Yamaha XT 600Z Ténéré

The rear suspension, with its Monocross rising-rate system, is generally successful at keeping its wheel in contact sufficiently to use power to escape trouble and the increase in unsprung weight dictated by Yamaha's penny-pinching retreat to a steel swing arm from the previous model's alloy item is hardly noticeable. Our boy knows, though, that continual abuse of the 9.3 inch rear travel will lead to overheating of the de Carbon-type shock, lacking as it does a remote reservoir like comparable items on Yamaha's motocross bikes, and a subsequent loss of damping effect.

He goes for the smart option, heading back towards the interminable dunes. Once onto harder and smoother going, he steers in a graceful and fast arc by hanging off the bike's nearside and applying spurts of power to the back wheel, the sidetread of its tyre spitting plumes of fine sand into the air as the tortured rubber spins in a controlled slide. Irrespective of its obvious bulk, the Ténéré feels, steers and handles like a true dirt bike in such special conditions, and its rider becomes almost overwhelmed with an atavistic urge to do as much damage to what little remains of adjacent ecology — an emotion familiar to most off-road hooligans — as he brutally kicks his way up through the notchy gearbox in search of a lonely and purely theoretical holeshot, a victory over self.

Punishment for this retreat from reason is swift. He has got far too close to the dunes and is about to reap the bitter harvest of allowing concentration to slip. The front wheel ploughs into deep sand, tucks in and is overtaken by the rear as the bike peremptorily performs a classic endo, ejecting the rider in an equally classic fashion over the bars. Undaunted and unhurt by his flailing maelstrom of arms and legs causing a minor sandstorm, he gets back on his feet and sprints to pick up the bike, fearful of fuel loss considering the isolated circumstances. It is undamaged, the side of the new-style pannier tank being completely unmarked. He is right to worry, though, because the relocation of the '86 Ténéré's enlarged six-litre airbox under the centre of the tank has considerably reduced its capacity - from 32 liters down to 23 - cutting range under everything but the most arduous conditions from over 300 miles of autonomy to only about 230 miles.

The revised tank shape is not without advantages as containing fuel in lower-slung side panniers has noticeably reduced the centre of gravity - further aided by a reduction in the altitude of both oiltank and toolkit to positions alongside the rear shock thanks to the airbox's change in location. The slimmer tank, which is less susceptible to crash damage, and the handling improvement from an attack on the earlier model's top-heaviness have to be weighed against the necessity for a fuel pump on this bike, though. When the nearest spares counter is some significant distance over an inhospitable horizon, these considerations matter...

He climbs back on, stabbing the starter button to effortlessly rekindle the fire, thankful not to be wasting energy and oozing valuable bodily fluids from gaping pores with frenzied use of the kick lever. Even beyond the bounds of civilisation, an electric foot is worth the extra weight. The Ténéré takes a little time to get properly moving again, chucking large quantities of soft yellow sand into the air as it digs a deep rut in bottom gear. Gradually, the bike wins its battle and he boots it up a gear, aiming away from the worst going without, fortunately, burying it up to the axles.

Back on a steady bearing, the rider returns to full-throttle exploitation of the XT600ZE's not-inconsiderable power. He thinks back to the claimed 44bhpof the bike it superceded. He ruminates, as the miles of emptiness are relentlessly consumed under the Ténéré's splendidly capable wheels, on the uprated engine's move towards better breathing and, therefore, more power at high revs. Apart from the bigger airbox, it's got bigger valves, more radical cam profiles and the secondary CV carb's venturi diameter has been increased from 27 to 28mm.

The manufacturer now claims a robust 46bhp but Motad's Bosch dyno only discovered 35.3 horses at the back wheel. When the original Ténéré came out, this same device found a mere 28.6bhp but Alan Baker's lads appear to be suffering hallucinations typical of the desert because they "remember' a figure and power curve identical to the new one. Whether Yamaha objectively went to all that technical trouble for nothing, as our boy blasts across the scorching wastes he cannot help but feel that he is interfacing with a quicker and more stable bike.

The thought of hallucinations — those mean tricks of the desert — is never far from the edge of his consciousness. His tortured eyes, straining into the heat haze ahead of the bike, suddenly perceive a strange coalescence, a sharper definition with lines of bright blue and green. Is it a mirage?

Oh well, time to stop playing games. I rolled off the throttle and then brought the Ténéré to a straightline stop with both wheels locked and skimming the sand, some distance before the beach faded into Laugharne Sands, the inlet curving away past Ginst Point to Laugharne village with its picturesque ruined castle on the edge of reed beds and the boathouse where Dylan Thomas used to marinate himself in after-hours drinking bouts whilst scribbling 'Under Milk Wood'. The Welsh poet's infatuation with the demon drink wasn't far from my mind as I stood next to the bike, waiting for the photographer-laden truck to catch up, thirsty enough to drain an entire barrel of the already-sampled-and-approved local Buckley bitter.

Alright, then perhaps the seven-miles-long Pendine Sands, facing Carmarthen Bay and famed for Parry Thomas's Source Bike Magazine 1986