2003 YAMAHA TTR90 Owners Manual

Page 313 of 340

YAMAHA TTR90 2003  Owners Manual –+ELEC
STARTER-RELAIS-KONTROLLE
1. Demontieren:
Starterrelais
2. Kontrollieren:
Starterrelais-Durchgang
12-V-Batterie verwenden.
Durchgang, wenn nicht an Batterie ange-
schlossen → Erneuern.
Kei

Page 314 of 340

YAMAHA TTR90 2003  Owners Manual 6 - 10
–+ELEC
START SWITCH INSPECTION
1. Inspect:
Start switch continuity
No continuous while being pushed → Replace.
Continuous while being freed → Replace. Tester (+) lead → Black lead 1 
T

Page 315 of 340

YAMAHA TTR90 2003  Owners Manual –+ELEC
STARTSCHALTER-KONTROLLE
1. Kontrollieren:
Startschalter-Durchgang
Kein Durchgang wenn eingedrückt → Erneu-
ern.
Durchgang wenn frei → Erneuern. Meßkabel (+) → Kabel schwarz 1 
Meßka

Page 316 of 340

YAMAHA TTR90 2003  Owners Manual 6 - 11
–+ELEC
STARTER MOTOR
Extent of removal:1 Starter motor disassembly
Extent of removal Order Part name Q’ty Remarks
STARTER MOTOR REMOVAL 
Preparation for removal Drain the engine oil Refer t

Page 317 of 340

YAMAHA TTR90 2003  Owners Manual –+ELEC
 
STARTERMOTOR 
Demontage-Arbeiten:  
1  
 Startermotor zerlegen
Demontage-ArbeitenReihen-
folgeBauteil Anz. Bemerkungen  
STARTERMOTOR-DEMON-
TAGE  
Vorbereitung für den 
AusbauDas Motoröl

Page 318 of 340

YAMAHA TTR90 2003  Owners Manual 6 - 12
–+ELEC
INSPECTION AND REPAIR
1. Inspect:
Commutator
Dirt → Clean it with #600 grit sandpaper.
2. Measure:
Commutator diameter a 
Out of specification → Replace the
starter motor.
3. Mea

Page 319 of 340

YAMAHA TTR90 2003  Owners Manual –+ELEC
 
KONTROLLE UND REPARATUR  
1. Kontrollieren: 
 
Kommutator
Schmutz   
→  
 Mit Sandpapier Feinheit
600 reinigen.
2. Messen: 
 
Kommutatordurchmesser   
a  
 
Unvorschriftsmäßig   
→

Page 320 of 340

YAMAHA TTR90 2003  Owners Manual 6 - 13
–+ELEC
5. Measure:
Brush length a 
Out of specification → Replace.
Brush length wear limit:
3.5 mm (0.14 in)
6. Measure:
Brush spring force
Fatigue/out of specification → Replace
as a s