Suzuki DR800S Big
Suzuki DR800 | |
Manufacturer | |
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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 |
Class | [[:Category:Dual-purpose motorcycles|Dual-purpose]] [[Category:Dual-purpose motorcycles]] |
Engine | Air/oil cooled, four stroke, single cylinder. SOHC, 4 Valve per cylinder. |
Compression ratio | 105 x 90 mm |
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), |
Recommended Oil | Suzuki ECSTAR 10w40 |
Fuel Capacity | 29 Liters / 7.7 US gal / 6.4 Imp gal |
Manuals | Service Manual |
Engine
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
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
Overview
Suzuki DR 800S Big
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. Thats the limitation you have to live with if you buy
a DR Big.
No, DR Big is a bike for riders who dont 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 wouldnt fit into the sunken tank sides. The problem was solved in 1991 years 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
Make Model | Suzuki DR 800S Big |
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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 |