They will be releasing the new Tracer 900 next year, with a few upgrades.
Official: Yamaha Tracer 900 and Tracer 900GT | EICMA 2017
https://www.youtube.com/watch?v=LDm9Z2DX8rY
Might be a good opportunity to pick up an older FZ-09 or MT-09 off the shop floor for a reasonable price...
The basics of how Yamaha implemented EFI on many models. There is some new information for some and for others these videos support what we have learned over the years...
Yamaha EFI
Yamaha EFI
Yamaha fuel injector testing
Yamaha fuel injector testing
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over on 600cc.org for...