2001 YAMAHA YZ250LC Manuale duso (in Italian)

Page 545 of 578

YAMAHA YZ250LC 2001  Manuale duso (in Italian) 7-11
REGISTRAZIONETUN
Sintomo
Valvola a farfalla a 0 ~ 1/4 
Respirazione difficoltosa
Velocità bassa
Valvola a farfalla a 0 ~ 1/4 
Accelerazione scarsa
Fumo bianco
Instabile a bassi regimi
Rumore di

Page 546 of 578

YAMAHA YZ250LC 2001  Manuale duso (in Italian) 7-12
SETTINGTUN
EC71M001
Change of the heat range of spark plugs
Judging from the discoloration of spark plugs, if
they are found improper, it can be corrected by
the following two methods; changing c

Page 547 of 578

YAMAHA YZ250LC 2001  Manuale duso (in Italian) 7-12
REGLAGE
EINSTELLUNG
REGISTRAZIONETUN
Änderung des Wärmebereichs der
Zündkerzen
Falls anhand der Verfärbung der
Zündkerzen eine falsche Einstellung
beurteilt wird, dann kann diese mit
Hilfe d

Page 548 of 578

YAMAHA YZ250LC 2001  Manuale duso (in Italian) 7-13
SETTINGTUN
EC720000
CHASSISEC71P002
Selection of the secondary reduction ratio 
(Sprocket)
Secondary Number of driven sprocket teethreduction =
ratioNumber of drive sprocket teeth
<Requirement fo

Page 549 of 578

YAMAHA YZ250LC 2001  Manuale duso (in Italian) 7-13
REGLAGE
EINSTELLUNG
REGISTRAZIONETUN
FAHRGESTELL
Auswahl des Sekundär-
Untersetzungsverhältnisses 
(Kettenrad)
<Anforderung für Wahl des Unterset-
zungs- Verhältnisses für den zweiten
Gang>

Page 550 of 578

YAMAHA YZ250LC 2001  Manuale duso (in Italian) 7-14
SETTINGTUN
EC72N000
Drive and driven sprockets setting parts
EC721002
T ire pressure
Tire pressure should be adjust to suit the road
surface condition of the circuit.
9Under a rainy, muddy, sandy

Page 551 of 578

YAMAHA YZ250LC 2001  Manuale duso (in Italian) 7-14
REGLAGE
EINSTELLUNG
REGISTRAZIONETUN
Antriebs- und Abtriebskettenrad-
EinstellteilePièces de réglage des pignons méné et
menant
Pression des pneus
Régler la pression des pneus en fonc-
tion

Page 552 of 578

YAMAHA YZ250LC 2001  Manuale duso (in Italian) 7-15
SETTINGTUN
A
EC722011
Front fork setting
The front fork setting should be made depending
on the rider’s feeling of an actual run and the cir-
cuit conditions.
The front fork setting includes th