ELECTRICAL COMPONENTS
8-51
TIP
The digital circuit tester and the multimeter with
tachometer readings are shown in the following
table.
a. Disconnect the diode from the wire har-
ness.
b. Connect the digital circuit tester (
) to the
diode coupler as shown.
c. Check the diode for continuity.
d. Check the diode for no continuity.
EAM30294
CHECKING THE IGNITION SPARK GAP
1. Check:
•
Ignition spark gap
Out of specification
Perform the ignition
system troubleshooting, starting with step (5).
Refer to “TROUBLESHOOTING” on page
8-3.
TIP
If the ignition spark gap is within specification,
the ignition system circuit is operating normally.
a. Remove the spark plug cap from the spark
plug.
b. Connect the ignition checker “1” as
shown.
c. Crank the engine, and measure the igni-
tion spark gap “a”.
d. Crank the engine, and gradually increase
the spark gap until a misfire occurs.
EAM30295
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.
a. Connect the digital circuit tester (
) to the
spark plug cap.
No continuity
Tester positive lead
Blue/Green “1”
Tester negative lead
Blue “2”
Continuity
Tester positive lead
Blue “2”
Tester negative lead
Blue/Green “1”
No continuity
Tester positive lead
Brown/White, Brown “3”
Tester negative lead
Blue/Green, Blue/White “4”
Continuity
Tester positive lead
Blue/Green, Blue/White “4”
Tester negative lead
Brown/White, Brown “3”
No continuity
Tester positive prove
Blue/Black “5”
Tester negative prove
Blue/Red “6”
Continuity
Tester positive prove
Blue/Red “6”
Tester negative prove
Blue/Black “5”
A. Diode 1
B. Diode 2
C. Diode 3
L/G
L
L/B
L/R
Br/W,Br
L/G,
L/W
1
2
3
4
5
6
Minimum ignition spark gap
6.0 mm (0.24 in)
Ignition checker
90890-06754
Oppama pet–4000 spark checker
YM-34487
2. Spark plug cap
Resistance
7.50–12.50 k
Содержание YZ 2020 Series
Страница 6: ...EAM20162 YAMAHA MOTOR CORPORATION U S A YZ MOTORCYCLE LIMITED WARRANTY...
Страница 10: ......
Страница 50: ...ENGINE SPECIFICATIONS 2 5 Throttle grip free play 3 0 6 0 mm 0 12 0 24 in...
Страница 62: ...CABLE ROUTING DIAGRAM 2 17 EAM20152 CABLE ROUTING DIAGRAM Frame and engine left side view...
Страница 64: ...CABLE ROUTING DIAGRAM 2 19 Frame and engine right side view...
Страница 66: ...CABLE ROUTING DIAGRAM 2 21 Handlebar front view...
Страница 68: ...CABLE ROUTING DIAGRAM 2 23 Frame and engine top view...
Страница 70: ...CABLE ROUTING DIAGRAM 2 25 Frame and battery top view...
Страница 72: ...CABLE ROUTING DIAGRAM 2 27 Rear brake right side view...
Страница 74: ...CABLE ROUTING DIAGRAM 2 29...
Страница 112: ...ELECTRICAL SYSTEM 3 36...
Страница 154: ...HANDLEBAR 4 40 Throttle grip free play 3 0 6 0 mm 0 12 0 24 in...
Страница 167: ...FRONT FORK 4 53 1...
Страница 187: ...INSTALLING THE TRANSMISSION 5 75...
Страница 190: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 5 3 1 Oil filter element 2 Oil pump...
Страница 191: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 5 4 1 Intake camshaft 2 Exhaust camshaft...
Страница 192: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 5 5 1 Camshaft 2 Oil pressure check bolt 3 Oil pump 4 Oil filter element...
Страница 246: ...SHIFT SHAFT 5 59 TIP Align the punch mark a on the shift shaft with the punch mark b in the shift pedal 1 1 2 2 a b...
Страница 274: ...WATER PUMP 6 9...
Страница 284: ...THROTTLE BODY 7 9...
Страница 287: ......
Страница 288: ...IGNITION SYSTEM 8 1 EAM20142 IGNITION SYSTEM EAM30277 CIRCUIT DIAGRAM...
Страница 292: ...ELECTRIC STARTING SYSTEM 8 5 EAM20143 ELECTRIC STARTING SYSTEM EAM30279 CIRCUIT DIAGRAM...
Страница 296: ...CHARGING SYSTEM 8 9 EAM20144 CHARGING SYSTEM EAM30282 CIRCUIT DIAGRAM...
Страница 299: ...CHARGING SYSTEM 8 12...
Страница 300: ...SIGNALING SYSTEM 8 13 EAM20154 SIGNALING SYSTEM EAM30348 CIRCUIT DIAGRAM...
Страница 304: ...FUEL INJECTION SYSTEM 8 17 EAM20145 FUEL INJECTION SYSTEM EAM30284 CIRCUIT DIAGRAM...
Страница 328: ...FUEL PUMP SYSTEM 8 41 EAM20146 FUEL PUMP SYSTEM EAM30287 CIRCUIT DIAGRAM...
Страница 360: ...SELF DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE 9 15...
Страница 370: ...CHASSIS 10 9...
Страница 372: ......
Страница 375: ...YZ250FXL1 2020 WIRING DIAGRAM BAJ 28199 10_WD indd 1 2019 07 10 9 35 33...
Страница 376: ...YZ250FXL1 2020 WIRING DIAGRAM BAJ 28199 10_WD indd 2 2019 07 10 9 35 33...