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Suzuki GSX400 Impulse
1994
I have put some Suzuki GSX400and GSX400S Impulse (Type S) info on this page. Please send me more stuff to put here. I want brochures and adverts from all over the world!



Suzuki 1994More Suzuki models from 1994
Suzuki model year code: R

Suzuki have had loads of trouble making an impression in the 400 market. The GSF400 Bandit should have made some kind of mark but the early models proved to be unrealiable. Carburetor problems plagued its far from subtle early incarnations, though it arguably had more style and sophistication than the Impulse.

GSX400 Impulse (internal code GK79A) was released in 1994 for Japanese home market with a chassis straight out of the seventies, although it’s far more competent (125 mph, 55 mpg) than the old bruisers. The bike has the same engine internals as the GSF400 Bandit but has different engine cases and a much larger frame. The motor’s still highly strung and therefore somewhat misplaced in retro guise. Two different versions were made, the GSX400S had a cockpit fairing and blue/white paint scheme.

Suzuki GSX400 ImpulseGSX400 Impulse 1994
Overall Length: 2,065 mm (81.3 in)
Overall Width: 740 mm (29.1 in)
Overall Height: 1,110 mm (43.7 in)
Seat Height: 760 mm (29.9 in)
Wheelbase: 1,435 mm (56.5 in)
Dry Weight: 172 kg (378 lbs)
Engine type: Liquid-cooled 399 cc inline-4, DOHC, 16 valves. 53 hp / 11,000 rpm, 3.8 kg-m/ 9,500 rpm.

Click on the image for larger format.

Suzuki GSX400 Impulse type SGSX 400S Impulse 1994
Overall Length: 2,065 mm (81.3 in)
Overall Width: 740 mm (29.1 in)
Overall Height: 1,205 mm (47.4 in)
Seat Height: 760 mm (29.9 in)
Wheelbase: 1,435 mm (56.5 in)
Dry Weight: 174 kg (383 lbs)
Engine type: Liquid-cooled 399 cc inline-4, DOHC, 16 valves. 53 hp / 11,000 rpm, 3.8 kg-m/ 9,500 rpm.

Click on the image for larger format.


Suzuki 1995More Suzuki models from 1995
1995 Suzuki year code: S


Suzuki GSX400 ImpulseGSX400 Impulse 1995
Overall Length: 2,065 mm (81.3 in)
Overall Width: 740 mm (29.1 in)
Overall Height: 1,110 mm (43.7 in)
Seat Height: 760 mm (29.9 in)
Wheelbase: 1,435 mm (56.5 in)
Dry Weight: 172 kg (378 lbs)
Engine type: Liquid-cooled 399 cc inline-4, DOHC, 16 valves. 53 hp / 11,000 rpm, 3.8 kg-m/ 9,500 rpm.

Click on the image for larger format.




Suzuki 1996More Suzuki models from 1996
Suzuki model year code: T



Although the models look identical at a glance, there are some differences between the different year models of GSX400 Impulse. The wheels , the side covers and the oil filter covers and the tailpiece, to mention some details, are different. The wheelbase and the performance are the same but the bike is now a bit longer and little heavier than the first model.

New KYB suspension. Some of the 1996 models and later had “KYB” stickers on the front and back suspensions. Handles on both sides of the saddle.

Suzuki GSX400 ImpulseGSX400 Impulse 1996
Overall Length: 2,080 mm (81.9 in)
Overall Width: 740 mm (29.1 in)
Overall Height: 1,110 mm (43.7 in)
Seat Height: 760 mm (29.9 in)
Wheelbase: 1,435 mm (56.5 in)
Dry Weight: 175 kg (385 lbs)
Engine type: Liquid-cooled 399 cc inline-4, DOHC, 16 valves. 53 hp / 11,000 rpm, 3.8 kg-m/ 9,500 rpm.

Click on the image for larger format.

Suzuki GSX400 Impulse type SGSX400S Impulse 1996
Overall Length: 2,080 mm (81.9 in)
Overall Width: 740 mm (29.1 in)
Overall Height: 1,205 mm (47.4 in)
Seat Height: 760 mm (29.9 in)
Wheelbase: 1,435 mm (56.5 in)
Dry Weight: 177 kg (389 lbs)
Engine type: Liquid-cooled 399 cc inline-4, DOHC, 16 valves. 53 hp / 11,000 rpm, 3.8 kg-m/ 9,500 rpm.

