"Our plan was to test a prototype version of the machine at Brno [August] but now it will probably be after the [end of season] Valencia Grand Prix."
Nakamoto hopes all of the 2014 riders will be able to try the new bike at Valencia, but that no rider or team deals were yet in place.
Asked how many of the bikes HRC expect to sell, Nakamoto replied: "Five riders. We can make more, but five is a reasonable number I think."
The availability of additional privateer machines (Honda) and engines (Yamaha) are required to ratify the previously announced 2014 technical changes, which include allowing the manufacturers to keep using their own software with the new-for-2014 control ECU.