2001 YAMAHA TTR90 ECO mode

INTRODUCTION
Congratulations on your purchase of a
Yamaha TT-R90(N). This model is the culmi-
nation of Yamaha’s vast experience in the pro-
duction of pacesetting racing machines. It
represents the highest grade of craftsmanship
and reliability that have made Yamaha a
leader.
This manual explains operation, inspection,
basic maintenance and tuning of your
machine. If you have any questions about this
manual or your machine, please contact your
Yamaha dealer.
NOTE:

As improvements are made on this model,
some data in this manual may become out-
dated. If you have any questions, please con-
sult your Yamaha dealer.
WARNING

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READ THIS MANUAL CAREFULLY FOR
INSTRUCTIONS ON HOW TO PROPERLY
OPERATE THIS MACHINE.
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ADULT INSTRUCTION AND SUPERVI-
SION ARE REQUIRED.
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WEIGHT OF THE RIDER SHOULD NOT
EXCEED 40 kg (88 lb).
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ALWAYS WEAR A HELMET AND SUIT-
ABLE PROTECTIVE CLOTHING WHEN
RIDING.
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DO NOT TOUCH ANY MOVING PARTS OR
HEATED AREAS.
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ALWAYS PERFORM PRE-OPERATION
CHECKS. REFER TO PAGE 15.
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THIS MACHINE IS DESIGNED TO CARRY
THE OPERATOR ONLY.
NO PASSENGERS.
l
THIS MACHINE IS DESIGNED OFF-ROAD
USE ONLY.
IT IS NOT SUITABLE FOR ON-ROAD USE.

SPEC

2 - 14
EC212300
ELECTRICAL
Item Standard Limit
CDI:
Magneto-model/manufacturer F5HN 00/YAMAHA ----
Source coil resistance (color) 688 ~ 1,032
W
at 20 ˚C (68 ˚F)
(Brown – Green)----
Pickup coil resistance (color) 248 ~ 372
W
at 20 ˚C (68 ˚F)
(Red – White)----
CDI unit-model/manufacturer 4GL-20/YAMAHA ----
Ignition coil:
Model/manufacturer 4KJ-00/YAMAHA ----
Minimum spark gap 6 mm (0.24 in) ----
Primary winding resistance 0.18 ~ 0.28
W
at 20 ˚C (68 ˚F) ----
Secondary winding resistance 6.3 ~ 9.5 k
W
at 20 ˚C (68 ˚F) ----
Spark plug cap:
Type Resin ----
Resistance 10 k
W
at 20 ˚C (68 ˚F) ----
MAINTENANCE SPECIFICATIONS

2 - 14
CARACTERISTIQUES D’ENTRETIEN
SPEC

PARTIE ELECTRIQUE
Désignation Standard Limite
CDI:
Magnéto, modèle/fabricant F5HN 00/YAMAHA ----
Résistance de la bobine d’alimentation (couleur) 688 à 1.032
W
à 20 ˚C (68 ˚F)
(brun – vert)----
Résistance de la bobine d’excitation (couleur) 248 à 372
W
à 20 ˚C (68 ˚F)
(rouge – blanc)----
Bloc CDI, modèle/fabricant 4GL-20/YAMAHA ----
Bobine d’allumage:
Modèle/fabricant 4KJ-00/YAMAHA ----
Longueur minimum d’étincelle 6 mm (0,24 in) ----
Résistance de l’enroulement primaire 0,18 à 0,28
W
à 20 ˚C (68 ˚F) ----
Résistance de l’enroulement secondaire 6,3 à 9,5 k
W
à 20 ˚C (68 ˚F) ----
Capuchon de bougie:
Type Résine ----
Résistance 10 k
W
à 20 ˚C (68 ˚F) ----