MotoGP »

Evolution of the YZR-M1 - part two.

"This chassis did not have chatter but we struggled to set up the chassis because we had to throw away all the data from the winter tests [with the previous chassis]. After the Brno GP, we modified the new chassis again and this one we used from Sepang onwards.

"For the engine, we concentrated on developing the best balance between power and fuel economy. We gained approximately five horsepower and 400rev/min more with the same fuel economy [compared with 2005]."

Of course, Rossi and Yamaha were ultimately denied the 2006 title when the Italian fell at the Valencia finale - handing Nicky Hayden and Honda the world championship - but Rossi and the new 800cc Yamaha will be seeking revenge next season.

Speaking in conclusion, Tsuji underlined the most important aspects learnt during the 990cc M1 era.

"The YZR-M1 was designed and developed to achieve the best handling. This concept feeds back to production bikes like the YZF-R1 and YZF-R6," said Tsuji.

"The adaptation of 'uneven-firing' technology to the in-line four cylinder engine has made a big improvement in rideability. This technology is spreading in MotoGP.

"Through 2002 - 2006 the engine management system has seen a lot of progress. Each year sees an increase in the number of items on the bike that are controlled by the EMS system."

Yamaha, like its main rivals, has already begun track testing of its new 800cc machine, which will be raced for the first time at the Qatar Grand Prix on March 10, 2007.

Related Pictures

Click on relevant pic to enlarge
Rossi, Japanese MotoGP, 2006
Targets, modifications and development of the 2006 Yamaha YZR-M1.
Under the skin of the Yamaha YZR-M1.
Suter MMX 500 (pic: Suter)
Rossi and Vinales with M1 engine
Smith`s Yamaha M1, Japan MotoGP 2016
Rossi using under seat fuel tank, Sepang MotoGP test Feb 2016
Yamaha M1, Japanese MotoGP 2015
Rossi, Yamaha M1, Japanese MotoGP 2015
Yamaha M1 bike, Czech MotoGP 2015
This year’s British MotoGP round at Silverstone will include two classic races
Carbon fibre part on Ducati, French MotoGP 2015
Yamaha M1, Qatar MotoGP Race 2015
Rabat’s crashed bike parts, Jerez Moto2/3 Test March 2015
inside Lorenzo`s crashed Yamaha, Sepang MotoGP tests, February 2015
inside Lorenzo`s crashed Yamaha, Sepang MotoGP tests, February 2015
Lorenzo`s Yamaha after crash, Michelin tyre test day, Sepang MotoGP tests, February 2015
Parts, Valencia Moto2/3 test 10-12 Feb 2015

Start the conversation - Add your comment

Please login or register before adding your comments.

Although the administrators and moderators of this website will attempt to keep all objectionable comments off these pages, it is impossible for us to review all messages. All messages express the views of the poster, and neither Crash Media Group nor Crash.Net will be held responsible for the content of any message. We do not vouch for or warrant the accuracy, completeness or usefulness of any message, and are not responsible for the contents of any message. If you find a message objectionable, please contact us and inform us of the problem or use the [report] function next to the offending post. Any message that does not conform with the policy of this service can be edited or removed with immediate effect.

© 1999 - 2017 Crash Media Group

The total or partial reproduction of text, photographs or illustrations is not permitted in any form.