The 1981 Suzuki TS125 Dual Sport motorcycle is powered by a 123 cc 2-stroke cycle, air-cooled engine.
The TS125 was introduced for the Japanese home market in December 1970. It had 13 bhp, five speeds and high-drawn exhaust pipe. It also had a sister model, a trail version called TC-125 (Prospector in USA) with dual-range gearbox with eight speeds, luggage rack and higher mounted front mud guard that made the bike more suitable for terrain. The TC trail series were built from 90 to 250 cc but the whole model series was discontinued in the seventies.
DIMENSIONS AND DRY MASS<br> Overall length: 2,120 mm (83.5 in.)<br> Overall width: 800 mm (31.5 in.)<br> Overall height: 1,135 mm (44.7 in)<br> Wheelbase: 1,350 mm (53.1 in.)<br> Ground clearance: 250 mm (9.8 in.)<br> Dry mass: 97 kg (214 lbs)
ENGINE<br> Type: 2-stroke cycle, air-cooled<br> Intake System: Piston Ported<br> Number of cylinder: 1<br> Bore: 56.0 mm (2.205 in.)<br> Stroke: 50.0 mm (1.969 in.)<br> Piston Displacement: 123 cm<sup>3</sup> (7.5 cu. in.)<br> Corrected compression ratio: 6.6 : 1<br> Carburetor: VM24SH<br> Air cleaner: Polyurethane foam element<br> Starter system: Primary Kick<br> Lubrication system: SUZUKI "CCI"
TRANSMISSION SYSTEM<br> Clutch: Wet multi-plate type<br> Transmission: 6-speed, constant mesh<br> 5-speed earlier models e.g. TS 125A. Gearshift pattern: 1-down 5-up<br> 1-down 4-up earlier. Primary reduction: 3.562 (57/16)<br> Final reduction ratio: 3.066 (46/15)<br> Gear ratios, low: 3.090 (34/11)<br> 2nd : 2.000 (30/15)<br> 3rd : 1.368 (26/19)<br> 4th : 1.095 (23/21)<br> 5th : 0.956 (22/23)<br> Top : 0.840 (21/25)<br> Drive chain: DAIDO #428D, 116 links
CHASSIS<br> Front suspension: Telescopic, oil damped<br> Rear suspension: Swinging arm, oil dampened, spring 5-way adjustable<br> Steering angle: 40ð (right and left)<br> Caster: 60ð00'<br> Trail: 147 mm (5.79 in.)<br> Turning radius: 2.4 m (7.9 ft)<br> Front brake: Internal Expanding<br> Rear brake: Internal Expanding<br> Front tire size: 2.75-21 4PR<br> Rear tire size: 4.10-18 4PR
ELECTRICAL SYSTEM Ignition type: SUZUKI "PEI"<br> Ignition timing: 20ðB.T.D.C. at 6,000 r/min<br> Spark plug: NGK B8ES or NIPPON DENSO W24ES<br> Battery: 6V 14.4kC (4Ah) 10HR<br> Fuse: 10A<br> Headlight: 6V 30/30W<br> Tail/Brake light: 6V 5.3/25W<br> Turn signal light: 6V 17W<br> Speedometer light: 6V 3W<br> Neutral indicator light: 6V 3W<br> High beam indicator light: 6V 1.7W<br> Turn signal indicator light: 6V 3W
CAPACITIES<br> Fuel tank, including reserve: 7.0 L (1.8/1.5 US/lmp gal)<br> reserve : 1.5 L (1.6/1.3 US/lmp qt)<br> Engine oil: 1.2 L (1.3/1.1 US/lmp qt)<br> Transmission oil: 700 ml (1.5/1.2 US/lmp pt)