Yamaha YZF-R125 Owners Manual: Main switch/steering lock
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.
ON
All electrical circuits are supplied with power, the meter lighting, taillight, license plate light and auxiliary lights come on, and the engine can be started. The key cannot be removed.
TIP
The headlight comes on automatically when the engine is started and stays on until the key is turned to "OFF", even if the engine stalls.
OFF
All electrical systems are off. The key can be removed.
WARNING
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.
LOCK
The steering is locked, and all electrical systems are off. The key can be removed.
To lock the steering
-
Push.
-
Turn.
- Turn the handlebars all the way to the left or right.
- Push the key in from the "OFF" position, and then turn it to "LOCK" while still pushing it.
- Remove the key.
To unlock the steering
-
Push.
-
Turn.
Push the key into the main switch, and then turn it to "OFF" while still pushing it.
Indicator and warning lights
Indicator and warning lights
Neutral indicator light""
Turn signal indicator light""
High beam indicator light""
Engine trouble warning light""
Coolant temperature warning light""
T ...
Other materials:
Checking the cylinder head
1. Eliminate:
Combustion chamber carbon deposits
(with a rounded scraper)
NOTE:
Do not use a sharp instrument to avoid damaging
or scratching:
Spark plug bore threads
Valve seats
2. Check:
Cylinder head
Damage/scratches Replace.
Cylinder head water jacket
Min ...
Outline of the fi system
The main function of a fuel supply system is to provide fuel to the
combustion chamber at the optimum
air-fuel ratio in accordance with the engine operating conditions and the
atmospheric temperature. In
the conventional carburetor system, the air-fuel ratio of the mixture that is
supplied t ...
Checking the turn signal relay
1. Check:
Turn signal relay input voltage
Out of specification →The wiring circuit
from
the main switch to the turn signal relay coupler
is faulty and must be repaired.
a. Connect the pocket tester (DC 20 V) to the
turn signal relay terminal as shown.
- Positive tester probe
b ...