2007 YAMAHA YBR250 ignition

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PERIODIC MAINTENANCE AND MINOR REPAIR
EAU25901
Troubleshooting chart
EWA10840
Keep away open flames and do not smoke while checking or working on the \
fuel system.
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.There is no fuel.
Check the compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the electric starter.2. Compression
There is compression.
There is no compression.
Check the ignition. Have a Yamaha dealer
check the vehicle.
Remove the spark plug
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Have a Yamaha dealer
check the vehicle.
The engine does not start.
Check the battery.
Operate the electric starter.4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check the battery lead connections,
and charge the battery if necessary.
DryWet
Open the throttle halfway and operate
the electric starter.
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8-2
SPECIFICATIONS
8
28/22 (1.273)
4th:
26/25 (1.040)
5th:
23/27 (0.852)
Chassis:Frame type:Double cradle
Caster angle: 26.50 º
Trail:
104.5 mm (4.11 in)Front tire:Type:Tubeless
Size:
100/80-17M/C (52S)
Manufacturer/model: PIRELLI/SPORT DEMONRear tire:Type:Tubeless
Size:
130/70-17M/C (62S)
Manufacturer/model:
PIRELLI/SPORT DEMONLoading:Maximum load:167 kg (368 b)
(Total weight of rider, passenger, cargo
and accessories)
Tire air pressure (measured on cold
tires):Loading condition:0-90 kg (0-198 lb)
Front:
225 kPa (33 psi) (2.25 kgf/cm
2)
Rear: 250 kPa (36 psi) (2.50 kgf/cm2)
Loading condition:
90-167 kg (198-368 lb)
Front:
225 kPa (33 psi) (2.25 kgf/cm2)
Rear: 250 kPa (36 psi) (2.50 kgf/cm2)
Front wheel:Wheel type:Cast wheel
Rim size:
17M/C x MT2.15Rear wheel:Wheel type:Cast wheel
Rim size:
17M/C x MT3.00Front brake:Type:Single disc brake
Operation: Right hand operation
Recommended fluid:
DOT 3 or 4
Rear brake:Type: Leading, trailing drum brake
Operation: Right foot operation
Recommended fluid:
DOT 3 or 4Front suspension:Type:Telescopic fork
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel: 120.0 mm (4.72 in)Rear suspension:Type:Swingarm (link suspension)
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
120.0 mm (4.72 in)Electrical system:Ignition system: Transistorized coil ignition (digital)
Charging system: AC magnetoBattery:Model: YTX77L-BS
Voltage, capacity:
12 V, 6.0 Ah
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8-3
SPECIFICATIONS
8
Headlight:Bulb type:Halogen bulbBulb voltage, wattage x quantityHeadlight: 12 V, 35 W/35.0 W x 1
Tail brake light: 12 V, 5.0 W/21.0 W x 1
Front turn signal light:
12 V, 10.0 W x 2
Rear turn signal light:
12 V, 10.0 W x 2
Position light: 12 V, 5.0 W
Meter lighting:
14 V, 2.0 W x 2
Neutral indicator light:
14 V, 1.4 W x 1
Turn signal indicator light: 14 V, 1.4 W x 2
High beam indicator light:
14 V, 1.4 W x 1
Engine trouble warning light:
LEDFuses:Main fuse:20.0 A
Headlight fuse: 10.0 A
Signaling system fuse:
10.0 A
Ignition and fuel injection fuse:
10.0 A Backup fuse:
10.0 A
Spare fuses:
10.0 A and 20.0 A
cap 8.pmd 24/1/2007, 14:38
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