Click on the image for larger format.



Suzuki 1997More Suzuki models from 1997
Suzuki model year code: U

GSX400 Impulse became soon somewhat of a cult bike in Japan, a fact that held the used bike prices high. The GSX400 Impulse owner haven't had the same problems as many GSX400 owner's in the early eighties with overheated engines, burned up alternators and corroding exhaust etc. The Impulse is as reliable as any other modern Japanese motorcycle with good performance.

There's nothing wrong with the bike, the engine runs smooth and quiet, the top end is particularly rattle free. The brakes (290 mm double disks at the front and a 250 mm single disk at the rear) are excellent and the engine is powerful but the engine never manages to find a sweet spot with enough of torque.

Sum summarum, the bike could be described as adequate. The suspension and comfort are adequate, the geometry's relatively fast turning and the stability at higher speeds is not as good as old bruisers like GS550. If the Impulse never inspires neither does it frighten.

Suzuki GSX400 ImpulseGSX 400 Impulse 1997
Overall Length: 2,080 mm (81.9 in)
Overall Width: 740 mm (29.1 in)
Overall Height: 1,110 mm (43.7 in)
Seat Height: 760 mm (29.9 in)
Wheelbase: 1,435 mm (56.5 in)
Dry Weight: 175 kg (385 lbs)
Engine type: Liquid-cooled 399 cc inline-4, DOHC, 16 valves. 53 hp / 11,000 rpm, 3.8 kg-m/ 9,500 rpm.

Click on the image for larger format.


Suzuki 1999More Suzuki models from 1999
1999 Suzuki year code: X


The 1999-year's Suzuki 400 Impulse got new front brakes and side panel logos. The old panels said “GSX 400” while the new ones says “Impulse”.

Suzuki GSX400 ImpulseGSX 400 Impulse 1999
Overall Length: 2,080 mm (81.9 in)
Overall Width: 740 mm (29.1 in)
Overall Height: 1,110 mm (43.7 in)
Seat Height: 760 mm (29.9 in)
Wheelbase: 1,435 mm (56.5 in)
Dry Weight: 175 kg (385 lbs)
Engine type: Liquid-cooled 399 cc inline-4, DOHC, 16 valves. 53 hp / 11,000 rpm, 3.8 kg-m/ 9,500 rpm.

Click on the image for larger format.



Suzuki 2000More Suzuki models from 2000

SUZUKI IMPULSE400 SESMIC-2 FULL EXHAUST

SUZUKI IMPULSE400 SESMIC-2 FULL EXHAUST

available at cmsnl.com - parts for a better ride



Suzuki 2001More Suzuki models from 2001
2001 Suzuki year code: K1

2001 GSX400 Impulse (GK79A) specifications (Japan)
Engine Type: Liquid-cooled DOHC inline-four 4-stroke
Cylinder Volume: 399 cc
Bore x Stroke: 52.0 x 47.0 mm
Compression Ratio: 11.8:1
Power output: 53 hp (37 kW)/ 11.000 rpm
Torque: 37 Nm (3.8 kg-m)/ 9.500 rpm
Fuel Tank Capacity: 16 liter
Overall Length: 2 080 mm (81.9 in.)
Overall Width: 740 mm (29.1 in.)
Overall Height: 1 110 mm (43.7 in.)
Wheelbase: 1 435 mm (56.5 in.)
Seat Height: 760 mm (29.9 in.)
Ground Clearance: 120 mm (4.7 in.)
Dry Weight: 175 kg (385 lbs)
Transmission: 6-speed Constant Mesh
1st Gear Ratio: 3.363
2nd Gear Ratio: 2.307
3rd Gear Ratio: 1.750
4th Gear Ratio: 1.437
5th Gear Ratio: 1.250
6th Gear Ratio: 1.136
Primary Drive Ratio: 1.750
Final Drive Ratio: 3.428
Starting System: Electric Starter
Ignition System: Full Transistor
Oil Capacity: 3.2 liter
Caster: 25° 40'
Trail: 98 mm (3.86 in.)
Front Tire: 110/70-17 54H
Rear Tire: 140/70-17 66H
Front Brake: Double Hydraulic Disk
Rear Brake: Single Hydraulic Disk
Fuel Consumption: 36,5 km/liter (60 km/h)
Carburetor Type: BST29
Turning Radius: 2,7 meter
Steering Angle (left to right): 36°
Suggested Retail Price (Japan): 599,000 Yen


