2006 YAMAHA TTR90 Owners Manual

Page 345 of 390

YAMAHA TTR90 2006  Owners Manual –+ELEC
MEMO

Page 346 of 390

YAMAHA TTR90 2006  Owners Manual 6 - 4
–+ELECIGNITION SYSTEM
EC622001
SPARK GAP TEST
1. Disconnect the spark plug cap from spark
plug.
2. Connect the dynamic spark tester 1 (igni-
tion checker 2) as shown.
Spark plug cap 3 
Spark

Page 347 of 390

YAMAHA TTR90 2006  Owners Manual –+ELEC
ZÜNDFUNKENSTRECKE KONTROLLIEREN
1. Den Zündkerzenstecker von der Zünd-
kerze abziehen.
2. Den Zündfunkenstrecken-Tester 1 (Zün-
dungstester 2) wie in der Abbildung
gezeigt anschließen.

Page 348 of 390

YAMAHA TTR90 2006  Owners Manual 6 - 5
–+ELECIGNITION SYSTEM
“ENGINE STOP” SWITCH INSPECTION
1. Inspect:
“ENGINE STOP” switch continuity
Not continuous in the “” position → Replace.
Continuous in the “” position

Page 349 of 390

YAMAHA TTR90 2006  Owners Manual –+ELEC
MOTORSTOPPSCHALTER “ENGINE STOP” 
KONTROLLIEREN
1. Kontrollieren:
Durchgang des Motorstoppschalters
“ENGINE STOP”
Kein Durchgang in Schalterstellung “” → 
Erneuern.
Durchgang i

Page 350 of 390

YAMAHA TTR90 2006  Owners Manual 6 - 6
–+ELECIGNITION SYSTEM
CDI MAGNETO INSPECTION
1. Inspect:
Pickup coil resistance
Out of specification → Replace.
Tester (+) lead 
→ Red lead 
1 
Tester (–) lead 
→ White lead 
2 
Picku

Page 351 of 390

YAMAHA TTR90 2006  Owners Manual –+ELEC
LICHTMASCHINE KONTROLLIEREN
1. Kontrollieren:
Impulsgeber-Widerstand
Nicht nach Vorgabe → Erneuern.
Masskabel (+) → Rot 1 
Masskabel (–) → Weiß 2 
Impulsgeber-
WiderstandMessgerät-

Page 352 of 390

YAMAHA TTR90 2006  Owners Manual 6 - 7
–+ELEC
ELECTRIC STARTING SYSTEM 
(TT-R90E)
STARTING CIRCUIT CUT-OFF SYSTEM 
OPERATION
If the main switch is set to “ON”, the starter
motor can only operate if the following condi-
tion is