Yamaha VMX V-Max 1200
Yamaha VMX V-Max 1200 | |
Manufacturer | |
---|---|
Production | 1984 - 87 |
Engine | Four stroke, V-four, DOHC, 4 valve per cylinder. |
Compression ratio | 10.5:1 |
Top Speed | 146 mph / 235 km/h |
Ignition | CDI |
Transmission | 5 Speed |
Frame | Double cradle steel tube |
Suspension | Front: 40mm Kayaba forks, Air pressure Rear: Dual Kayaba shocks, adjustable for preload damping. |
Brakes | Front: 2x 298mm discs 2 piston calipers Rear: Single 282mm disc 2 piston caliper |
Front Tire | 110/90-18 |
Rear Tire | 150/90-15 |
Wheelbase | 1590 mm / 65.6 in |
Seat Height | 765 mm / 30.1 in |
Weight | 254 kg / 560 lbs (dry), 274 kg / 604 lbs (wet) |
Recommended Oil | Yamalube 10w-40 |
Fuel Capacity | 15 Liters / 3.9 US gal |
Manuals | Service Manual |
It could reach a top speed of 146 mph / 235 km/h.
Engine[edit | edit source]
The engine was a Liquid cooled cooled Four stroke, V-four, DOHC, 4 valve per cylinder.. The engine featured a 10.5:1 compression ratio.
Drive[edit | edit source]
Power was moderated via the Wet, multi disc.
Chassis[edit | edit source]
It came with a 110/90-18 front tire and a 150/90-15 rear tire. Stopping was achieved via 2x 298mm discs 2 piston calipers in the front and a Single 282mm disc 2 piston caliper in the rear. The front suspension was a 40mm Kayaba forks, Air pressure while the rear was equipped with a Dual Kayaba shocks, adjustable for preload damping.. The VMX V-Max 1200 was fitted with a 15 Liters / 3.9 US gal fuel tank. The bike weighed just 254 kg / 560 lbs. The wheelbase was 1590 mm / 65.6 in long.
Photos[edit | edit source]
Overview[edit | edit source]
Yamaha V-Max
Yamaha's V-Max is designed to excel in the acceleration field. Its top speed of around 135mph is not as high as it might be, given a monstrous V4 engine with a power output of 135bhp, and compared with race-replica models. What is sensational is how quickly it gets to that speed. Acceleration is the V-Max's reason for being, helped by the fat rear tire like that of a drag bike and gearing to match.
Launched in 1984, the V-Max became at once the ultimate hot rod, the fastest-accelerating road bike ever, sizzling through the standing quarter mile in not quite ten seconds. Ten years before, only specialized dragsters could accelerate like that.
The basis of this factory hot rod
was the big V4 engine from Yamaha's Venture tourer - a veritable river-barge
of a bike, festooned with fairings and luggage gear. All that went, and the
V-Max was left behind, spare but still monstrous, its styling dominated by
the massive engine with two giant air-scoops for the four down-draught
carburettors where you would expect to see the fuel tank. The V-Max, like
the Venture, has a low-slung tank beneath the seat, with the fuel pumped up
to the four greedy carburetor throats.
A vestigial pillion seat
completed the spartan look, while the back tire behind it was of
unprecedented width: a 150/90 x 15 monster.
The engine was revitalized to
release more of its fire-breathing potential, with the output rising from
90bhp in Venture trim to a massive 135bhp as the V-Max. The factory hop-up
job was thorough, including a stronger crankshaft, lightened pistons with a
10.5:1 compression ratio, bigger valves, and high-lift double overhead
camshafts. Yamaha also introduced a novel system of automatic butterfly
valves linking the inlet tracts below the carburettors, which smoothed out
the power delivery right across the rev range. The V-Max retained the shaft
drive of the touring bike, freeing the owner from the burden of replacing
shattered rear chains and the hard-worked rear tire.In a straight line,
there is nothing to touch the V-Max. The way it hunkers down and takes off
leaves all its rivals gasping. If its handling on a twisty road is a bit
twitchy, it makes up so much ground Jberween the bends that it hardly
matters.
On a long high-speed run, the
rider - sitting upright and holding onto high and wide handlebars - feels
like a parachute as the wind catches the chest. This more or less confined
the V-Max's usefulness to the USA, where low speed limits favor fast
acceleration at the expense of top speed. Europe did not see the V-Max,
except as a spectre of the imagination.
Make Model | Yamaha V-Max |
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Year | 1984 - 87 |
Engine Type | Four stroke, V-four, DOHC, 4 valve per cylinder. |
Displacement | 1198 cc / 73.1 cu-in |
Bore X Stroke | 76 х 66 mm |
Cooling System | Liquid cooled |
Compression | 10.5:1 |
Induction | 4x 35mm Mikuni BDS35 carburetor |
Ignition | CDI |
Starting | Electric |
Max Power | 145 hp / 108 kW @ 9000 rpm |
Max Torque | 12.4 kgf-m / 89.6 lb-ft @ 7500 rpm |
Clutch | Wet, multi disc |
Transmission | 5 Speed |
Final Drive | Shaft |
Frame | Double cradle steel tube |
Front Suspension | 40mm Kayaba forks, Air pressure |
Front Wheel Travel | 140 mm / 5.5 in |
Rear Suspension | Dual Kayaba shocks, adjustable for preload damping. |
Rear Wheel Travel | 100 mm / 3.9in |
Front Brakes | 2x 298mm discs 2 piston calipers |
Rear Brakes | Single 282mm disc 2 piston caliper |
Front Tire | 110/90-18 |
Rear Tire | 150/90-15 |
Rake | 29° |
Trail | 119 mm / 4.7 in |
Wheelbase | 1590 mm / 65.6 in |
Seat Height | 765 mm / 30.1 in |
Ground Clearance | 145 mm / 5.7 in |
Dry Weight | 254 kg / 560 lbs |
Wet Weight | 274 kg / 604 lbs |
Fuel Capacity | 15 Liters / 3.9 US gal |
Consumption Average | 39 mpg |
Braking 60 - 0 / 100 - 0 | |
Standing ¼ Mile | 10.8 sec / 125mph 200 km/h |
Top Speed | 146 mph / 235 km/h |