Suzuki GT380: history, specs, pictures

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1974-Suzuki-GT380-Blue-412-1.jpg
Suzuki GT380
Manufacturer
Also called Sebring, GT380J, GT 380 J, GT 380
Production 1972 - 1979
Class Sport touring
Predecessor Suzuki T350
Engine
in-line three, two-stroke
Bore / Stroke 54.0mm x 54.0mm
Compression ratio 7.2:1
Top Speed 90 mph (145 km/h)
Horsepower 26.42 HP (19.7 KW) @ 6500RPM
Torque 28.03 ft/lbs (38.0 Nm) @ 6000RPM
Fuel System Carburetor
Spark Plug NGK B8ES '74-77
NGK B7ES '72-73
Battery YUASA 12N7-4A '72-73 , '74-77
Transmission Gear box: 6-speed

Final Drive: chain

Clutch: Wet multi-plate
Final Drive Chain: 530x104
Front Sprocket 15T
Rear Sprocket 40T
Suspension Front: Telescopic fork
Rear: Dual shocks
Brakes Front: single disc
Rear: expanding brake
Front Tire 3.00-19
Rear Tire 3.50-18
Wheelbase 54.29 inches (1379 mm)
Length 82.28 inches (2090 mm)
Width 31.3 inches (795 mm)
Seat Height 30.98 inches (787 mm)
Weight 190.0 kg (wet)
Fuel Capacity 3.96 Gallon (15.00 Liters)
Related Suzuki GT380
Suzuki GT550
Suzuki GT750
Competition Yamaha RD350
Kawasaki S2
Manuals Service Manual

Brochures · Reviews ·


The Suzuki GT380 was a in-line three, two-stroke Sport touring motorcycle produced by Suzuki between 1972 and 1979. It could reach a top speed of 90 mph (145 km/h). Max torque was 28.03 ft/lbs (38.0 Nm) @ 6000 RPM. Claimed horsepower was 26.42 HP (19.7 KW) @ 6500 RPM.

Engine[edit]

The engine was a air cooled in-line three, two-stroke. A 54.0mm bore x 54.0mm stroke result in a displacement of just 371.0 cubic centimeters. Fuel was supplied via a port control.

Drive[edit]

The bike has a 6-speed transmission. Power was moderated via the Wet multi-plate.

Chassis[edit]

It came with a 3.00-19 front tire and a 3.50-18 rear tire. Stopping was achieved via single disc in the front and a expanding brake in the rear. The front suspension was a Telescopic fork while the rear was equipped with a Dual shocks. The GT380 was fitted with a 3.96 Gallon (15.00 Liters) fuel tank. The wheelbase was 54.29 inches (1379 mm) long.


1972 GT380J[edit]

1972 Suzuki GT380J


  • FRAME #: GT380-10001
  • ENGINE #: GT380-10001
  • ENGINE TYPE: ... 371 cc Two-stroke Triple
  • MODEL CODE: ... 330
  • COLOR: Jamaica Red, Hawaii Green
  • Headlight flat on bottom
  • Front drum brake
  • Side cover, headlight housing and mounts primary color

1973 GT380K[edit]

1973 Suzuki GT380K


  • FRAME #: GT380-30919
  • ENGINE #: GT380-32894
  • ENGINE TYPE: ... 371 cc Two-stroke Triple
  • MODEL CODE: ... 330
  • COLOR: Canyon Red, Coronado Blue
  • Hydraulic front brake
  • Round headlight
  • Locking gas cap
  • Side cover, headlight housing and mounts primary color

1974 GT380L[edit]

1974 Suzuki GT380L
1974 Suzuki GT380 in Blue
1974 Suzuki GT380 in Blue
1974 Suzuki GT380 in Blue
1974 Suzuki GT380 in Gold
1974 Suzuki GT380 in Gold
1974 Suzuki GT380 in Gold
1974 Suzuki GT380 in Gold
1974 Suzuki GT380 in Gold
1974 Suzuki GT380 in Gold
1974 Suzuki GT380 in Gold
1974 Suzuki GT380 in Gold
1974 Suzuki GT380 in Gold
1974 Suzuki GT380 in Gold
1974 Suzuki GT380 in Gold
1974 Suzuki GT380 in Gold
1974 Suzuki GT380 in Gold



  • FRAME #: GT380-48732
  • ENGINE #: GT380-53849
  • ENGINE TYPE: ... 371 cc Two-stroke Triple
  • MODEL CODE: ... 331
  • COLOR: Redondo Blue, Aztec Gold
  • Chrome air cleaner covers
  • Chrome headlight mounts
  • Rear grab rail
  • Digital gear indicator

1975 GT380M[edit]

1975 Suzuki GT380M
1975 Suzuki GT380 in Red
1975 Suzuki GT380 in Red
1975 Suzuki GT380 in Red
1975 Suzuki GT380 in Red
1975 Suzuki GT380 in Red



  • FRAME #: GT380-65984
  • ENGINE #: GT380-73229
  • ENGINE TYPE: 371 cc Two-stroke Triple
  • MODEL CODE: 331
  • COLOR Silver Mist, Gypsy Red
  • Two piece tank stripes

1976 GT380A[edit]

1976 Suzuki GT380A
1976 Suzuki GT380 Sebring in Black
1976 Suzuki GT380 Sebring in Black
1976 Suzuki GT380 Sebring in Black
1976 Suzuki GT380 Sebring in Black
1976 Suzuki GT380 Sebring in Black
1976 Suzuki GT380 Sebring in Black


  • FRAME #: GT380-86754
  • ENGINE #: GT380-97353
  • ENGINE TYPE: ... 371 cc Two-stroke Triple
  • MODEL CODE: ... 331
  • COLOR: Black, Coronado Blue
  • Front fender has lower support only
  • 6 Speed
  • Kick start


1977 GT380B[edit]

1977 Suzuki GT380B
1977 Suzuki GT380 Sebring in Black
1977 Suzuki GT380 Sebring in Black
1977 Suzuki GT380 Sebring in Black
1977 Suzuki GT380 Sebring in Black
1977 Suzuki GT380 in Blue
1977 Suzuki GT380 in Blue
1977 Suzuki GT380 in Blue
1977 Suzuki GT380 in Blue
1977 Suzuki GT380 in Blue
1977 Suzuki GT380 in Blue


  • FRAME #: GT380-95063
  • ENGINE #: GT380-108577
  • ENGINE TYPE: ... 371 cc Two-stroke Triple
  • MODEL CODE: ... 331
  • COLOR: Red, Blue
  • Black headlight mounts and housing


1972 - 1979 Suzuki GT 380[edit]

1972 - 1979 Suzuki GT 380 1972 - 1979 Suzuki GT 380


The 1972 Suzuki GT 380 showed much promise, on paper at least. If the other Japanese manufacturers had stood still during the 70`s then the GT 380 would have made perfect sense. The GT 380 saw some minor improvements every year of its production; this was never enough to bring it to the forefront of the capacity class.


In Media[edit]