Yamaha will lease its world championship winning YZR-M1 MotoGP engines to privateer teams from 2014.

This will be in addition to Yamaha's four official MotoGP entries, two at the Factory Yamaha team and two at the satellite Monster Yamaha Tech 3 outfit.

The full statement can be seen below:

"Yamaha Motor Co., Ltd can confirm it has entered into an agreement with the MotoGP World Championship Promoter, Dorna Sports S.L., to supply YZR-M1 engines on an annual lease basis to participating teams in the MotoGP Championship.

"The initial program will operate for the 2014-15-16 seasons.

"The agreement comes as a result of Yamaha's work with Dorna and the sport's governing body, the FIM, to further promote the MotoGP World Championship.

"The lease agreement facilitates an increase in competitive engines being available for teams competing in the premier class. The teams will then be free to develop their own bikes around the Yamaha engine or contract an independent chassis manufacturer to construct the complete bike.

"Full details of the engine lease supply offer will be available shortly to serious prospective enquirers.

"Interested teams are requested to contact Dorna or Yamaha Motor Racing directly."

A deadline of this weekend's season-opening Qatar MotoGP had been set for 'the satisfactory conclusion of ongoing negotiations between FIM, Dorna and the Manufacturers concerning the supply of additional machines and engines for use by other teams from 2014'.

In return for the additional machines/engines, the MotoGP manufacturers - presently Honda, Yamaha and Ducati, with Suzuki planning a return next season - will be allowed to continue using their own software inside the control ECU system being introduced next year.

Yamaha's long expected engine announcement follows the news that Honda is building a customer version of its RC213V MotoGP prototype, which will race under the privateer 'CRT' rules - allowing extra fuel and engine changes relative to the official Manufacturer bikes.

It is not clear what specification the customer M1 engines will be, but Honda has chosen to use a conventional spring valve system - rather than pneumatic valves - to cut costs for its privateer bike.

Like Yamaha, Honda - which hopes to supply five riders and have its customer bike ready for the end of season Valencia test - has not yet signed an agreement with any teams.

At present, the privateer 'Claiming Rule Teams' - which fill 12 of the 24 grid places - are using modified Superbike engines to power their prototype chassis designs. All privateers will use the full control ECU system next year.


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