Yamaha SR400 2014 User Manual

PERIODIC MAINTENANCE
3-24
d. Start the engine after solving the problem(s)
and make sure that oil seeps out.
e. Tighten the oil check bolt to specification.
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EAS2RD1037
CHECKING THE FRONT BRAKE LIGHT
SWITCH
Refer to “ELECTRICAL COMPONENTS” on
page 7-51.
EAS21330
ADJUSTING THE REAR BRAKE LIGHT
SWITCH
TIP
The rear brake light switch is operated by move-
ment of the brake pedal. The rear brake light
switch is properly adjusted when the brake light
comes on just before the braking effect starts.
1. Check:
• Rear brake light operation timing
Incorrect  Adjust.
2. Adjust:
• Rear brake light operation timing
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a. Hold the main body “1” of the rear brake light
switch so that it does not rotate and turn the
adjusting nut “2” in direction “a” or “b” until the
rear brake light comes on at proper timing.
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EAS21690
CHECKING AND LUBRICATING THE
CABLES
The following procedure applies to all of the in-
ner and outer cables.
WARNING
EWA13270
Damaged outer cable may cause the cable to
corrode and interfere with its movement. Re-
place damaged outer cable and inner cables
as soon as possible.
1. Check:
• Outer cable
Damage  Replace.
2. Check:
• Cable operation
Rough movement  Lubricate.
TIP
Hold the cable end upright and pour a few drops
of lubricant into the cable sheath or use a suit-
able lubricating device.
EAS30890
CHECKING THE THROTTLE GRIP
1. Check:
• Throttle cable
Damage/deterioration  Replace.
• Throttle cable installation
Incorrect  Reinstall the throttle cables.
Refer to “HANDLEBAR” on page 4-33.
2. Check:
• Throttle grip movement
Rough movement  Lubricate or replace the
defective part(s).
TIP
With the engine stopped, turn the throttle grip
slowly and release it. Make sure that the throttle
grip turns smoothly and returns properly when
released.
Repeat this check with the handlebar turned all
the way to the left and right.
3. Check:
• Throttle grip free play “a”
Out of specification  Adjust.
Oil check bolt
18 Nm (1.8 m·kgf, 13 ft·lbf)
Direction “a”
Brake light comes on sooner.
Direction “b”
Brake light comes on later.
T
R
.
.
1
2
a
b
Recommended lubricant
Suitable cable lubricant
Recommended lubricant
Suitable cable lubricant

Yamaha SR400 2014 Specifications

General

Engine Type	Air-cooled, 4-stroke, SOHC, 2-valve
Displacement	399cc
Bore x Stroke	87.0 x 62.7 mm
Compression Ratio	8.5:1
Fuel System	Fuel Injection
Transmission	5-speed
Final Drive	Chain
Front Suspension	Telescopic fork
Rear Suspension	Swingarm
Front Brake	Single disc
Rear Brake	Drum
Front Tire	90/100-18M/C 54S
Rear Tire	110/90-18M/C 61S
Ignition System	TCI
Fuel Tank Capacity	12 liters
Curb Weight	174 kg
Wheelbase	1, 410 mm
Length	2, 085 mm
Width	750 mm