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Suzuki TU250 G Grasstracker
Suzuki TU250 GB Grasstracker Bigboy
2002—


I have tried to tell the Suzuki TU 250 Grasstracker model history on this page, as I know it. The page is still under construction. I would be grateful of any contributions — sales brochures, magazine ads, magazine articles, pictures, specs, facts, corrections etc. Please scan the material in JPEG format (large enough that all the details are visible) and send them to me. Please tell me the source and the publication date if possible. If you send me pictures of your own bike, please follow these instructions.

'02 TU250GB Big Boy

Suzuki 2002More Suzuki models from 2002
2002 Suzuki year code: K2
 
Suzuki launched two new models in Japan for the 2002-year's program in March 2002, the TU250G Grasstracker and a larger version of the same model, the TU250GB Grasstracker BigBoy. As the model name TU250 reveals, the models have a lot in common with the street sports model TU250 Volty, but the design and the chassis are more suited for riding in the terrain. No, they are no offroad machines, at least no more than the early seveties' TS machines were.

Mechanically the models are almost identical, except for some details. The Bigboy model has a kick starter as well as an electric starter and has got larger wheels and tyres. Both models use the same frame and engine.

Even the design is more seventies than 21st century, personally I like the looks of the bikes and wouldn't mind using one when taking a spin to the beach or for shorter trips anywhere, they are rather cheap models. In Japan, that is. Unfortunatelly the models are not imported to Sweden. Probably the model is not sold in any countries outside Japan.

Colors available (Grasstracker Bigboy): Yellow/Black, Blue/White, Orange/Black.
Colors available (Grasstracker): Red/White, Silver.
 

Suzuki TU250GB Big Boy -02TU 250 GB Grasstracker Bigboy 2002
Overall Length: 2 135 mm (84.1 in)
Overall Width: 910 mm (35.8 in)
Overall Height: 1 145 mm (45.1 in)
Seat Height: 785 mm (30.9 in)
Wheelbase: 1 405 mm (55.3 in)
Ground Clearance: 200 mm (7.9 in)
Dry Weight: 127 kg (279 lbs)
Engine type: Air-cooled 249 cc single cylinder, SOHC, 4 valves. 20 hp (15 kW)/ 7.500 rpm, 21 Nm (2,1 kg-m)/ 6.000 rpm.

Click on the image for larger format. Here's even larger picture.

Suzuki TU250GB Big Boy -02TU 250 GB Grasstracker Bigboy 2002
Overall Length: 2 135 mm (84.1 in)
Overall Width: 910 mm (35.8 in)
Overall Height: 1 145 mm (45.1 in)
Seat Height: 785 mm (30.9 in)
Wheelbase: 1 405 mm (55.3 in)
Ground Clearance: 200 mm (7.9 in)
Dry Weight: 127 kg (279 lbs)
Engine type: Air-cooled 249 cc single cylinder, SOHC, 4 valves. 20 hp (15 kW)/ 7.500 rpm, 21 Nm (2,1 kg-m)/ 6.000 rpm.

Click on the image for larger format.

Suzuki TU250G Grass TrackerTU 250 G Grasstracker 2002
Overall Length: 1 995 mm (78.5 in)
Overall Width: 900 mm (35.4 in)
Overall Height: 1 130 mm (44.5 in)
Seat Height: 745 mm (29.3 in)
Wheelbase: 1 325 mm (52.2 in)
Ground Clearance: 160 mm (6.3 in)
Dry Weight: 123 kg (271 lbs)
Engine type: Air-cooled 249 cc single cylinder, SOHC, 4 valves. 20 hp (15 kW)/ 7.500 rpm, 21 Nm (2,1 kg-m)/ 6.000 rpm.

Click on the image for larger format. Here's even larger picture.



'02 TU250GB Big Boy

Suzuki 2003More Suzuki models from 2003
2003 Suzuki year code: K3

 
In my opinion, the 2003-year's models are not as beautiful as for the first model year. The differences are small, but noticable. The graphics on the fuel tank are simpler, and that's about everything that's changed for 2003.

