mm hydraulic disc
Rear Brakes	Hydraulic disc, 220mm
Horsepower	42 hp (31 kW) @ 10, 750 rpm
Torque	21.8 lb-ft
Height	44.9 in