Suzuki DR800S Big

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Suzuki-DR800--90.jpg
Suzuki DR800
Manufacturer
Also called DR Big800S (reduced effect), DR Big 800 S (reduced effect), DR Big800S, DR Big 800 S, DR800S Big, DR 800 S Big, DR800S, DR 800 S, DR 800
Production 1990 - 1999
Class Dual purpose
Predecessor Suzuki DR750S Big
Engine
Air/oil cooled, four stroke, single cylinder. SOHC, 4 Valve per cylinder.
Bore / Stroke 105.0mm x 90.0mm
Top Speed 99 mph (159 km/h)
Horsepower 48.95 HP (36.5 KW) @ 6600RPM
Torque 43.52 ft/lbs (59.0 Nm) @ 5400RPM
Fuel System 2 x Mikuni BST 33SS Carburetors
Ignition Electronic
Transmission 5 Speed constant mesh
Suspension Front: 38mm Telescopic, coil spring, air damped
Rear: Link type, coil spring, gas/oil damped, spring preload fully adjustable
Brakes Front: Single 280 mm disc, 2 piston caliper
Rear: Single 220 mm disc
Front Tire 90/90-21
Rear Tire 130/80-17
Wheelbase 1520 mm / 59.8 in
Seat Height 876 mm / 34.5 in
Weight 185 kg / 408 lbs (dry),
Oil Filter K&N KN-137
Recommended Oil Suzuki ECSTAR 10w40
Fuel Capacity 29 Liters / 7.7 US gal / 6.4 Imp gal
Manuals Service Manual

The Suzuki DR800S Big was a single cylinder, four-stroke Trail motorcycle produced by Suzuki between 1990 and 1999. It could reach a top speed of 99 mph (159 km/h). Max torque was 43.52 ft/lbs (59.0 Nm) @ 5400 RPM. Claimed horsepower was 48.95 HP (36.5 KW) @ 6600 RPM.


Engine[edit]

The engine was a Air/oil cooled cooled Air/oil cooled, four stroke, single cylinder. SOHC, 4 Valve per cylinder.. The engine featured a 105 x 90 mm compression ratio.

Chassis[edit]

It came with a 90/90-21 front tire and a 130/80-17 rear tire. Stopping was achieved via Single 280 mm disc, 2 piston caliper in the front and a Single 220 mm disc in the rear. The front suspension was a 38mm Telescopic, coil spring, air damped while the rear was equipped with a Link type, coil spring, gas/oil damped, spring preload fully adjustable. The DR800S Big was fitted with a 29 Liters / 7.7 US gal / 6.4 Imp gal fuel tank. The bike weighed just 185 kg / 408 lbs. The wheelbase was 1520 mm / 59.8 in long.

Photos[edit]

Suzuki DR800 Suzuki DR800 Suzuki DR800

Overview[edit]

No standard bike has the larger cylinder displacement than DR Big. The engine is although narrower than any twin offroad engine. The enormous single suits well for those who think twins are too clumsy and need more power than the smaller singles can offer. Naturally, no large single cylinder like low. But slow cruising with the highest gear is not what DR Big was meant to. That’s the limitation you have to live with if you buy a DR Big.

No, DR Big is a bike for riders who don’t want to ride fast, and not just on the tarmac. DR Big is a mass production model of the DR-Z, rode by Gaston Rahier at the Paris-Dakar rally

If you have long legs, the form of the gasoline tank could make your life a bit miserable. You knees simply wouldn’t fit into the sunken tank sides. The problem was solved in 1991 year’s model when the gasoline tank was totally redesigned.

DR800 replaced the DR750 in 1990. The engine got six mm longer stroke (the bore was unchanged 105 mm), the cylinder displacement increased from 727 cc to 779 cc. Otherwise it was still just about the same bike.

DR Big saw a major update in 1991. The gasoline tank was decreased with five Liters , now being ”only” 24 Liters . The form of the tank was also new; the scooping on the sides of the tank was made wider for riders with long legs. The saddle was wider and more comfortable and even the suspension was upgraded.

For being a large offroad bike the DR Big has always had an unusually well balanced suspension and long suspension travel. You can actually take it for a spin on a cross circuit without risking a heart attack.

The models before 1991 are the best choice for really long distances with their enormous gasoline tank and the possibility of getting lots of packing with you. The exhaust was placed relative low that makes it possible for fastening saddlebags without risking burning them up. On the other hand, the saddle is not that comfortable on the older models.

Although the models after 1991 were more comfortable and perhaps better looking, the new exhausts (now two pipes instead of one) were not as practical and even raised the weight balance.

Source


Specifications[edit]

Make Model Suzuki DR 800S Big
Year 1990
Engine Type Air/oil cooled, four stroke, single cylinder. SOHC, 4 Valve per cylinder.
Displacement 779 cc / 47.5 cu in
Bore X Stroke 9.5:1
Compression 105 x 90 mm
Cooling System Air/oil cooled
Induction 2 x Mikuni BST 33 SS carburetors
Ignition Electronic
Starting Electric
Max Power 39.1 kW / 52.5 hp @ 7000 rpm
Max Torque 58.8 Nm / 6.0 kgf-m / 43.4 lb-ft @ 5500 rpm
Transmission 5 Speed constant mesh
Final Drive Chain, 116 links
Front Suspension 38mm Telescopic, coil spring, air damped
Rear Suspension Link type, coil spring, gas/oil damped, spring preload fully adjustable
Front Brakes Single 280 mm disc, 2 piston caliper
Rear Brakes Single 220 mm disc
Front Tire 90/90-21
Rear Tire 130/80-17
Dimensions Length 2265 mm / 89.2 in Width: 865 mm / 34.1 in Height 1325 mm / 52.2 in
Wheelbase 1520 mm / 59.8 in
Seat Height 876 mm / 34.5 in
Ground Clearance 230 mm / 9.1 in
Dry Weight 185 kg / 408 lbs
Fuel Capacity 29 Liters / 7.7 US gal / 6.4 Imp gal
Road Test Bike Magazine Group Test 1992 Motosprint Group Test 1992


In Media[edit]

External Links[edit]