Yamaha GTS1000: review, history, specs

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1993 Yamaha GTS right profile.jpg
Yamaha GTS1000
Manufacturer
Also called GTS1000 ABS, GTS 1000 ABS, GTS 1000
Production 1993 - 1998
Class Naked
Engine
in-line four, four-stroke
Bore / Stroke 76.2mm x 76.2mm
Compression ratio 10.8:1
Top Speed 149 mph (240 km/h)
Horsepower 95.88 HP (71.5 KW) @ 9000RPM
Torque 75.24 ft/lbs (102.0 Nm) @ 6500RPM
Spark Plug NGK DPR8EA-9 '93-94
Battery YUASA YTX14-B5 '93-94
Transmission Gear box: 5-speed

Final Drive: chain

Clutch: Wet, multiple discs, hydraulic operated
Final Drive Chain: 532x118
Front Sprocket 17T
Rear Sprocket 47T
Suspension Front: Single sided swingarm variable preload, compression and rebound damping
Rear: Monocross variable preload, compression and rebound damping
Brakes Front: Single 330mm disc 6 piston caliper with ABS
Rear: Single 282mm disc 2 piston caliper
Front Tire 130/60 ZR17
Rear Tire 170/60 ZR17
Wheelbase 58.9 inches (1496 mm)
Length 85.39 inches (2169 mm)
Width 27.6 inches (701 mm)
Seat Height 31.1 inches (790 mm)
Weight 553.36 pounds (251.0 Kg) (dry), 278.0 kg (wet)
Oil Filter K&N KN-303[1]
Recommended Oil Yamalube 10w-40
Fuel Capacity 5.28 Gallon (20.00 Liters)
Competition Honda ST1100
Manuals Service Manual


The Yamaha GTS1000 was a in-line four, four-stroke Naked motorcycle produced by Yamaha between 1993 and 1998. It could reach a top speed of 149 mph (240 km/h). Max torque was 75.24 ft/lbs (102.0 Nm) @ 6500 RPM. Claimed horsepower was 95.88 HP (71.5 KW) @ 9000 RPM.


1993 Yamaha GTS1000A

History[edit]

The 1993 model year saw the introduction of a bike heralded by some as the bike of the century. Yamaha produced one of the finest motorcycles ever built, the GTS-1000. It was a technological tour de force.

Yamaha's GTS-1000 featured the following technologies: RADD front suspension, Electronic fuel injection (Yamaha's first), ABS brakes (front and rear), a three-way catalytic converter, genesis-technology engine.

Yamaha called it Advanced Sport Touring, certainly the GTS-1000 is one of the most forward-thinking motorcycle designs ever. Central to the design is James Parker's RADD front suspension. RADD stands for Rationally Advanced Design; the system lives up to its name. RADD is a perfect example of racetrack technology coming to production motorcycles.


Forkless Pioneer[edit]

The RADD MC Yamaha's GTS front suspension layout had been designed ten years earlier by James Parker, an American bike enthusiast and engineer whose firm RADD was based in Santa Fe, New Mexico. Parker developed his idea with a Honda XL600-based prototype that was tested by future 500cc world champion Wayne Rainey. This led to a striking Yamaha FZ750-powered prototype, the RADD MC2, built in 1987 in conjunction with Motorcyclist magazine and Los Angeles studio GK Design. Yamaha then bought rights to Parker's design, and contracted the American to help develop the GTS1000.

when its front suspension kept working in a way that a telescopic system could not approach.

There was plenty of outright stopping power, too, although the ABS system was too sensitive. Unfortunately several failings, unrelated to suspension design, limited the GTS1000's appeal as a sports-tourer. Fuel consumption was poor and the tank range small. The fairing was narrow, and its screen generated turbulence. Worst of all the GTS was extremely expensive. Those factors, and the absence of any major advantage in most situations, resulted in poor sales. The Yamaha's failure ensured that telescopic forks would dominate motorcycle front suspension for years to come.

The front suspension is similar to the double-wishbone suspension that has been found on race cars for many years. To accommodate the 90 degree twist on this older but effective idea, the lower swingarm is single-sided. A telescopic steering shaft provides direct input from the front wheel to the handlebars. The front wheel hub is mounted on a spindle attached to a steering knuckle. Two ball joints are used to connect the steering knuckle to the upper and lower A-arms.

The most significant effects of this design came from the fact that: traditional front forks compress over bumps, and during braking the fork tubes bind in their slides, while the wheelbase and caster angle changes, creating wobbles. The GTS-1000 has an anti-dive geometry and minimal bump steer designed into the front suspension. The use of ball joints minimizes frictional area and resultant binding, and all the suspension forces are channeled straight back to the rear swingarm. Compared to even the best motorcycle, the GTS-1000 feels more stable under braking and bumper corners.

Chassis[edit]

A dished front wheel allows the immense radially vented front rotor to be located on the center line of the vehicle. This leads to phenomenal braking (60-0 mph in 89 feet!) without the usual side-pull associated with other single-rotor front braking systems. This GTS-1000 is equipped with Yamaha's excellent ABS.

