Massively inclined engine, five valves per cylinder and almost vertical intakes. So is Yamaha’s FZ750 something truly special?

Not the ones in the cylinder head, but the valves and variable flaps hiding in your exhaust system – made famous by the Yamaha’s EXUP. Here’s the what, why and how…

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Our glorious Harris Magnum 2 is back, with its loom completed and wiring finalised by electrical wizard Ferret. There’s every danger Alan might be riding it, come the spring

Steve Rothwell answering your ENGINE MANAGEMENT queries