Suzuki 2002More Suzuki models from 2002
2002 Suzuki year code: K2

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

Suzuki 2004More Suzuki models from 2004
2004 Suzuki year code: K4

Suzuki 2005More Suzuki models from 2005
2005 Suzuki year code: K5

In October 2004 Suzuki presented a new, gently updated version of the popular Impulse model. All Black engine, new exhaust system, some other minor upgrades. The old “Suzuki” badge on the fuel tank was replaced with Suzuki's “S” logo.

GSX400X Impulse GSX-400X GSX-400 GSX400GSX 400 Impulse 2005
Overall Length: 2,080 mm (81.9 in)
Overall Width: 745 mm (29.3 in)
Overall Height: 1,105 mm (43.5 in)
Seat Height: 760 mm (29.9 in)
Wheelbase: 1,435 mm (56.5 in)
Dry Weight: 177 kg (390 lbs)
Engine type: Liquid-cooled-cooled 399 cc inline-4, DOHC, 16 valves. 53 hp (39 kW)/ 11,000 rpm, 37 Nm (3,8 kg-m)/ 9,500 rpm.



Suzuki 2006More Suzuki models from 2006
2006 Suzuki year code: K6

Suzuki 2007More Suzuki models from 2007
2007 Suzuki year code: K7

Suzuki 2008More Suzuki models from 2008
2008 Suzuki year code: K8


The “KYB” stickers are now gone. A Special Edition model with the 1982 GSX400FS Impulse red/white/black graphics was introduced in December 21th, 2007.

GSX400X Impulse GSX-400X GSX-400 GSX400GSX 400 Impulse 2008
Overall Length: 2,080 mm (81.9 in)
Overall Width: 745 mm (29.3 in)
Overall Height: 1,105 mm (43.5 in)
Seat Height: 760 mm (29.9 in)
Wheelbase: 1,435 mm (56.5 in)
Dry Weight: 177 kg (390 lbs)
Engine type: Liquid-cooled 399 cc inline-4, DOHC, 16 valves. 53 hp (39 kW)/ 11,000 rpm, 37 Nm (3,8 kg-m)/ 9,500 rpm.

GSX400X Impulse GSX-400X GSX-400 GSX400GSX 400 Impulse 2008
Overall Length: 2,080 mm (81.9 in)
Overall Width: 745 mm (29.3 in)
Overall Height: 1,105 mm (43.5 in)
Seat Height: 760 mm (29.9 in)
Wheelbase: 1,435 mm (56.5 in)
Dry Weight: 177 kg (390 lbs)
Engine type: Liquid-cooled 399 cc inline-4, DOHC, 16 valves. 53 hp (39 kW)/ 11,000 rpm, 37 Nm (3,8 kg-m)/ 9,500 rpm.

GSX400X Impulse GSX-400X GSX-400 GSX400GSX 400 Impulse SE 2008
Overall Length: 2,080 mm (81.9 in)
Overall Width: 745 mm (29.3 in)
Overall Height: 1,105 mm (43.5 in)
Seat Height: 760 mm (29.9 in)
Wheelbase: 1,435 mm (56.5 in)
Dry Weight: 177 kg (390 lbs)
Engine type: Liquid-cooled 399 cc inline-4, DOHC, 16 valves. 53 hp (39 kW)/ 11,000 rpm, 37 Nm (3,8 kg-m)/ 9,500 rpm.

GSX400X Impulse GSX-400X GSX-400 GSX400GSX 400 Impulse SE 2008
Overall Length: 2,080 mm (81.9 in)
Overall Width: 745 mm (29.3 in)
Overall Height: 1,105 mm (43.5 in)
Seat Height: 760 mm (29.9 in)
Wheelbase: 1,435 mm (56.5 in)
Dry Weight: 177 kg (390 lbs)
Engine type: Liquid-cooled 399 cc inline-4, DOHC, 16 valves. 53 hp (39 kW)/ 11,000 rpm, 37 Nm (3,8 kg-m)/ 9,500 rpm.






More: Suzuki GSX models

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