ELECTRICAL COMPONENTS
8-69
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a. Remove the spark plug cap from the spark
plug.
b. Connect the ignition checker “1” as shown.
c. Push the engine stop switch.
d. Measure the ignition spark gap “a”.
e. Crank the engine by pushing the start switch
and gradually increase the spark gap until a
misfire occurs.
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EASB29B354
CHECKING THE SPARK PLUG CAP
1. Remove:
• Spark plug cap
(from the spark plug lead)
2. Check:
• Spark plug cap resistance
Out of specification
Replace.
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a. Connect the pocket tester (
1k) to the
spark plug cap.
b. Measure the spark plug cap resistance.
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EASB29B355
CHECKING THE IGNITION COIL
1. Disconnect:
• Ignition coil terminal
(from the sub wire harness)
• Spark plug cap
(from the ignition coil)
2. Check:
• Primary coil resistance
Out of specification
Replace.
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a. Connect the pocket tester (
1) to the igni-
tion coil.
b. Measure the primary coil resistance.
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Ignition checker
90890-06754
Oppama pet–4000 spark checker
YM-34487
2. Spark plug cap
Resistance
7.50–12.50 k
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
Primary coil resistance
2.16–2.64
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe
Ignition coil terminal 1 “1”
• Negative tester probe
Ignition coil terminal 2 “2”
Summary of Contents for YZ 2017 Series
Page 6: ...EASB916006 YAMAHA MOTOR CORPORATION U S A YZ MOTORCYCLE LIMITED WARRANTY...
Page 10: ......
Page 63: ...LUBRICATION POINTS AND LUBRICANT TYPES 2 22...
Page 66: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 25...
Page 68: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 27...
Page 70: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29...
Page 72: ...CABLE ROUTING DIAGRAM 2 31 EASB29B065 CABLE ROUTING DIAGRAM...
Page 74: ...CABLE ROUTING DIAGRAM 2 33...
Page 76: ...CABLE ROUTING DIAGRAM 2 35...
Page 78: ...CABLE ROUTING DIAGRAM 2 37...
Page 80: ...CABLE ROUTING DIAGRAM 2 39...
Page 82: ...CABLE ROUTING DIAGRAM 2 41...
Page 84: ...CABLE ROUTING DIAGRAM 2 43...
Page 86: ...CABLE ROUTING DIAGRAM 2 45...
Page 198: ...CHAIN DRIVE 4 70...
Page 262: ...OIL PUMP AND BALANCER GEAR 5 61 a 2 10 b 2 9 1 b 5 3 a 4 10 5 9 3 E c d 6 7 8 8 b 6...
Page 319: ...CHARGING SYSTEM 8 15...
Page 327: ...COOLING SYSTEM For JPN 8 23...
Page 359: ...FUEL PUMP SYSTEM 8 55...
Page 360: ...ELECTRICAL COMPONENTS 8 56 EASB29B345 ELECTRICAL COMPONENTS EASB29B346 9 10 11 1 3 2 4 5 6 7 8...
Page 362: ...ELECTRICAL COMPONENTS 8 58 11 10 9 2 3 1 6 7 8 4 5...
Page 364: ...ELECTRICAL COMPONENTS 8 60 EASB29B347 CHECKING THE SWITCHES 4 1 3 2 B B Sb B B B B B B B B...