Suzuki GT185: history, specs, pictures

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1974-Suzuki-GT185-Blue-0.jpg
Suzuki GT185
Manufacturer
Also called GT 185
Production 1973 - 1977
Class Road
Successor Suzuki RG185
Engine
twin, two-stroke
Bore / Stroke 49.0mm x 49.0mm
Compression ratio 7.0:1
Top Speed 78 mph (126 km/h)
Horsepower 21 HP (15.6 KW) @ 7500RPM
Torque 15.2 ft/lbs (21.0 Nm) @ 6000RPM
Fuel System carburetor. mikuni VM20SC
Ignition points
Spark Plug NGK B7HS '73-77
Battery YUASA 12N11-3A-1
Transmission Gear box: 5-speed

Final Drive: chain

Clutch: wet plate
Final Drive Chain: 520x102
Front Sprocket 14T
Rear Sprocket 42T
Suspension Front: Telescopic fork
Rear: Twin shocks
Brakes Front: single disc
Rear: expanding brake
Front Tire 2.75-18
Rear Tire 3.00-18
Wheelbase 50.79 inches (1290 mm)
Length 76.77 inches (1950 mm)
Width 30.31 inches (770 mm)
Height 41.93 inches (1065 mm)
Weight 283.07 pounds (128.4 Kg) (dry), 131.0 kg (wet)
Recommended Oil Suzuki ECSTAR 10w40
Fuel Capacity 2.64 Gallon (10.00 Liters)
Related Suzuki GT125
Manuals Service Manual


The Suzuki GT185 was an inline twin, two-stroke motorcycle produced by Suzuki between 1973 and 1978 and also known as the Adventurer. It could reach a top speed of 78 mph (126 km/h). Max torque was 15.2 ft/lbs (21.0 Nm) @ 6000 RPM.[1] Claimed horsepower was 21 HP (15.6 KW) @ 7500 RPM.[1]

Engine[edit | edit source]

The engine was a air cooled twin, two-stroke. A 49.0mm bore x 49.0mm stroke result in a displacement of just 185.0 cubic centimeters. Fuel was supplied via a port control.

Drive[edit | edit source]

The bike has a 5-speed transmission. Power was moderated via the wet plate.

Chassis[edit | edit source]

It came with a 2.75-18 front tire and a 3.00-18 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 Twin shocks. The GT185 was fitted with a 2.64 Gallon (10.00 Liters) fuel tank. The bike weighed just 283.07 pounds (128.4 Kg). The wheelbase was 50.79 inches (1290 mm) long.

1973 GT185K[edit | edit source]

  • FRAME #: GT185-10001
  • ENGINE #: GT185-10001
  • ENGINE TYPE: 184cc Two-stroke Twin
  • MODEL CODE: 361
  • COLOR: Coronado Blue
  • Drum front brake
  • Headlight mounts primary color

1974 GT185L[edit | edit source]

  • FRAME #: GT185-19784
  • ENGINE #: GT185-20228
  • ENGINE TYPE: 184cc Two-stroke Twin
  • MODEL CODE: 363
  • COLOR: Tahiti Orange
  • Hydraulic front brake
  • Chrome headlight mounts
  • Chrome rear turn signal mounts
  • 2-Stroke
  • Oil Injected
  • Electric Start
  • Street Legal

1975 GT185M[edit | edit source]



  • FRAME #: GT185-31693
  • ENGINE #: GT185-34971
  • ENGINE TYPE: ... 184cc Two-stroke Twin
  • MODEL CODE: ... 363
  • COLOR: Laredo Red
  • Locking seat latch
  • Black rear turn signal mounts


1976 GT185A[edit | edit source]

1976 Suzuki GT185A


  • FRAME #: GT185-45095
  • ENGINE #: GT185-53453
  • ENGINE TYPE: 184cc Two-stroke Twin
  • MODEL CODE: 363
  • COLOR: California Orange
  • Chrome top shroud on rear shock deleted from previous year


1977 GT185B[edit | edit source]

1977 Suzuki GT185B


  • FRAME #: GT185-61543
  • ENGINE #: GT185-69902
  • ENGINE TYPE: 184cc Two-stroke Twin
  • MODEL CODE: 363
  • COLOR: Red
  • Black side covers
  • Black headlight mounts


1973 - 1978 Suzuki GT 185[edit | edit source]


Suzuki introduced in 1973 the GT 185. This bike comes equipped with a twin cylinder, Ram Air cooling drum brakes front and rear and a combination electric starter/generator setup. In some markets the GT185 became the RG 185 and was sold with different trim.


References[edit | edit source]

  1. 1.0 1.1 https://www.oldjapanesebikes.com/mraxl_GT_Resource/manuals/gt185man/index.php (see Specifications -> Engine) orig. document by Suzuki Motor Co, LTD Export Service Department