For those who like the looks of the Suzuki's multi-purpose bikes from the early seventies, the new looks of the Bigboy is perhaps welcome. It the wheels were chromed, the similarity would be even more striking.

Colors available (Grasstracker Bigboy): Yellow/Black, Blue/White, Silver/Black.
Colors available (Grasstracker): Red, Silver.
 

Suzuki TU250GB Big Boy -02TU 250 GB Grasstracker Bigboy 2003
Overall Length: 2 135 mm (84.1 in)
Overall Width: 910 mm (35.8 in)
Overall Height: 1 145 mm (45.1 in)
Seat Height: 785 mm (30.9 in)
Wheelbase: 1 405 mm (55.3 in)
Ground Clearance: 200 mm (7.9 in)
Dry Weight: 127 kg (279 lbs)
Engine type: Air-cooled 249 cc single cylinder, SOHC, 4 valves. 20 hp (15 kW)/ 7.500 rpm, 21 Nm (2,1 kg-m)/ 6.000 rpm.

Click on the image for larger format.

Suzuki TU250GB Big Boy -02TU 250 GB Grasstracker Bigboy 2003
Overall Length: 2 135 mm (84.1 in)
Overall Width: 910 mm (35.8 in)
Overall Height: 1 145 mm (45.1 in)
Seat Height: 785 mm (30.9 in)
Wheelbase: 1 405 mm (55.3 in)
Ground Clearance: 200 mm (7.9 in)
Dry Weight: 127 kg (279 lbs)
Engine type: Air-cooled 249 cc single cylinder, SOHC, 4 valves. 20 hp (15 kW)/ 7.500 rpm, 21 Nm (2,1 kg-m)/ 6.000 rpm.

Click on the image for larger format.

Suzuki TU250GB Big Boy -02TU 250 GB Grasstracker Bigboy 2003
Overall Length: 2 135 mm (84.1 in)
Overall Width: 910 mm (35.8 in)
Overall Height: 1 145 mm (45.1 in)
Seat Height: 785 mm (30.9 in)
Wheelbase: 1 405 mm (55.3 in)
Ground Clearance: 200 mm (7.9 in)
Dry Weight: 127 kg (279 lbs)
Engine type: Air-cooled 249 cc single cylinder, SOHC, 4 valves. 20 hp (15 kW)/ 7.500 rpm, 21 Nm (2,1 kg-m)/ 6.000 rpm.

Click on the image for larger format.

Suzuki TU250G GrasstrackerTU 250 G Grasstracker 2003
Overall Length: 1 995 mm (78.5 in)
Overall Width: 900 mm (35.4 in)
Overall Height: 1 130 mm (44.5 in)
Seat Height: 745 mm (29.3 in)
Wheelbase: 1 325 mm (52.2 in)
Ground Clearance: 160 mm (6.3 in)
Dry Weight: 123 kg (271 lbs)
Engine type: Air-cooled 249 cc single cylinder, SOHC, 4 valves. 20 hp (15 kW)/ 7.500 rpm, 21 Nm (2,1 kg-m)/ 6.000 rpm.

Click on the image for larger format.
Suzuki TU250G GrasstrackerTU 250 G Grasstracker 2003
Overall Length: 1 995 mm (78.5 in)
Overall Width: 900 mm (35.4 in)
Overall Height: 1 130 mm (44.5 in)
Seat Height: 745 mm (29.3 in)
Wheelbase: 1 325 mm (52.2 in)
Ground Clearance: 160 mm (6.3 in)
Dry Weight: 123 kg (271 lbs)
Engine type: Air-cooled 249 cc single cylinder, SOHC, 4 valves. 20 hp (15 kW)/ 7.500 rpm, 21 Nm (2,1 kg-m)/ 6.000 rpm.

Click on the image for larger format.