The Omega frame allows the use of the engine as a stressed member and is a rigid and light means for providing the pivot-points for the aluminum front and rear swing arms. The appearance of the assembly closely resembles that of the Greek letter Omega, hence the name. Subframe of steel tubing support the seat and steering head.

Engine[edit]

The powerplant of the GTS is based on the FZR's 1002 cc, five valves per cylinder, water-cooled inline four Yamaha Genesis engine. The carburetors have been replaced with electronic fuel injection (no choke!) The EFI provides excellent power delivery with an absence of flat spots at any altitude, and gas mileage of about 47 mpg, or about 4.5 liters / 100 km. Milder camshafts and lower compression ratio have replaced the FZR's high end horsepower with real world grunt. (98 horsepower at 7500 rpm; 68 ft-lbs of torque at 6800 rpm. The GTS accelerates from 0 to 60 in about 3.3 seconds. (40-60 mph & 60-80 mph, 3.7 and 3.8 seconds respectively) and can turn 11.7's in the quarter mile at about 115 mph. This unit uses regular gas.

It was one of the most advanced motorcycles of its day, and remains a showcase of Yamaha technology.

Engine[edit]

The engine was a liquid cooled in-line four, four-stroke. A 76.2mm bore x 76.2mm stroke result in a displacement of just 1003.0 cubic centimeters.

Drive[edit]

The bike has a 5-speed transmission. Power was moderated via the Wet, multiple discs, hydraulic operated.

Chassis[edit]

It came with a 130/60 ZR17 front tire and a 170/60 ZR17 rear tire. Stopping was achieved via single disc in the front and a single disc in the rear. The front suspension was a Single sided swingarm variable preload, compression and rebound damping while the rear was equipped with a Monocross variable preload, compression and rebound damping. The GTS1000 ABS was fitted with a 5.28 Gallon (20.00 Liters) fuel tank. The bike weighed just 553.36 pounds (251.0 Kg). The wheelbase was 58.9 inches (1496 mm) long.

1993 - 1998 Yamaha GTS 1000[edit]


With the arrival of the flagship GTS, Yamaha is, in broad terms, emulating what Honda tried first with the ST1100 Pan European back in '89. Each is some kind of ultimate a ground-breaking, 'all-their-high-tech-apples-in-one-basket', true superbike

1993 - 1996 Yamaha GTS 1000 ABS[edit]

This bike has a power that comes from Yamaha's FZR1000 liquid-cooled and angled-forward cylinders, 20 valves worked by twin overhead camshafts, and capacity of 1002cc. Fuel injection, softer cams, narrower intake ports and reduced compression ratio combined to reduce peak output from 140 hp (104.4 Kw) to 100 hp (74.5 Kw) at 9000rpm.

1993[edit]



Specifications[edit]

Make Model Yamaha GTS1000 / ABS
Year 1993 - 94
Engine Type Four stroke, transverse four cylinder, DOHC, 5 valves per cylinder.
Displacement 1002 cc / 61.2 cu-in
Bore X Stroke 75.5 X 56 mm
Cooling System Liquid cooled
Compression 10.8:1
Lubrication Wet sump
Induction Electronic fuel infection.
Ignition Digital
Starting Electric
Max Power 102 hp / 74.4 kW @ 9000 rpm
Max Torque 106 Nm / 78.1 lb-ft @ 6500 rpm
Clutch Wet, multiple discs, cable operated
Transmission 5 Speed
Final Drive Chain
Gear Ratio 1 st 36/14 (2.571) 2 nd 32/1 8 (1.778) 3rd 29/21 (1.381) 4th 27/23 (1.174) 5th 28/27 (1.037)
Primary Reduction Ratio 68/41 (1.659)
Secondary Reduction Ratio 47/17 (2.765)
Front Suspension Single sided swingarm variable preload, compression and rebound damping
Front Wheel Travel 116 mm / 4.5 in
Rear Suspension Monocross variable preload, compression and rebound damping
Rear Wheel Travel 130 mm / 5.1 in
Front Brakes Single 330mm disc 6 piston caliper with ABS
Rear Brakes Single 282mm disc 2 piston caliper
Front Wheel MT3.50 x 17, Aluminum
Rear Wheel MT5.50 x 17,Aluminum
Front Tire 130/60 ZR17
Rear Tire 170/60 ZR17
Rake 24°
Trail 100 mm / 3.9 in
Dimensions Length 2170 mm / 85.4 in Width 700 mm / 27.5 in Height 1320 mm / 51.9 in
Wheelbase 1495 mm / 58.9 in
Seat Height 790 mm / 31.1 in
Dry Weight 246.0 kg / 542.3 lbs
Wet Weight 278.2 kg / 613.3 lbs
Fuel Capacity 20 Liters / 5.28 gal
Consumption Average 15.5 km/lit
Braking 60 - 0 / 100 - 0 13.9 m / 39.6 m
Standing ¼ Mile 11.8 sec / 185.6 km/h
Top Speed 227.8 km/h / 141.5 mph

Videos[edit]

In Media[edit]


References[edit]

  1. 2019 K&L Supply Co Catalog. K&L Supply Co. 2019.