OWNER’S SERVICE MANUAL
MANUEL D’ATELIER DU
PROPRIETAIRE
FAHRER- UND
WARTUNGSHANDBUCH
MANUALE DI SERVIZIO DEL
PROPRIETARIO
(
E
)
1SM-28199-30
PRINTED IN JAPAN
2013.08—2.0 × 1
!
(E, F, G, H)
PRINTED ON RECYCLED PAPER
2014
YZ250F
(
E
)
2014
q Read this manual carefully before operating this vehicle.
q Il convient de lire attentivement ce manuel avant la première utilisation du véhicule.
q
Bitte lesen Sie diese Bedienungsanleitung sorgfältig durch, bevor Sie das Fahrzeug in Betrieb nehmen.
q Leggere attentamente questo manuale prima di utilizzare questo veicolo.
1SM-28199-30_cover.indd 1 2013/07/23 18:31:44
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Manuals and User Guides for Yamaha YZ250F 2014. We have 1 Yamaha YZ250F 2014 manual available for free PDF download: Owner’s Service Manual
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Contents
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Table of Contents
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Troubleshooting
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Bookmarks
Quick Links
2014
q Read this manual carefully before operating this vehicle.
q Il convient de lire attentivement ce manuel avant la première utilisation du véhicule.
q Bitte lesen Sie diese Bedienungsanleitung sorgfältig durch, bevor Sie das Fahrzeug in Betrieb nehmen.
q Leggere attentamente questo manuale prima di utilizzare questo veicolo.
OWNER’S SERVICE MANUAL
MANUEL D’ATELIER DU
PROPRIETAIRE
FAHRER- UND
WARTUNGSHANDBUCH
MANUALE DI SERVIZIO DEL
PROPRIETARIO
YZ250F ( E )
1SM-28199-30
Chapters
Troubleshooting
Summary of Contents for Yamaha YZ250F(E)
The main function of a fuel supply system is to provide fuel to the combustion chamber at the optimum air-fuel ratio in accordance with the engine operating conditions and the atmospheric temperature. In the conventional carburetor system, the air-fuel ratio of the mixture to be supplied to the combustion chamber is determined by the amount of intake air and fuel that is measured on the basis of the jets to be used in the carburetor. Despite the same amount of intake air, the fuel amount requirement varies with the engine operating conditions (acceleration, deceleration, and operation under a heavy load). The carburetor that measures fuel through the use of jets are provided with various auxiliary devices, so that the optimum air fuel ratio can be obtained to accommodate frequent changes in the operating conditions of the engine.
This model has adopted an electronically controlled fuel injection (FI) system, in place of the conventional carburetor system. This system can obtain the optimum air-fuel ratio required by the engine at all times by using a microprocessor that regulates the fuel injection amount according to the engine operating conditions detected by various sensors.
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Frequently Asked Questions
Our support team searches for useful product information and answers to frequently asked questions. If you find an inaccuracy in our frequently asked questions, please let us know by using our contact form.
How many miles is one kilometer? Verified
One kilometer equals 0,621 mile. Ten kilometers makes 6,21 miles. One mile equals 1,609 kilometer. Ten miles makes 16,09 kilometers.
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