2002-2003 TU250G Grasstracker (NJ47A) specifications (Japan)
Engine type (J424): Air/oil-cooled single cylinder SOHC 4-stroke, 4 valves
Piston displacement: 249 cc
Valve system: SOHC, 2 valves per cylinder, chain driven
Compression ratio: 9,0:1
Carburetor: BSR32
Lubricating system: Wet sump wet sump type
Engine oil capacity: 1,7 liter (1.8 qt.)
Bore x stroke: 72.0 x 61.2 mm (2.83 x 2.41 in.)
Power output: 20 hp (15 kW)/ 8.000 rpm
Torque: 21 Nm (2,1 kg-m)/ 5.500 rpm
Starting system: Electric starter
Ignition: CDI
Overall length: 1 995 mm (78.5 in)
Overall width: 900 mm (35.4 in)
Overall height: 1 130 mm (44.5 in)
Seat height: 745 mm (29.3 in)
Wheelbase: 1 325 mm (52.2 in)
Ground clearance: 160 mm (6.3 in)
Dry weight: 123 kg (271 lbs)
Clutch: Wet multiple plate, coil springs
Transmission: 5 speed, chain
Primary reduction ratio: 3.238
Gear ratios, 1st gear: 2.636
2nd gear: 1.687
3rd gear: 1.200
4th gear: 0.952
5th gear: 0.818
Frame: Steel craddle
Caster: 28° 25'
Trail: 92 mm (3.622 in)
Front suspension: Telescopic, hydraulic dampers, coil springs
Rear suspension: Swinging arm, hydraulic dampers, coil springs
Front tyre: 3.00-18
Rear tyre: 3.00-18
Front brake: Single hydraulic disc
Rear brake: Drum brake
Minimum turning radius: 2,4 m (7.9 ft.)
Fuel tank capacity: 6 liter (6.3 qt.)
Fuel consumption: 54,5 km/liter (60 km/h)
Steering angle (left to right): 40°
Recommended retail price: 339,000 Yen (2003, Japan)



2002-2003 TU250GB Grasstracker Bigboy (NJ47A) specifications (Japan)
Engine type (J424): Air/oil-cooled single cylinder SOHC 4-stroke, 4 valves
Piston displacement: 249 cc
Valve system: SOHC, 2 valves per cylinder, chain driven
Compression ratio: 9,0:1
Carburetor: BSR32
Lubricating system: Wet sump wet sump type
Engine oil capacity: 1,7 liter (1.8 qt.)
Bore x stroke: 72.0 x 61.2 mm (2.83 x 2.41 in.)
Power output: 20 hp (15 kW)/ 8.000 rpm
Torque: 21 Nm (2,1 kg-m)/ 5.500 rpm
Starting system: Electric and kick starter
Ignition: CDI
Overall length: 2 135 mm (84.1 in)
Overall width: 910 mm (35.8 in)
Overall height: 1 145 mm (45.1 in)
Seat height: 785 mm (30.9 in)
Wheelbase: 1 405 mm (55.3 in)
Ground clearance: 200 mm (7.9 in)
Dry weight: 127 kg (279 lbs)
Clutch: Wet multiple plate, coil springs
Transmission: 5 speed, chain
Primary reduction ratio: 3.238
Gear ratios, 1st gear: 2.636
2nd gear: 1.687
3rd gear: 1.200
4th gear: 0.952
5th gear: 0.818
Frame: Steel craddle
Caster: 28° 00'
Trail: 92 mm (3.622 in)
Front suspension: Telescopic, hydraulic dampers, coil springs
Rear suspension: Swinging arm, hydraulic dampers, coil springs
Front tyre: 100/90-19
Rear tyre: 130/80-18
Front brake: Single hydraulic disc
Rear brake: Drum brake
Minimum turning radius: 2,4 m (7.9 ft.)
Fuel tank capacity: 6 liter (6.3 qt.)
Fuel consumption: 54,5 km/liter (60 km/h)
Steering angle (left to right): 40°
Recommended retail price: 374,000 Yen (2003, Japan)






More: All Suzuki models


Sources: Suzuki Motor Company (Japan), Autoby magazine (Japan)

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